Product Description
6800 series deep groove ball bearings
Product Description
Deep Groove Ball Bearings
Deep groove ball bearing
This is the most widely used ball bearing type. Trapped between the 2 races is a ring of balls that transmit the load and allows rotational motion between the 2 races. The balls are held in place by a retainer.
They have very low rolling friction and are optimized for low noise and low vibration. This makes them ideal for high-speed applications.
They are comparatively easy to install and require minimal maintenance. Care must be taken during installation to prevent denting of the races as they have to be push fit CZPT shafts.6800 series deep groove ball bearings
Detailed Photos
Product Parameters
| No. | Size | Rated load | Weight | ||||||||||
| Inner Diameter | Out Diameter | Width (B) | Chamfering | Dynamic | Static | ||||||||
| d | D | Open Type | Shielded Type | rsmin (r) | Cr | Cr | Close | ||||||
| mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | N | N | KG | |
| 603 | 3 | 0.1181 | 9 | 0.3543 | 3 | 0.1181 | 5 | 0.1181 | 0.2 | 0.008 | 486 | 223 | 0.0014 |
| 604 | 4 | 0.1575 | 12 | 0.4724 | 4 | 0.1575 | 4 | 0.1575 | 0.2 | 0.008 | 960 | 350 | 0.571 |
| 605 | 5 | 0.1969 | 14 | 0.5512 | 5 | 0.1969 | 5 | 0.1969 | 0.2 | 0.008 | 1070 | 420 | 0.0037 |
| 606 | 6 | 0.2362 | 17 | 0.6693 | 6 | 0.2362 | 6 | 0.2362 | 0.3 | 0.012 | 1960 | 730 | 0.0069 |
| 607 | 7 | 0.2756 | 19 | 0.7480 | 6 | 0.2362 | 6 | 0.2362 | 0.3 | 0.012 | 2800 | 1060 | 0.0082 |
| 608 | 8 | 0.3150 | 22 | 0.8661 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 3290 | 1360 | 0.0129 |
| 609 | 9 | 0.3543 | 24 | 0.9449 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 3330 | 1410 | 0.0160 |
| 6000 | 10 | 0.3937 | 26 | 1.5716 | 8 | 0.3150 | 8 | 0.3150 | 0.3 | 0.012 | 4160 | 1780 | 0.0190 |
| 6001 | 12 | 0.4724 | 28 | 1.1571 | 8 | 0.3150 | 8 | 0.3150 | 0.3 | 0.012 | 5110 | 2380 | 0.5710 |
| 6002 | 15 | 0.5906 | 32 | 1.2598 | 9 | 0.3543 | 9 | 0.3543 | 0.3 | 0.012 | 5590 | 2840 | 0.0300 |
| 6003 | 17 | 0.6693 | 35 | 1.3780 | 10 | 0.3937 | 10 | 0.3937 | 0.3 | 0.012 | 6000 | 3250 | 0.0390 |
| 6004 | 20 | 0.7874 | 42 | 1.6535 | 12 | 0.4724 | 12 | 0.4724 | 0.6 | 0.571 | 9390 | 5571 | 0.0690 |
| 6005 | 25 | 0.9843 | 47 | 1.8504 | 12 | 0.4724 | 12 | 0.4724 | 0.6 | 0.571 | 10060 | 5860 | 0.0800 |
| 6006 | 30 | 1.1811 | 55 | 2.1654 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.039 | 11900 | 7460 | 0.1160 |
| 6007 | 35 | 1.3780 | 62 | 2.4409 | 14 | 0.5512 | 14 | 0.5512 | 1 | 0.039 | 16210 | 10420 | 0.1150 |
| 6008 | 40 | 1.5748 | 68 | 2.6677 | 15 | 0.5906 | 15 | 0.5906 | 1 | 0.039 | 17030 | 11700 | 0.1920 |
| 6009 | 45 | 1.7717 | 75 | 2.9528 | 16 | 0.6299 | 16 | 0.6299 | 1 | 0.039 | 21080 | 14780 | 0.2450 |
| 6571 | 50 | 1.9685 | 80 | 3.1496 | 16 | 0.6299 | 16 | 0.6299 | 1 | 0.039 | 22000 | 16260 | 0.2610 |
| 60/22 | 22 | 0.8661 | 44 | 1.7323 | 12 | 0.4724 | 12 | 0.4724 | 0.6 | 0.571 | 9400 | 5050 | 0.0740 |
| 60/28 | 28 | 1.1571 | 52 | 2.571 | 12 | 0.4724 | 12 | 0.4724 | 0.6 | 0.571 | 12500 | 7400 | 0.0980 |
| 60/32 | 32 | 1.2598 | 58 | 2.2835 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.039 | 15100 | 9150 | 0.1290 |
| No. | Size | Rated load | Weight | ||||||||||
| Inner Diameter | Out Diameter | Width (B) | Chamfering | Dynamic | Static | ||||||||
| d | D | Open Type | Shielded Type | rsmin (r) | Cr | Cr | Close | ||||||
| mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | N | N | KG | |
| 623 | 3 | 0.1181 | 10 | 0.3937 | 4 | 0.1575 | 4 | 0.1575 | 0.15 | 0.006 | 640 | 220 | 0.0016 |
| 624 | 4 | 0.1575 | 13 | 0.5118 | 5 | 0.1969 | 5 | 0.1969 | 0.2 | 0.008 | 1150 | 400 | 0.0032 |
| 625 | 5 | 0.1969 | 16 | 0.6299 | 5 | 0.1969 | 5 | 0.1969 | 0.3 | 0.012 | 1880 | 680 | 0.0051 |
| 626 | 6 | 0.2362 | 19 | 0.7480 | 6 | 0.2362 | 6 | 0.2362 | 0.3 | 0.012 | 2800 | 1060 | 0. |
| 627 | 7 | 0.2756 | 22 | 0.8661 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 3290 | 1360 | 0.0131 |
| 628 | 8 | 0.3150 | 24 | 0.9449 | 8 | 0.3150 | 8 | 0.3150 | 0.3 | 0.012 | 3330 | 1410 | 0.0170 |
| 629 | 9 | 0.3543 | 26 | 1.5716 | 8 | 0.3150 | 8 | 0.3150 | 0.3 | 0.012 | 4160 | 1780 | 0.0191 |
| 6200 | 10 | 0.3937 | 30 | 1.1811 | 9 | 0.3543 | 9 | 0.3543 | 0.6 | 0.571 | 5110 | 2380 | 0.0320 |
| 6201 | 12 | 0.4724 | 32 | 1.2598 | 10 | 0.3937 | 10 | 0.3937 | 0.6 | 0.571 | 6180 | 3060 | 0.571 |
| 6202 | 15 | 0.5906 | 35 | 1.3780 | 11 | 0.4331 | 11 | 0.4331 | 0.6 | 0.571 | 7450 | 3700 | 0.0450 |
| 6203 | 17 | 0.6693 | 40 | 1.5748 | 12 | 0.4724 | 12 | 0.4724 | 0.6 | 0.571 | 9560 | 4780 | 0.0650 |
| 6204 | 20 | 0.7874 | 47 | 1.8504 | 14 | 0.5512 | 14 | 0.5512 | 1 | 0.039 | 12840 | 6650 | 0.1060 |
| 6205 | 25 | 0.9843 | 52 | 2.571 | 15 | 0.5906 | 15 | 0.5906 | 1 | 0.039 | 14571 | 7930 | 0.1280 |
| 6206 | 30 | 1.1811 | 62 | 2.4409 | 16 | 0.6299 | 16 | 0.6299 | 1 | 0.039 | 19460 | 11310 | 0.1990 |
| 6207 | 35 | 1.3780 | 72 | 2.8346 | 17 | 0.6693 | 17 | 0.6693 | 1.1 | 0.043 | 25670 | 15300 | 0.2880 |
| 6208 | 40 | 1.5748 | 80 | 3.1496 | 18 | 0.7087 | 18 | 0.7087 | 1.1 | 0.043 | 29520 | 18140 | 0.3660 |
| No. | Size | Rated load | Weight | ||||||||||
| Inner Diameter | Out Diameter | Width (B) | Chamfering | Dynamic | Static | ||||||||
| d | D | Open Type | Shielded Type | rsmin (r) | Cr | Cr | Close | ||||||
| mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | N | N | KG | |
| 633 | 3 | 0.1181 | 13 | 0.5118 | 5 | 0.1969 | 5 | 0.1969 | 0.2 | 0.008 | 1300 | 485 | 0.0034 |
| 634 | 4 | 0.1575 | 16 | 0.6299 | 5 | 0.1969 | 5 | 0.1969 | 0.3 | 0.012 | 1880 | 680 | 0.0054 |
| 635 | 5 | 0.1969 | 19 | 0.7480 | 6 | 0.2362 | 6 | 0.2362 | 0.3 | 0.012 | 2810 | 1060 | 0.0089 |
| 636 | 6 | 0.2362 | 22 | 0.8661 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 3290 | 1360 | 0.0145 |
| 637 | 7 | 0.2756 | 26 | 1.5716 | 9 | 0.3543 | 9 | 0.3543 | 0.3 | 0.012 | 3340 | 1410 | 0.5718 |
| 638 | 8 | 0.3150 | 28 | 1.1571 | 9 | 0.3543 | 9 | 0.3543 | 0.3 | 0.012 | 4160 | 1780 | 0.0303 |
| 639 | 9 | 0.3543 | 30 | 1.1811 | 10 | 0.3937 | 10 | 0.3937 | 0.6 | 0.571 | 5120 | 2390 | 0.571 |
| 6300 | 10 | 0.3937 | 35 | 1.3780 | 11 | 0.4331 | 11 | 0.4331 | 0.6 | 0.571 | 7640 | 3470 | 0.571 |
| 6301 | 12 | 0.4724 | 37 | 1.4567 | 12 | 0.4724 | 12 | 0.4724 | 1 | 0.039 | 9700 | 4190 | 0.0600 |
| 6302 | 15 | 0.5906 | 42 | 1.6535 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.039 | 11400 | 5430 | 0.0820 |
| 6303 | 17 | 0.6693 | 47 | 1.8504 | 14 | 0.5512 | 14 | 0.5512 | 1 | 0.039 | 13580 | 6580 | 0.1150 |
| 6304 | 20 | 0.7874 | 52 | 2.0742 | 15 | 0.5906 | 15 | 0.5906 | 1.1 | 0.043 | 15940 | 7880 | 0.1490 |
| 6305 | 25 | 0.9843 | 62 | 2.4409 | 17 | 0.6693 | 17 | 0.6693 | 1.1 | 0.043 | 22380 | 11490 | 0.2320 |
| 6306 | 30 | 1.1811 | 72 | 2.8346 | 19 | 0.7480 | 19 | 0.7480 | 1.1 | 0.043 | 27000 | 15200 | 0.3490 |
| 63/22 | 22 | 0.8661 | 56 | 2.2047 | 16 | 0.6299 | 16 | 0.6299 | 1.1 | 0.043 | 18400 | 9250 | 0.1760 |
| 63/28 | 28 | 1.1571 | 68 | 2.6772 | 18 | 0.7087 | 18 | 0.7087 | 1.1 | 0.043 | 26800 | 14000 | 0.2870 |
| 63/32 | 32 | 1.2598 | 75 | 2.9528 | 20 | 0.7874 | 20 | 0.7874 | 1.1 | 0.043 | 30000 | 16200 | 0.3820 |
| No. | Size | Rated load | Weight | ||||||||||
| Inner Diameter | Out Diameter | Width (B) | Chamfering | Dynamic | Static | ||||||||
| d | D | Open Type | Shielded Type | rsmin (r) | Cr | Cr | Close | ||||||
| mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | N | N | KG | |
| 683 | 3 | 0.1181 | 7 | 0.2756 | 2 | 0.0787 | 3 | 0.1181 | 0.1 | 0.004 | 420 | 135 | 0.571 |
| 684 | 4 | 0.1575 | 9 | 0.3543 | 2.5 | 0.0984 | 4 | 0.1575 | 0.1 | 0.004 | 480 | 170 | 0.571 |
| 685 | 5 | 0.1969 | 11 | 0.4331 | 3 | 0.1181 | 5 | 0.1969 | 0.15 | 0.006 | 770 | 320 | 0.0019 |
| 686 | 6 | 0.2362 | 13 | 0.5118 | 3.5 | 0.1378 | 5 | 0.1969 | 0.15 | 0.006 | 1080 | 440 | 0.0571 |
| 687 | 7 | 0.2756 | 14 | 0.5512 | 3.5 | 0.1378 | 5 | 0.1969 | 0.15 | 0.006 | 1170 | 510 | 0.0030 |
| 688 | 8 | 0.3150 | 16 | 0.6299 | 4 | 0.1575 | 5 | 0.1969 | 0.2 | 0.008 | 1250 | 590 | 0.0038 |
| 689 | 9 | 0.3543 | 17 | 0.6693 | 4 | 0.1575 | 5 | 0.1969 | 0.2 | 0.008 | 1330 | 660 | 0.0440 |
| 6800 | 10 | 0.3937 | 19 | 0.7480 | 5 | 0.1969 | 5 | 0.1969 | 0.3 | 0.012 | 1590 | 750 | 0.0050 |
| 6801 | 12 | 0.4724 | 21 | 0.8268 | 5 | 0.1969 | 5 | 0.1969 | 0.3 | 0.012 | 1910 | 1040 | 0.0060 |
| 6802 | 15 | 0.5906 | 24 | 0.9449 | 5 | 0.1969 | 5 | 0.1969 | 0.3 | 0.012 | 2070 | 1250 | 0.0070 |
| 6803 | 17 | 0.6693 | 26 | 1.5716 | 5 | 0.1969 | 5 | 0.1969 | 0.3 | 0.012 | 2130 | 1360 | 0.0080 |
| 6804 | 20 | 0.7874 | 32 | 1.2598 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 3480 | 2230 | 0.0190 |
| 6805 | 25 | 0.9843 | 37 | 1.4567 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 3680 | 2630 | 0.5710 |
| 6806 | 30 | 1.1811 | 42 | 1.6535 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 4000 | 3150 | 0.0260 |
| 6807 | 35 | 1.3780 | 47 | 1.8504 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 4270 | 3600 | 0.5710 |
| 6808 | 40 | 1.5748 | 52 | 2.571 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 4410 | 3890 | 0.0330 |
| 6809 | 45 | 1.7717 | 58 | 2.2835 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 4590 | 4330 | 0.0400 |
| 6810 | 50 | 1.9685 | 65 | 2.5591 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 6610 | 6080 | 0.0520 |
| 6811 | 55 | 2.1654 | 72 | 2.3846 | 9 | 0.3543 | 9 | 0.3543 | 0.3 | 0.012 | 8530 | 8080 | 0. 0571 |
| 6812 | 60 | 2.3622 | 78 | 3.0709 | 10 | 0.3937 | 10 | 0.3937 | 0.3 | 0.012 | 9200 | 8760 | 0.1060 |
| 6813 | 65 | 2.5591 | 85 | 3.3465 | 10 | 0.3937 | 10 | 0.3937 | 0.6 | 0.571 | 1571 | 9420 | 0.1250 |
| 6814 | 70 | 2.7559 | 90 | 3.5433 | 10 | 0.3937 | 10 | 0.3937 | 0.6 | 0.571 | 1571 | 10090 | 0.1350 |
| 6815 | 75 | 2.9528 | 95 | 3.7402 | 10 | 0.3937 | 10 | 0.3937 | 0.6 | 0.571 | 11230 | 1571 | 0.1450 |
| 6816 | 80 | 3.1496 | 100 | 3.9370 | 10 | 0.3937 | 10 | 0.3937 | 0.6 | 0.571 | 11320 | 11080 | 0.1550 |
| 6817 | 85 | 3.3465 | 110 | 4.3307 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.039 | 17599 | 18300 | 0.2650 |
| 6818 | 90 | 3.5433 | 115 | 4.5276 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.039 | 17853 | 18961 | 0.2800 |
| No. | Size | Rated load | Weight | ||||||||||
| Inner Diameter | Out Diameter | Width (B) | Chamfering | Dynamic | Static | ||||||||
| d | D | Open Type | Shielded Type | rsmin (r) | Cr | Cr | Close | ||||||
| mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | N | N | KG | |
| 6819 | 95 | 3.7402 | 120 | 4.7244 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.0390 | 18089 | 19616 | 0.2980 |
| 6820 | 100 | 3.9370 | 125 | 4.9213 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.0390 | 18340 | 20266 | 0.3110 |
| 6821 | 105 | 4.1339 | 130 | 5.1181 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.0390 | 18912 | 20924 | 0.3250 |
| 6822 | 110 | 4.3307 | 140 | 5.5118 | 16 | 0.6299 | 16 | 0.6299 | 1 | 0.0390 | 28100 | 30700 | 0.5100 |
| 6824 | 120 | 4.7244 | 150 | 5.9055 | 16 | 0.6299 | 16 | 0.6299 | 1 | 0.0390 | 28900 | 32900 | 0.5490 |
| 6826 | 130 | 5.1181 | 165 | 6.4961 | 18 | 0.7087 | 18 | 0.7087 | 1.1 | 0.0430 | 37900 | 42900 | 0.7900 |
| 6828 | 140 | 5.1181 | 175 | 6.8898 | 18 | 0.7087 | 18 | 0.7087 | 1 | 0. 0571 | 38200 | 44300 | 0.9900 |
| 6830 | 150 | 5.9055 | 190 | 7.4803 | 20 | 0.7874 | 20 | 0.7874 | 1 | 0. 0571 | 49100 | 57100 | 1.5000 |
| 6832 | 160 | 6.2992 | 200 | 7.8740 | 20 | 0.7874 | 20 | 0.7874 | 1 | 0. 0571 | 49600 | 59100 | 1.7000 |
| 6834 | 170 | 6.6929 | 215 | 8.4646 | 22 | 0.8661 | 22 | 0.8661 | 1 | 0. 0571 | 61500 | 73300 | 1.9000 |
| 6836 | 180 | 7.0866 | 225 | 8.8582 | 22 | 0.8661 | 22 | 0.8661 | 1 | 0. 0571 | 62300 | 75900 | 2.0000 |
| 6838 | 190 | 7.4803 | 240 | 9.4480 | 24 | 0.9449 | 24 | 0.9449 | 1.5 | 0.0590 | 75100 | 91600 | 2.1000 |
| 6840 | 200 | 7.8740 | 250 | 9.8425 | 24 | 0.9449 | 24 | 0.9449 | 1.5 | 0.0590 | 74200 | 91200 | 2.3800 |
| 6844 | 220 | 8.6614 | 270 | 10.6299 | 24 | 0.9499 | – | – | 1.5 | 0.0590 | 76400 | 97800 | 2.7900 |
| 6848 | 240 | 9.4488 | 300 | 11.8110 | 28 | 1.1571 | – | – | 2 | 0.0787 | 83500 | 108000 | 4.5000 |
| 6852 | 260 | 10.2362 | 320 | 12.5984 | 28 | 1.1571 | – | – | 2 | 0.0787 | 95000 | 128000 | 4.8500 |
| 6856 | 280 | 11.5716 | 350 | 13.7795 | 33 | 1.2992 | – | – | 2 | 0.0787 | 135000 | 178000 | 7.6000 |
| 6860 | 300 | 11.8110 | 380 | 14.9606 | 38 | 1.4960 | – | – | 2 | 0.0787 | 162000 | 222000 | 11.0000 |
| 6864 | 320 | 12.5984 | 400 | 15.7480 | 38 | 1.4960 | – | – | 2 | 0.0787 | 168000 | 235000 | 12.0000 |
| 6872 | 360 | 14.1732 | 440 | 17.3228 | 38 | 1.4960 | – | – | 2.5 | 0.0984 | – | – | 12.2000 |
| 6876 | 380 | 14.9606 | 480 | 18.8976 | 46 | 1.8110 | – | – | 2.5 | 0.0984 | 168000 | 235000 | 20.5000 |
| 6880 | 400 | 15.7480 | 500 | 19.6850 | 46 | 1.8110 | – | – | 2.5 | 0.0984 | – | – | 21.7000 |
| 6884 | 420 | 16.5354 | 520 | 20.4724 | 46 | 1.8110 | – | – | 2.5 | 0.1377 | 251000 | 425000 | 22.0000 |
| 6888 | 440 | 17.3228 | 540 | 21.2598 | 46 | 1.8110 | – | – | 2.5 | 0.0984 | – | – | 24.0000 |
| 6892 | 460 | 18.1102 | 580 | 22.8346 | 56 | 2.2047 | – | – | 3 | 0.1181 | – | – | 33.5000 |
| No. | Size | Rated load | Weight | ||||||||||
| Inner Diameter | Out Diameter | Width (B) | Chamfering | Dynamic | Static | ||||||||
| d | D | Open Type | Shielded Type | rsmin (r) | Cr | Cr | Close | ||||||
| mm | inch | mm | inch | mm | inch | mm | inch | mm | inch | N | N | KG | |
| 693 | 3 | 0.1181 | 8 | 0.3150 | 3 | 0.1181 | 4 | 0.1575 | 0.15 | 0.006 | 430 | 170 | 0.0008 |
| 694 | 4 | 0.1575 | 11 | 0.4331 | 4 | 0.1575 | 4 | 0.1575 | 0.15 | 0.006 | 960 | 350 | 0.0017 |
| 695 | 5 | 0.1969 | 13 | 0.5118 | 4 | 0.1575 | 4 | 0.1575 | 0.2 | 0.008 | 1070 | 420 | 0.571 |
| 696 | 6 | 0.2362 | 15 | 0.5906 | 5 | 0.1969 | 5 | 0.1969 | 0.2 | 0.008 | 1470 | 600 | 0.0036 |
| 697 | 7 | 0.2756 | 17 | 0.6693 | 5 | 0.1969 | 5 | 0.1969 | 0.3 | 0.012 | 1600 | 710 | 0.0050 |
| 698 | 8 | 0.3150 | 19 | 0.7480 | 6 | 0.2362 | 6 | 0.2362 | 0.3 | 0.012 | 2230 | 910 | 0.0076 |
| 699 | 9 | 0.3543 | 20 | 0.7874 | 6 | 0.2362 | 6 | 0.2362 | 0.3 | 0.012 | 2480 | 1090 | 0.0085 |
| 6900 | 10 | 0.3937 | 22 | 0.8661 | 6 | 0.2362 | 6 | 0.2362 | 0.3 | 0.012 | 2690 | 1270 | 0.5710 |
| 6901 | 12 | 0.4724 | 24 | 0.9449 | 6 | 0.2362 | 6 | 0.2362 | 0.3 | 0.012 | 2890 | 1460 | 0.0120 |
| 6902 | 15 | 0.5906 | 28 | 1.1571 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 4320 | 2250 | 0.0180 |
| 6903 | 17 | 0.6693 | 30 | 1.1811 | 7 | 0.2756 | 7 | 0.2756 | 0.3 | 0.012 | 4590 | 2550 | 0.0190 |
| 6904 | 20 | 0.7874 | 37 | 1.4567 | 9 | 0.3543 | 9 | 0.3543 | 0.3 | 0.012 | 6370 | 3680 | 0.0380 |
| 6905 | 25 | 0.9843 | 42 | 1.6535 | 9 | 0.3543 | 9 | 0.3543 | 0.3 | 0.012 | 6660 | 4180 | 0.0440 |
| 6906 | 30 | 1.1811 | 47 | 1.8504 | 9 | 0.3543 | 9 | 0.3543 | 0.3 | 0.012 | 7240 | 5571 | 0.0500 |
| 6907 | 35 | 1.3780 | 55 | 2.1654 | 10 | 0.3543 | 10 | 0.3937 | 0.6 | 0.571 | 10390 | 7160 | 0.7500 |
| 6908 | 40 | 1.5748 | 62 | 2.4409 | 12 | 0.3937 | 12 | 0.4724 | 0.6 | 0.571 | 13571 | 9200 | 0.1180 |
| 6909 | 45 | 1.7717 | 68 | 2.6772 | 12 | 0.4724 | 12 | 0.4724 | 0.6 | 0.571 | 13490 | 10130 | 0.1280 |
| 6910 | 50 | 1.9685 | 72 | 2.8346 | 12 | 0.4724 | 12 | 0.4724 | 0.6 | 0.571 | 13900 | 1571 | 0.1330 |
| 6911 | 55 | 2.1654 | 80 | 3.1496 | 13 | 0.4724 | 13 | 0.5118 | 1 | 0.039 | 14820 | 12690 | 0.1770 |
| 6912 | 60 | 2.3622 | 85 | 3.3465 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.039 | 15080 | 13480 | 0.1910 |
| 6913 | 65 | 2.5591 | 90 | 3.5433 | 13 | 0.5118 | 13 | 0.5118 | 1 | 0.039 | 19950 | 17490 | 0.2000 |
| 6914 | 70 | 2.7559 | 100 | 3.9370 | 16 | 0.6299 | 16 | 0.6299 | 1 | 0.039 | 25950 | 21850 | 0.3270 |
| 6915 | 75 | 2.9528 | 105 | 4.1339 | 16 | 0.6299 | 16 | 0.6299 | 1 | 0.039 | 26780 | 23560 | 0.3450 |
| 6916 | 80 | 3.1496 | 110 | 4.3307 | 16 | 0.6299 | 16 | 0.6299 | 1 | 0.039 | 27590 | 25280 | 0.3630 |
| 6917 | 85 | 3.3465 | 120 | 4.7244 | 18 | 0.7087 | 18 | 0.7087 | 1.1 | 0.043 | 31900 | 29700 | 0.5170 |
Product Applications
Company Profile
ZheJiang Jieyi Bearing Co., Ltd. is a more than 10-year history of bearing trading company. We are located in the biggest bearing town in China–Yiandian Town.
Our products include: Deep Groove Ball Bearings, Self-aligning Ball Bearings, Spherical Bearings, Tapered Roller Bearings, Cylindrical Roller Bearings, Needle Roller Bearings, Self-aligning Roller Bearings, Angular Contact Ball Bearings, Thrust Ball Bearings, Trust Roller Bearings and Special Bearings.
Jieyi Bearing has advanced quality testing and inspecting equipment, to guarantee product quality meets customers’ demand. Annually our company′ S export over 10 million dollars.
To service dear customers at the fastest speed, we built a great Warehouse to stock bearings, so as to ship your required bearings fast. Inside of the bearing warehouse, there is all sourcing of bearing stock, with all kinds of bearings, over 10000 types.
Jieyi Bearing also provides OEM service, such as bearing quality, noise level, grease brand, packing method, etc. We have enough OEM experience, and have a complete OEM manual for customer reference.
Products have been selling well in the American, French, Spanish, Austria, Italian, the U. A. E. Saudi, Pakistan, India, and Brizal markets.
With over 10 years′ Experience in bearings market, Jieyi Bearing have built up good relationship with all of our customers and quality factory. We always get satisfactory feedback from our customers because of the high quality products and good OEM service. We always supply the quality, stable, economical bearings and proper technical services.
Welcome to people of various enterprises with advance!
Our Advantages
WHY CHOOSE US?
1. BETTER COMMUNICATION
JVZB Bearing understands customer service more so than factories, we focus entirely on the customer so it is often easier to communicate with you.
2. FAVORABLE PRICING
JVZB Beaing often uses factories that are not big enough to have their own international sales team or export license. This means: we can work with factories that have lower prices than some easy-to-find competitors online.
3. LOW MOQ
We have great relationships with factories or have product stock on hand, CZPT to offer lower order quantities for the small sized importer.
4. SUPPLIER VERIFICATION
JVZB Bearing have more than 10 years of long-standing relationships with the factories, so we are aware of the capabilities of each. If you need, we can visit the factory to carry out product inspections and check up on an order.
5. QC CONTROL
JVZB Bearing have our own quality inspection laboratory with advanced testing equipment, we are CZPT to reasonably ensure the quality of the finished products.
6. MULTIPLE VARIETY PURCHASE
In fact, bearing factories usually only produce 1 type of bearing, or even focus on producing several models. If you want multiple items sourced for 1 product, we can help. This is a great way to source more products and do so quickly and efficiently.
7. OEM or OEM SERVICE
If you need special package or special labeling, we are glad to support OEM or OEM service.
Product List
Deeo Groove Ball Bearing
Spherical Roller Bearing
Taper Roller Bearing
Needle Roller Bearing
Pillow Block Bearing
Ceramic Bearing
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Rolling Body: | Ball Bearings |
|---|---|
| The Number of Rows: | Single |
| Outer Dimension: | Small (28-55mm) |
| Samples: |
US$ 0.1/Piece
1 Piece(Min.Order) | Order Sample Ball bearings
|
|---|
| Customization: |
Available
| Customized Request |
|---|
.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
|
Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
|---|
| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
|---|
| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
|---|

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?
Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:
- Regular Lubrication:
Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.
- Clean Environment:
Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.
- Proper Installation:
Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.
- Regular Inspections:
Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.
- Temperature Monitoring:
Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.
- Correct Handling:
Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.
- Bearing Removal and Replacement:
Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.
- Alignment Maintenance:
Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.
- Training and Education:
Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.
- Documented Records:
Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.
By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?
Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:
- Effective Sealing:
Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.
- Clean Environment:
Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.
- Proper Handling:
Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.
- Clean Tools and Equipment:
Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.
- Contamination-Controlled Workstations:
Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.
- Proper Lubrication:
Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.
- Regular Inspections:
Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.
- Training and Education:
Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.
- Environmental Controls:
In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.
- Regular Cleaning and Maintenance:
Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.
- Selection of Suitable Bearings:
Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.
By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

How does Lubrication Impact the Performance and Lifespan of Ball Bearings?
Lubrication plays a critical role in the performance and lifespan of ball bearings. Proper lubrication ensures smooth operation, reduces friction, minimizes wear, and prevents premature failure. Here’s how lubrication impacts ball bearings:
- Friction Reduction:
Lubrication creates a thin film between the rolling elements (balls) and the raceways of the bearing. This film reduces friction by separating the surfaces and preventing direct metal-to-metal contact. Reduced friction results in lower energy consumption, heat generation, and wear.
- Wear Prevention:
Lubricants create a protective barrier that prevents wear and damage to the bearing’s components. Without proper lubrication, the repeated rolling and sliding of the balls against the raceways would lead to accelerated wear, surface pitting, and eventual failure.
- Heat Dissipation:
Lubricants help dissipate heat generated during operation. The rolling elements and raceways can generate heat due to friction. Adequate lubrication carries away this heat, preventing overheating and maintaining stable operating temperatures.
- Corrosion Resistance:
Lubrication prevents moisture and contaminants from coming into direct contact with the bearing’s surfaces. This helps protect the bearing against corrosion, rust, and the formation of debris that can compromise its performance and longevity.
- Noise Reduction:
Lubricated ball bearings operate quietly because the lubricant cushions and dampens vibrations caused by the rolling motion. This noise reduction is crucial in applications where noise levels need to be minimized.
- Seal Protection:
Lubricants help maintain the effectiveness of seals or shields that protect the bearing from contaminants. They create a barrier that prevents particles from entering the bearing and causing damage.
- Improved Efficiency:
Properly lubricated ball bearings operate with reduced friction, leading to improved overall efficiency. This is especially important in applications where energy efficiency is a priority.
- Lifespan Extension:
Effective lubrication significantly extends the lifespan of ball bearings. Bearings that are properly lubricated experience less wear, reduced fatigue, and a lower likelihood of premature failure.
- Selection of Lubricant:
Choosing the right lubricant is essential. Factors such as speed, temperature, load, and environmental conditions influence the choice of lubricant type and viscosity. Some common lubricant options include grease and oil-based lubricants.
- Regular Maintenance:
Regular lubrication maintenance is crucial to ensure optimal bearing performance. Bearings should be inspected and relubricated according to manufacturer recommendations and based on the application’s operating conditions.
In summary, proper lubrication is essential for the optimal performance, longevity, and reliability of ball bearings. It reduces friction, prevents wear, dissipates heat, protects against corrosion, and contributes to smooth and efficient operation in various industrial and mechanical applications.


editor by CX 2024-05-14
China high quality Motorcycle Parts Bearing 6000/6001/6002/6003 Deep Groove Ball Bearing with Best Sales
Product Description
Product Description
BEARING INNER RING
A steel ball with a common steel ball or roller rolling on the outer surface of the inner ring.
RUBBER SEALAFTER CODE: RS 2RS Z ZZ
The sealing material is made of skeleton rubber and has good dust-proof effect, which can prevent any foreign matter from invading and dust and water in a harsh environment.
Main Features1.Bearing moves very Fast & Quiet, with very smooth hand feeling
2.High precision, long life, low noise
3.High-end technology
4.Good after-sales service
Company Profile
HangZhou CZPT Machinery Technology Co., Ltd is industry and trade company which modern enterprise integrating scientific research, development, manufacture and trading. Based on integrity, responsibility and cooperation, our company have professional R&D and sales team, providing one-stop service for customers. Our company mainly products is Bearing, Jack Hammer, Screw Air Compressor, Piston Air Compressor and Other Machinery Hardware Product etc.
After many years of production and research and development, we have obtained more than 20 national patents. The products are sold at home and abroad and are well received by customers. Our products sold at home and abroad, after get the self-managemert import and export rights, our products are exported to Vietnam, Indonesia, Philippines, Cambodia, Pakistan, Afghanistan and other countries and regions.
Application
Electric motors and generators
Agriculture
Material handling
Industrial transmissions
Food and beverage
Industrial pumps
Industrial fans
Two and 3 wheelers
Cars and light trucks
Packaging & Shipping
Customer feedback
FAQ
Q1: Are you factory or trade company?
A1: We are factory. And we have our own trading company.
Q2: What the exactly address of your factory?
A2: Our company is located in Xihu (West Lake) Dis. East Road, Xihu (West Lake) Dis. District, HangZhou, ZHangZhoug, China.
Q3: Will you provide some spare parts of the machines?
A3: Yes, of course.
Q4: What about the voltage of products? Can they be customized?
A4: Yes, of course. The voltage can be customized according to your equipment.
Q5: Which payment term can you accept?
A5: 30% T/T in advance, 70% T/T against the B/L copy.
Q6: Can you accept OEM orders?
A6: Yes, with professional design team, OEM orders are highly welcome.
Q7: Which trade term can you accept?
A7: Available trade terms: FOB, CIF, CFR, EXW, CPT, etc.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| After-sales Service: | Provided |
|---|---|
| Type: | Engine Bearing |
| Material: | Chrome Steel |
| Tolerance: | P0 |
| Clearance: | C2 |
| ABS: | Without ABS |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

What are the Challenges Associated with Noise Reduction in Ball Bearings?
Noise reduction in ball bearings is a crucial consideration, especially in applications where noise levels must be minimized for operational efficiency and user comfort. While ball bearings are designed to operate smoothly, there are several challenges associated with reducing noise in their operation:
- Vibration:
Vibration generated by the movement of rolling elements and raceways can lead to noise. Even minor irregularities in bearing components or the mounting system can cause vibration that translates into audible noise.
- Bearing Type and Design:
The type and design of the ball bearing can impact noise generation. For example, deep groove ball bearings are known for their quiet operation, while angular contact bearings can generate more noise due to their higher contact angles.
- Lubrication:
Improper or inadequate lubrication can result in increased friction and wear, leading to noise. Choosing the right lubricant and maintaining proper lubrication levels are essential for reducing noise in ball bearings.
- Bearing Clearance and Preload:
Incorrect clearance or preload settings can lead to noise issues. Excessive clearance or inadequate preload can cause the rolling elements to impact the raceways, resulting in noise during rotation.
- Material and Manufacturing Quality:
The quality of materials and manufacturing processes can affect noise levels. Inconsistent or low-quality materials, improper heat treatment, or manufacturing defects can lead to noise generation during operation.
- Surface Finish:
The surface finish of the rolling elements and raceways can impact noise. Rough surfaces can generate more noise due to increased friction and potential irregularities.
- Sealing and Shielding:
Seals and shields that protect bearings can influence noise levels. While they are necessary for contamination prevention, they can also cause additional friction and generate noise.
- Operating Conditions:
External factors such as temperature, speed, and load can influence noise levels. High speeds or heavy loads can amplify noise due to increased stress on the bearing components.
- Wear and Deterioration:
As ball bearings wear over time, noise levels can increase. Worn components or inadequate lubrication can lead to more significant noise issues as the bearing operates.
To address these challenges and reduce noise in ball bearings, manufacturers and engineers employ various techniques, such as optimizing design, selecting suitable bearing types, using proper lubrication, maintaining accurate preload settings, and ensuring high-quality materials and manufacturing processes. Noise reduction efforts are essential to improve overall product quality, meet noise regulations, and enhance user experience in various applications.

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?
Ceramic ball bearings and traditional steel ball bearings have distinct characteristics that can impact their performance in various applications. Here’s a comparison of how these two types of bearings differ in terms of performance:
- Material Composition:
Ceramic Ball Bearings:
Ceramic ball bearings use ceramic rolling elements, typically made from materials like silicon nitride (Si3N4) or zirconium dioxide (ZrO2). These ceramics are known for their high hardness, low density, and resistance to corrosion and wear.
Traditional Steel Ball Bearings:
Traditional steel ball bearings use steel rolling elements. The type of steel used can vary, but common materials include chrome steel (52100) and stainless steel (440C). Steel bearings are known for their durability and strength.
- Friction and Heat:
Ceramic Ball Bearings:
Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.
Traditional Steel Ball Bearings:
Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.
- Weight:
Ceramic Ball Bearings:
Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.
Traditional Steel Ball Bearings:
Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.
- Corrosion Resistance:
Ceramic Ball Bearings:
Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.
Traditional Steel Ball Bearings:
Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.
- Speed and Precision:
Ceramic Ball Bearings:
Ceramic bearings can operate at higher speeds due to their lower friction and ability to withstand higher temperatures. They are also known for their high precision and low levels of thermal expansion.
Traditional Steel Ball Bearings:
Steel bearings can operate at high speeds as well, but their heat generation may limit performance in certain applications. Precision steel bearings are also available but may have slightly different characteristics compared to ceramics.
- Cost:
Ceramic Ball Bearings:
Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.
Traditional Steel Ball Bearings:
Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.
In conclusion, ceramic ball bearings and traditional steel ball bearings offer different performance characteristics. Ceramic bearings excel in terms of low friction, heat generation, corrosion resistance, and weight reduction. Steel bearings are durable, cost-effective, and widely used in various applications. The choice between the two depends on the specific requirements of the application, such as speed, precision, corrosion resistance, and budget considerations.

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?
Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:
- Load Type and Magnitude:
Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.
- Speed and Operating Conditions:
Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.
- Accuracy and Precision:
For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.
- Space Limitations:
If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.
- Thrust and Radial Loads:
Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.
- Alignment and Misalignment:
If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.
- Mounting and Installation:
Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.
- Lubrication and Maintenance:
Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.
- Environmental Conditions:
Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.
- Bearing Material:
Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.
- Bearing Arrangement:
Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.
By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.


editor by CX 2024-05-14
China manufacturer China High Precision Ball Bearing Size Deep Groove Ball Bearing 689 manufacturer
Product Description
Product features
Deep groove ball bearing is a common rolling bearing, its inner ring and outer ring are both spherical, can bear radial and axial load, suitable for high-speed rotation and low noise occasions. The following are more introductions of deep groove ball bearings:
Structure type: The structure types of deep groove ball bearings include single-row, double-row and four-point contact and other types. Among them, single-row deep groove ball bearings are the most common, and the spherical raceway between the inner and outer rings enables the bearing to withstand radial and axial loads. Double-row deep groove ball bearings have a higher load capacity and are suitable for occasions that need to bear large radial and axial loads. Four-point contact deep groove ball bearings can withstand greater radial and axial loads, and can also withstand a certain tilting moment.
Material selection: The material selection of deep groove ball bearings includes steel, stainless steel, ceramics and other materials. Among them, steel deep groove ball bearings have good wear resistance and strength and are suitable for most industrial applications. Stainless steel deep groove ball bearings have good corrosion resistance and are suitable for humid and corrosive environments. Ceramic deep groove ball bearings have good wear resistance and corrosion resistance, and are suitable for high-speed rotation and high-temperature environments.
Dimensions: Deep groove ball bearings are available in various sizes, ranging from small to large. Generally speaking, the inner diameter of deep groove ball bearings ranges from 1 mm to 500 mm, the outer diameter ranges from 3 mm to 800 mm, and the thickness ranges from 1 mm to 200 mm. Appropriate size specifications can be selected according to the needs of different equipment.
Scope of application: deep groove ball bearings are widely used in mechanical equipment, automobiles, motors, instruments, household appliances and other fields. For example, deep groove ball bearings can be used between the rotor and stator in motors, in hubs and transmission systems in automobiles, in transmission systems and support systems in mechanical equipment, etc.
Advantages: Deep groove ball bearings have the advantages of simple structure, convenient use, wear resistance and low noise. At the same time, the contact area between the ball and the raceway of the deep groove ball bearing is small, so the friction coefficient is small, which can reduce energy loss and improve mechanical efficiency.
In short, deep groove ball bearings are a common rolling bearing with the advantages of simple structure, convenient use, wear resistance, low noise, etc., and are suitable for mechanical equipment, automobiles, motors, instruments, household appliances and other fields.
Company Profile
ZheJiang Jieyi Bearing Co., Ltd. is a more than 20-year history of bearing trading company. We are located in the biggest bearing town in China–Yiandian Town.
Our products include: Deep Groove Ball Bearings, Self-aligning Ball Bearings, Spherical Bearings, Tapered Roller Bearings, Cylindrical Roller Bearings, Needle Roller Bearings, Self-aligning Roller Bearings, Angular Contact Ball Bearings, Thrust Ball Bearings and Trust Roller Bearings and Special Bearings.
Jieyi Bearing also provides OEM service, such as bearing quality, noise level, grease brand, packing method, etc. We have enough OEM experience, and have a complete OEM manual for customer reference.
Products have been selling well in the American, French, Spanish, Austria, Italian, the U. A. E. Saudi, Pakistan, India, and Brizal markets.
With over 20 years′ experience in bearings market, Jieyi Bearing have built up good relationship with all of our customers and quality factory. We always get satisfactory feedback from our customers because of the high quality products and good OEM service. We always supply the quality, stable, economical bearings and proper technical services.
Jieyi Bearing has advanced quality testing and inspecting equipment, to guarantee product quality meets customers’ demand. Annually our company′s export over 10 million dollars.
To service dear customers at the fastest speed, we built a great Warehouse to stock bearings, so as to ship your required bearings fast. Inside of the bearing warehouse, there is all sourcing of bearing stock, with all kinds of bearings, over 10000 types.
Welcome to people of various enterprises with advance!
FAQ
Q: Are you trading company or manufacturer ?
A: We are factory and trading company.
Q: How long is your delivery time?
A: Within 7 days with stock. 15-30 days for 1 container to OEM brand following your request
Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample for free charge, freight cost need to be charged.
Q: What is your payment term?
A: We accept 30% TT advance ,70% balance against the bill loading copy. Also 100% L/C is ok.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Contact Angle: | 60° |
|---|---|
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Bearing Steel |
| Samples: |
US$ 0.01/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?
Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:
- Regular Lubrication:
Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.
- Clean Environment:
Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.
- Proper Installation:
Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.
- Regular Inspections:
Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.
- Temperature Monitoring:
Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.
- Correct Handling:
Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.
- Bearing Removal and Replacement:
Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.
- Alignment Maintenance:
Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.
- Training and Education:
Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.
- Documented Records:
Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.
By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

What are the Differences between Deep Groove Ball Bearings and Angular Contact Ball Bearings?
Deep groove ball bearings and angular contact ball bearings are two common types of ball bearings, each designed for specific applications and load conditions. Here are the key differences between these two types of bearings:
- Design and Geometry:
Deep Groove Ball Bearings:
Deep groove ball bearings have a simple design with a single row of balls that run along deep raceways in both the inner and outer rings. The rings are usually symmetrical and non-separable, resulting in a balanced load distribution.
Angular Contact Ball Bearings:
Angular contact ball bearings have a more complex design with two rows of balls, oriented at an angle to the bearing’s axis. This arrangement allows for the transmission of both radial and axial loads, making them suitable for combined loads and applications requiring high precision.
- Load Carrying Capacity:
Deep Groove Ball Bearings:
Deep groove ball bearings are primarily designed to carry radial loads. They can handle axial loads in both directions, but their axial load-carrying capacity is generally lower compared to angular contact ball bearings.
Angular Contact Ball Bearings:
Angular contact ball bearings are specifically designed to handle both radial and axial loads. The contact angle between the rows of balls determines the bearings’ axial load-carrying capacity. They can handle higher axial loads and are commonly used in applications with thrust loads.
- Contact Angle:
Deep Groove Ball Bearings:
Deep groove ball bearings have no defined contact angle, as the balls move in a deep groove along the raceways. They are primarily designed for radial loads.
Angular Contact Ball Bearings:
Angular contact ball bearings have a specified contact angle between the rows of balls. This contact angle allows them to carry both radial and axial loads and is crucial for their ability to handle combined loads.
- Applications:
Deep Groove Ball Bearings:
Deep groove ball bearings are commonly used in applications that primarily require radial loads, such as electric motors, pumps, and conveyor systems. They are also suitable for high-speed operation.
Angular Contact Ball Bearings:
Angular contact ball bearings are used in applications where both radial and axial loads are present, such as in machine tools, automotive wheel hubs, and aerospace components. They are especially useful for applications that require precise axial positioning and handling of thrust loads.
- Limitations:
Deep Groove Ball Bearings:
Deep groove ball bearings are not as suitable for handling significant axial loads and may experience skidding under certain conditions due to their deep raceways.
Angular Contact Ball Bearings:
Angular contact ball bearings can experience increased heat generation and wear at higher speeds due to the contact angle of the balls.
In summary, the design, load-carrying capacity, contact angle, and applications differ between deep groove ball bearings and angular contact ball bearings. Choosing the appropriate type depends on the specific load conditions and requirements of the application.

What is a Ball Bearing and How does it Function in Various Applications?
A ball bearing is a type of rolling-element bearing that uses balls to reduce friction between moving parts and support radial and axial loads. It consists of an outer ring, an inner ring, a set of balls, and a cage that separates and maintains a consistent spacing between the balls. Here’s how ball bearings function in various applications:
- Reduction of Friction:
Ball bearings function by replacing sliding friction with rolling friction. The smooth, spherical balls minimize the contact area between the inner and outer rings, resulting in lower friction and reduced heat generation.
- Radial and Axial Load Support:
Ball bearings are designed to support both radial loads (forces perpendicular to the shaft’s axis) and axial loads (forces parallel to the shaft’s axis). The distribution of balls within the bearing ensures load-carrying capacity in multiple directions.
- Smooth Rotational Movement:
Ball bearings facilitate smooth and precise rotational movement. The rolling motion of the balls allows for controlled and continuous rotation with minimal resistance.
- Applications in Machinery:
Ball bearings are used in a wide range of machinery and equipment, including motors, generators, gearboxes, conveyors, and fans. They enable the efficient transfer of motion while reducing wear and energy losses.
- Automotive Industry:
Ball bearings are extensively used in automobiles for various applications, including wheel hubs, transmission systems, steering mechanisms, and engine components. They provide reliability and durability in challenging automotive environments.
- Industrial Machinery:
In industrial settings, ball bearings support rotating shafts and ensure the smooth operation of equipment such as pumps, compressors, and machine tools.
- High-Speed Applications:
Ball bearings are suitable for high-speed applications due to their low friction and ability to accommodate rapid rotation. They are used in applications like electric motors and aerospace components.
- Precision Instruments:
For precision instruments, such as watches, cameras, and medical devices, ball bearings provide accurate rotational movement and contribute to the overall performance of the instrument.
- Variety of Sizes and Types:
Ball bearings come in various sizes, configurations, and materials to suit different applications. Different types include deep groove ball bearings, angular contact ball bearings, thrust ball bearings, and more.
In summary, ball bearings are essential components in a wide range of applications where smooth rotation, load support, and reduced friction are critical. Their versatility, reliability, and efficiency make them indispensable in industries spanning from automotive to industrial machinery to precision instruments.


editor by CX 2024-05-14
China supplier High Temperature Resistant Deep Groove Ball Bearing 6900zz wholesaler
Product Description
Product Description
Deep groove ball bearing is simple in structure and convenient in use. It is the bearing with the largest production scale and the widest application range. Widely used in automobiles, household appliances, machine tools, motors, pumps, agricultural machinery, textile machinery and many other fields.
Bearing is an important basic component of all kinds of mechanical equipment, and its accuracy, performance, life and reliability play a decisive role in the accuracy, performance, life and reliability of the host. In mechanical products, bearings belong to high-precision products, not only need the comprehensive support of mathematics, physics and many other disciplines, but also need material science, heat treatment technology, precision machining and measurement technology, numerical control technology and effective numerical methods and powerful computer technology and many other disciplines to serve, so bearing is a representative of the national scientific and technological strength of the product.
Detailed Photos
Features
1- Long service life
2- Strong carrying capacity
3- Good vibration resistance
Product Parameters
| Outer material | 420 stainless steel |
| Inner ring material | 420 stainless steel |
| Steel ball material | 440 stainless steel |
| Cage material | SUS 430 |
| Dust cover material | RS |
| Oil and grease | SRL |
| Precision | P0 P6 P5 |
| Clearance | 8-13 |
| Machinable material | Carbon steel/Ceramic /PEEK/PTFE/POM/PE/420 /440 /316 /306 /SUS630 |
If you need order the bearings, pls tell me the size and material, if you do not have it, pls reference below picture:
Other Products
Packaging & Shipping
FAQ
Q: Are you trading company or manufacturer ?
A: We are manufacturer.
Q: How to order ?
A: Normally you can order our products by using Made-in China platform or contacting representatives by Email.
After we receive your messages, we will help you to choose the right specifications and other inquiries.
Then we will send an proforma invoice to you via mail, it includes details of your order and our bank information.
After we received your payment by TT, we will ship your goods and we will send the invoice, packing list, and the express tracking number via mail.
Q: What is our term of trade ?
A: Usually we use EX WORKS. If you need other term of trade, please let us know.
Q: How to pay ?
A: We accept the payment by T/T (bank transfer) or pay through Made-in China platform.
Please inquire us about the details in advance.
Q: How are you going to deliver our goods ?
A: We can ship your goods either by air express (FedEx, DHL, UPS, TNT etc) or by sea.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Material: | Carbon Steel/Ceramic /Peek/PTFE/POM/PE/420 /440 /3 |
|---|---|
| Dust Cover Material: | RS |
| Oil and Grease: | SRL |
| Samples: |
US$ 1/Piece
1 Piece(Min.Order) | Order Sample Customed
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| Customization: |
Available
| Customized Request |
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
|
|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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What are the Challenges Associated with Noise Reduction in Ball Bearings?
Noise reduction in ball bearings is a crucial consideration, especially in applications where noise levels must be minimized for operational efficiency and user comfort. While ball bearings are designed to operate smoothly, there are several challenges associated with reducing noise in their operation:
- Vibration:
Vibration generated by the movement of rolling elements and raceways can lead to noise. Even minor irregularities in bearing components or the mounting system can cause vibration that translates into audible noise.
- Bearing Type and Design:
The type and design of the ball bearing can impact noise generation. For example, deep groove ball bearings are known for their quiet operation, while angular contact bearings can generate more noise due to their higher contact angles.
- Lubrication:
Improper or inadequate lubrication can result in increased friction and wear, leading to noise. Choosing the right lubricant and maintaining proper lubrication levels are essential for reducing noise in ball bearings.
- Bearing Clearance and Preload:
Incorrect clearance or preload settings can lead to noise issues. Excessive clearance or inadequate preload can cause the rolling elements to impact the raceways, resulting in noise during rotation.
- Material and Manufacturing Quality:
The quality of materials and manufacturing processes can affect noise levels. Inconsistent or low-quality materials, improper heat treatment, or manufacturing defects can lead to noise generation during operation.
- Surface Finish:
The surface finish of the rolling elements and raceways can impact noise. Rough surfaces can generate more noise due to increased friction and potential irregularities.
- Sealing and Shielding:
Seals and shields that protect bearings can influence noise levels. While they are necessary for contamination prevention, they can also cause additional friction and generate noise.
- Operating Conditions:
External factors such as temperature, speed, and load can influence noise levels. High speeds or heavy loads can amplify noise due to increased stress on the bearing components.
- Wear and Deterioration:
As ball bearings wear over time, noise levels can increase. Worn components or inadequate lubrication can lead to more significant noise issues as the bearing operates.
To address these challenges and reduce noise in ball bearings, manufacturers and engineers employ various techniques, such as optimizing design, selecting suitable bearing types, using proper lubrication, maintaining accurate preload settings, and ensuring high-quality materials and manufacturing processes. Noise reduction efforts are essential to improve overall product quality, meet noise regulations, and enhance user experience in various applications.

Are there any Industry Standards or Certifications that Ball Bearings should Meet?
Yes, there are several industry standards and certifications that ball bearings should meet to ensure their quality, performance, and reliability. These standards help manufacturers, engineers, and customers assess the suitability of bearings for specific applications. Some of the key standards and certifications for ball bearings include:
- ISO Standards:
The International Organization for Standardization (ISO) has developed a series of standards related to ball bearings. ISO 15 defines dimensions, boundary dimensions, and tolerances for radial bearings. ISO 281 specifies dynamic load ratings and calculation methods for bearings’ life calculations.
- ABEC (Annular Bearing Engineering Committee) Ratings:
ABEC ratings are commonly used in North America to indicate the precision and performance of ball bearings. Ratings range from ABEC 1 (lowest precision) to ABEC 9 (highest precision). However, it’s important to note that ABEC ratings focus primarily on dimensional tolerances and do not encompass all aspects of bearing quality.
- DIN Standards:
The German Institute for Standardization (Deutsches Institut für Normung, DIN) has published various standards related to ball bearings. DIN 625 covers dimensions for deep groove ball bearings, while DIN 616 provides guidelines for precision angular contact ball bearings.
- JIS (Japanese Industrial Standards):
JIS standards are used in Japan and internationally to define the characteristics and dimensions of various products, including ball bearings. JIS B 1512 outlines the classification and dimensions of rolling bearings.
- ASTM (American Society for Testing and Materials) Standards:
ASTM has standards that cover various aspects of bearing testing, performance, and materials. ASTM F2215, for instance, specifies the requirements for ball bearings used in surgical implants.
- CE Marking:
CE marking indicates that a product complies with European Union health, safety, and environmental requirements. It may be required for bearings used in machinery intended to be sold within the EU market.
- Industry-Specific Standards:
Various industries, such as aerospace, automotive, medical, and nuclear, have specific standards or certifications that bearings must meet to ensure safety, reliability, and compliance with industry-specific requirements.
- Quality Management Systems:
Manufacturers that adhere to quality management systems, such as ISO 9001, demonstrate their commitment to consistent product quality and customer satisfaction. Certification to these systems indicates that the manufacturing process follows established protocols and best practices.
When selecting ball bearings, it’s important to consider the relevant standards and certifications that align with the application’s requirements. This ensures that the bearings meet recognized quality and performance criteria, ultimately contributing to reliable and efficient operation.

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?
Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:
- Load Type and Magnitude:
Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.
- Speed and Operating Conditions:
Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.
- Accuracy and Precision:
For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.
- Space Limitations:
If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.
- Thrust and Radial Loads:
Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.
- Alignment and Misalignment:
If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.
- Mounting and Installation:
Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.
- Lubrication and Maintenance:
Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.
- Environmental Conditions:
Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.
- Bearing Material:
Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.
- Bearing Arrangement:
Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.
By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.


editor by CX 2024-05-10
China best Hot Selling Thin Wall 61802 61803 61804 61805 6802 6803 6804 6805 C3 Deep Groove Ball Bearings for Motorcycle Parts bearing driver
Product Description
PRODUCT PICTURES
OUR SERVICES
We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.
BEARING:
— Dimensions
— Material
— Tolerance standard
APPEARANCE:
— Logo (Laser Marking)
— Package Design
40+ YEARS EXPERIENCE
CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.
With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.
We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining. All of your goods, from the most economical category, to the highest rated category, will always be manufactured precisely to the standards you require.
OWN HEAT TREATMENT
CONTROALLABLE COST AND QUALITY.
Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials. Compared with other manufacturers, we can produce higher quality bearings at smaller cost, with a more flexible and controllable production schedule, and in a shorter time.
We have 6 heat treatment production lines.
Bearings are heated uniformly, with small deformation and little/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength.
OUTSTXIHU (WEST LAKE) DIS. QUALITY
LOW NOISE, LOW FRICTION AND LONG LIFE.
All our products are characterized by low noise, low friction and long life. This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.
Our products fully meets the requirements of national and international standards according to the testing result of roughness, roundness, hardness, vibration noise, vibration velocity.
PACKING
PACKAGING THAT HELPS SELL.
1, Inner package
Corrosion and Dust Proof PE plastic film / bag packing + Tube packing, or Wrapping tape for larger bearings.
2, Corrugated Individual Box
Our attractive sales-helpful “3-JOYS” package, or as the design of your package.
3, Outer package
Corrugated carton + Wooden pallet
MODERN WELL-ORGANIZED WAREHOUSE
· Constant temperature (20°C) and humidity (RH 52%) warehouse
· Hundreds of models on hand, short delivery time.
HONOR & SYSTEM CERTIFICATES
EXHIBITION
SAMPLES POLICY
FREE SAMPLES AND SHIPPING
We are happy to send you free samples of our bearings for field testing. All transportation costs will be paid by us.
Please note: Depending on the model and value of samples, this policy may not apply!
Please contact our sales staff for details.
TRANSPORTATION
FASTEST DELIVERY TO CUSTOMERS
CUSTOMERS FEEDBACK
PAYMENT TERMS
To facilitate your payment, we offer a variety of options!
FAQ
1, About the lead time.
This depends on several factors, like Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock? How many pcs of that model would be ordered?
Simply speaking, based on a 20′ GP container load:
| If the model your Preferred is | Sufficient stock | Lead Time |
| Regular models | YES | Within 7 days |
| Regular models | NO | Within 30 days |
| Non-regular model | NO | About 50 days |
For accurate estimate, please contact with our sale stuff. Thanks.
2, Minimum order quantity.
Even just ONE piece of bearing is ok for us.
3, If you don’t know which model is the right choice…
We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you to get proper and right models for your customers, so that you would make a better sales and income finally.
4, Factory Inspection
We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she/he will arrange that for you.
OPTIONS OF SPECIFICATION AND STHangZhouRD
| Subject | Symbol | Description |
| Sealing & Sealing type | Z | Metal shield on 1 side. |
| ZZ | Metal shields on both sides. | |
| RS | Rubber seal on 1 side. | |
| 2RS | Rubber seals on both sides. | |
| ZNR | Shield on 1 side, snap ring groove in the outer ring, with snap ring on the opposite side of the shield | |
| 2ZNR | Shield on both sides, snap ring groove in the outer ring, with snap ring | |
| ZNBR | Shield on 1 side, snap ring groove in the outer ring, with snap ring on the same side as the shield | |
| Vibration Velocity | V | Normal vibration level. Is not indicated as a standard. |
| V1 | Lower vibration level than normal. | |
| V2 | Lower vibration level than V1. | |
| V3 | Lower vibration level than V2. | |
| V4 | Lower vibration level than V3. | |
| Tolerances | P0(ABEC1) | Bearings in standard tolerance |
| P6(ABEC3) | Tighter tolerance than standard bearings | |
| P5(ABEC5) | Tolerance tighter than P6 | |
| P4(ABEC7) | Tolerance tighter than P5 | |
| P2(ABEC9) | Tolerance tighter than P4 | |
| Radial internal clearance | C1 | Smaller clearance than C2 |
| C2 | Smaller clearance than CN | |
| CN(C0) | Clearance than normal | |
| C3 | Clearance larger than CN | |
| C4 | Clearance larger than C3 | |
| C5 | Clearance larger than C4 | |
| Snap Ring Groove | N | Snap ring groove in the outer ring |
| NR | Snap ring groove in the outer ring, with snap ring | |
| N1 | One locating slot in 1 outer ring side face | |
| R | Flanged outer ring | |
| Other technical modifications | NR | Groove with inserted snap ring in outer ring. |
| N | Snap ring groove in the outer ring. | |
| SS | Stainless steel. |
| Cage Materials | J | Pressed steel cages |
| M | Solid brass cage | |
| F | Solid cage made from steel or iron | |
| Y | Pressed brass cages. | |
| T | Laminated phenolic cages. | |
| TN | Polyamide cages | |
| TH | Glass-fiber reinforced phenolic resin cages. | |
| TV | Polyamide cage | |
| Cage Designs | P | Window-type cage |
| H | Claw-type cage | |
| A | Cage guided on the bearing outer ring | |
| B | Cage-guided on the bearing inner ring | |
| S | Cage with lubricating slots in the guiding surfaces | |
| D | Carbonitriding cage | |
| W | Welded cage | |
| R | Riveted Cage | |
| Cage Types | N/A | Claw-type cage |
| Ribbon cage | ||
| Crown cage | ||
| Sunflower cage | ||
| Tapered cage |
PRODUCT PARAMETERS
This tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information.
| Designation | Boundary Dimension (mm) | Limiting Speed (rpm) | Load Rating (Kn) | Weight | ||||
| Designation | Inner Diameter (d) |
Outside Diameter (D) |
Width (B) |
Grease Lubrication | Oil Lubrication | Dynamic Load (cr) |
Static Load (cor) |
Weight (kg) |
| 61802 | 15 | 24 | 5 | 22000 | 30000 | 2.1 | 1.3 | 0.005 |
| 61803 | 17 | 25 | 5 | 20000 | 28000 | 2.2 | 1.5 | 0.007 |
| 61804 | 20 | 32 | 7 | 18000 | 24000 | 3.5 | 2.2 | 0.015 |
| 61805 | 25 | 37 | 7 | 16000 | 20000 | 4.3 | 2.9 | 0.017 |
| 61806 | 30 | 42 | 7 | 13000 | 17000 | 4.7 | 3.6 | 0.019 |
| 61807 | 35 | 47 | 7 | 11000 | 15000 | 4.9 | 4.0 | 0.571 |
| 61808 | 40 | 52 | 7 | 10000 | 13000 | 5.1 | 4.4 | 0.026 |
| 61809 | 45 | 58 | 7 | 9000 | 12000 | 6.4 | 5.6 | 0.03 |
| 61810 | 50 | 65 | 7 | 8500 | 10000 | 6.6 | 6.1 | 0.043 |
| 61811 | 55 | 72 | 9 | 8000 | 9500 | 9.1 | 8.4 | 0.07 |
| 61812 | 60 | 78 | 10 | 7000 | 8500 | 9.1 | 8.7 | 0.093 |
| 61813 | 65 | 85 | 10 | 6700 | 8000 | 11.9 | 11.5 | 0.13 |
| 61814 | 70 | 90 | 10 | 6300 | 7500 | 12.1 | 11.9 | 0.138 |
| 61815 | 75 | 95 | 10 | 6000 | 7000 | 12.7 | 14.3 | 0.15 |
| 61816 | 80 | 100 | 10 | 5600 | 6700 | 13 | 15 | 0.15 |
| 61817 | 85 | 110 | 13 | 5500 | 6500 | 18.5 | 19.5 | 0.27 |
| 61818 | 90 | 115 | 13 | 5100 | 6300 | 19 | 20.1 | 0.28 |
| 61819 | 95 | 120 | 13 | 5000 | 6000 | 19.3 | 20.4 | 0.3 |
| 61820 | 100 | 125 | 13 | 1679 | 1960 | 45.6 | 62.6 | 0.31 |
| 61821 | 105 | 130 | 13 | 1650 | 1900 | 49.5 | 65.3 | 0.32 |
| 61822 | 110 | 140 | 16 | 1596 | 1830 | 50.6 | 73.6 | 0.6 |
| 61824 | 120 | 150 | 16 | 1560 | 1780 | 58.7 | 76 | 0.65 |
| 61826 | 130 | 165 | 18 | 1500 | 1720 | 60.3 | 79.2 | 0.93 |
| 61828 | 140 | 175 | 18 | 1474 | 1688 | 65.5 | 81 | 0.99 |
| 61830 | 150 | 190 | 20 | 1446 | 1653 | 68.9 | 85 | 1.5 |
| 61832 | 160 | 200 | 20 | 1410 | 1648 | 70.4 | 88.2 | 1.45 |
| 61834 | 170 | 215 | 22 | 1395 | 1624 | 74.8 | 90.8 | 1.9 |
| 61836 | 180 | 225 | 24 | 1364 | 1613 | 78.4 | 99.4 | 2 |
| 61838 | 190 | 240 | 24 | 1343 | 1598 | 109.5 | 140.1 | 2.6 |
| 61840 | 200 | 250 | 24 | 1310 | 1590 | 114.4 | 141.1 | 2.38 |
| 61844 | 220 | 270 | 24 | 1277 | 1568 | 146.7 | 146.5 | 3 |
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Material: | Bearing Steel / Stainless Steel |
|---|---|
| Seals Options: | Z / 2z, Rz / 2rz, RS / 2RS, Rsz / Rzz, Zn / Znr / |
| Rows Number: | Single / Double |
| Tolerance: | P0 P6 P5 |
| MOQ: | One Pallet |
| Lubrication: | Grease or Oil |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

How does Preload Affect the Performance and Efficiency of Ball Bearings?
Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:
- Reduction of Internal Clearance:
Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.
- Increased Stiffness:
Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.
- Minimized Axial Play:
Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.
- Enhanced Rigidity:
The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.
- Reduction in Ball Slippage:
Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.
- Improved Running Accuracy:
Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.
- Optimized Performance at High Speeds:
Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.
- Impact on Friction and Heat Generation:
While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.
- Application-Specific Considerations:
The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.
Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?
Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:
- Effective Sealing:
Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.
- Clean Environment:
Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.
- Proper Handling:
Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.
- Clean Tools and Equipment:
Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.
- Contamination-Controlled Workstations:
Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.
- Proper Lubrication:
Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.
- Regular Inspections:
Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.
- Training and Education:
Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.
- Environmental Controls:
In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.
- Regular Cleaning and Maintenance:
Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.
- Selection of Suitable Bearings:
Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.
By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?
Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:
- Load Type and Magnitude:
Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.
- Speed and Operating Conditions:
Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.
- Accuracy and Precision:
For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.
- Space Limitations:
If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.
- Thrust and Radial Loads:
Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.
- Alignment and Misalignment:
If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.
- Mounting and Installation:
Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.
- Lubrication and Maintenance:
Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.
- Environmental Conditions:
Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.
- Bearing Material:
Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.
- Bearing Arrangement:
Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.
By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.


editor by CX 2024-05-09
China Good quality USA Popular Deep Groove Ball Bearing Auto Parts with Best Sales
Product Description
Specification
The type of deep groove ball Bearing 60 series component materials used automobile, tractor, machinery, motor, water pump, agricultural machinery and textile machinery. Its wide application, simple design, non – separation, suitable for high – speed, reliable operation, low maintenance costs.The tight consistency between deep raceway and groove and ball enables deep raceway ball bearings to withstand axial loads in both directions in addition to radial loads.
Product Parameters
Application
1. Automatic controlling machine
2. Semi-conductor industry
3. General industry machinery
4. Medical equipment
5. Solar energy equipment
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment, etc.
Packaging & Shipping
| Packaging Detail | 1.Industrial Exporting Package 2. Individual plastic/Carton/pallet 3. As the customers’ requirements |
| Delivery Detail | 30-45 days for normal order |
About us
HangZhou Kent bearing company was established in 2003 and is 1 of the leading bearing manufacturers and exporters in China. Kent specializes in the design and production of high precision, high speed and low noise groove ball bearings and pillow block bearings. At present, the Corporation has more than 1,000 employees, a fixed assets of 2 billion yuan, and produces 250 million sets of bearings annually. The Corporation’s products are widely used in more than 50 countries and regions under 2 independent brands, namely “BUGAO” and “NBKT”.
Research and Development
Since 2003, the Corporation has set up a Research & Development Center equipped with multiple laboratories used for precision measurement, mechanical testing, lifespan testing, and physicochemical testing, to continuously upgrade its skills and raise its manufacturing standard and product’s precision. Our workshops are installed with a series of advanced numerically-controlled, grinding and assembly equipment that utilize centralized filtration and cooling systems. Together with the production equipment suppliers, we developed these grinding, ultra-precision, fully automated integrated production lines, and own the intellectual property rights. The precision level of the products are at P5 level and above, with noise level CZPT Z4, V4 and above. Some of our projects have exceeded the 30% precision reserves. Our products are widely used in electric motors, automobiles, motorcycles, household appliances, textile, electric tools and water pump equipment industries, both locally and globally.
Why choose us?
▄ HangZhou Kent bearing Co.,Ltd established in 2003, has been focused on high precision and low noise deep groove ball bearing research and manufacturing. Engaged in foreign trade for 16 years, we provide products for many industrial fields. We attach important to global production, Not only won wideapresd praise in the domestic market, but also gain the recognition of foreign market, such as European,Southeast Asian and Africa market.
▄ The company has more than 20 assembly lines, and through ISO9001:2000 quality management system certification, has a professional technical and service team, technical personnel proportion of more than 30%. Over the years, we have been adhering to the use of high-end raw material production, from the first to every step, with excellent product development capabilities and strict quality control, we continue to expand the product line and application range.
▄ To learn from the advanced level at home and abroad, to create their own high-quality bearings, is the CZPT pursuit of Kent bearing company. Uphold the “True quality is more durable, let the bearing move more quieter”
business philosophy, we have received many customers good praise.
▄ Good Warranty we take customer satisfaction and product quality as the first priority for us, we supply reliable warranties and good after-sales services.
FAQ
1.Q: Are you a factory or trading company?
A: We are factory specialized in manufacturing and exporting bearings.
2.Q: Where is your factory located? How can I visit there?
A: Our factory located in HangZhou county, HangZhou city . You can fly to HangZhou Lishe International Airport directly. All our customers, from home or abroad,are warmly welcome to visit our factory.
3.Q: Do you provide samples ? it is free charge?
A: Yes, we could offer the sample for free charge but do not pay the cost of freight.
4.Q: What is your main product?
A: We are making 10 series and total about 100 types of bearings.
5.Q: What is the MOQ for bearings?
A: Our MOQ is 1000 pieces.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Noise Standard: | Zv1 Zv2 Zv3 |
|---|---|
| Precision Rating: | P0, P6, P5 |
| Stock: | Rich |
| Aligning: | Non-Aligning Bearing |
| Separated: | Unseparated |
| Rows Number: | Single |
| Samples: |
US$ 2/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?
Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:
- Regular Lubrication:
Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.
- Clean Environment:
Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.
- Proper Installation:
Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.
- Regular Inspections:
Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.
- Temperature Monitoring:
Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.
- Correct Handling:
Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.
- Bearing Removal and Replacement:
Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.
- Alignment Maintenance:
Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.
- Training and Education:
Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.
- Documented Records:
Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.
By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?
Ceramic ball bearings and traditional steel ball bearings have distinct characteristics that can impact their performance in various applications. Here’s a comparison of how these two types of bearings differ in terms of performance:
- Material Composition:
Ceramic Ball Bearings:
Ceramic ball bearings use ceramic rolling elements, typically made from materials like silicon nitride (Si3N4) or zirconium dioxide (ZrO2). These ceramics are known for their high hardness, low density, and resistance to corrosion and wear.
Traditional Steel Ball Bearings:
Traditional steel ball bearings use steel rolling elements. The type of steel used can vary, but common materials include chrome steel (52100) and stainless steel (440C). Steel bearings are known for their durability and strength.
- Friction and Heat:
Ceramic Ball Bearings:
Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.
Traditional Steel Ball Bearings:
Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.
- Weight:
Ceramic Ball Bearings:
Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.
Traditional Steel Ball Bearings:
Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.
- Corrosion Resistance:
Ceramic Ball Bearings:
Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.
Traditional Steel Ball Bearings:
Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.
- Speed and Precision:
Ceramic Ball Bearings:
Ceramic bearings can operate at higher speeds due to their lower friction and ability to withstand higher temperatures. They are also known for their high precision and low levels of thermal expansion.
Traditional Steel Ball Bearings:
Steel bearings can operate at high speeds as well, but their heat generation may limit performance in certain applications. Precision steel bearings are also available but may have slightly different characteristics compared to ceramics.
- Cost:
Ceramic Ball Bearings:
Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.
Traditional Steel Ball Bearings:
Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.
In conclusion, ceramic ball bearings and traditional steel ball bearings offer different performance characteristics. Ceramic bearings excel in terms of low friction, heat generation, corrosion resistance, and weight reduction. Steel bearings are durable, cost-effective, and widely used in various applications. The choice between the two depends on the specific requirements of the application, such as speed, precision, corrosion resistance, and budget considerations.

Can you Explain the Various Types of Ball Bearings and their Specific Use Cases?
Ball bearings come in various types, each designed to meet specific application requirements. Here’s an overview of the different types of ball bearings and their specific use cases:
- Deep Groove Ball Bearings:
Deep groove ball bearings are the most common and versatile type. They have a deep raceway that allows them to handle both radial and axial loads. They are used in a wide range of applications, including electric motors, household appliances, automotive components, and industrial machinery.
- Angular Contact Ball Bearings:
Angular contact ball bearings have a contact angle that enables them to handle both radial and axial loads at specific angles. They are suitable for applications where combined loads or thrust loads need to be supported, such as in machine tool spindles, pumps, and agricultural equipment.
- Self-Aligning Ball Bearings:
Self-aligning ball bearings have two rows of balls and are designed to accommodate misalignment between the shaft and the housing. They are used in applications where shaft deflection or misalignment is common, such as conveyor systems, textile machinery, and paper mills.
- Thrust Ball Bearings:
Thrust ball bearings are designed to support axial loads in one direction. They are commonly used in applications where axial loads need to be supported, such as in automotive transmissions, steering systems, and crane hooks.
- Single-Row vs. Double-Row Bearings:
Single-row ball bearings have a single set of balls and are suitable for moderate load and speed applications. Double-row ball bearings have two sets of balls and offer higher load-carrying capacity. Double-row designs are used in applications such as machine tool spindles and printing presses.
- Miniature and Instrument Ball Bearings:
Miniature ball bearings are smaller in size and are used in applications with limited space and lower load requirements. They are commonly used in small electric motors, medical devices, and precision instruments.
- Max-Type and Conrad Bearings:
Max-type ball bearings have a larger number of balls to increase load-carrying capacity. Conrad bearings have fewer balls and are used in applications with moderate loads and speeds.
- High-Precision Ball Bearings:
High-precision ball bearings are designed for applications where accuracy and precision are critical, such as machine tool spindles, aerospace components, and optical instruments.
- High-Speed Ball Bearings:
High-speed ball bearings are engineered to minimize friction and accommodate rapid rotation. They are used in applications such as dental handpieces, turbochargers, and centrifuges.
In summary, the various types of ball bearings are tailored to different application requirements, including load type, direction, speed, and environmental conditions. Selecting the appropriate type of ball bearing ensures optimal performance and longevity in specific applications.


editor by CX 2024-05-08
China Standard High Quality CZPT Brand CZPT High Speed Deep Groove Ball Bearing 16015-2z 16016-2z 16017-2z Long-Lived bearing assembly
Product Description
High quality brand CZPT High Speed Deep Groove Ball Bearing 16015-2Z 16016-2Z 16017-2Z Long-Lived
Bearing is an important part of contemporary machinery and equipment. Its main function is to support the mechanical rotating body, reduce the friction coefficient during its movement, and ensure its rotation accuracy. According to the different friction properties of the moving elements, bearings can be divided into rolling bearings and sliding bearings.
We can provide deep groove ball bearing,taper roller bearing,spherical roller bearing,angular contact ball bearing,needle bearing,self-aligning ball bearing,linear bearing,pillow block bearing,wheel hub bearing,thin wall bearing,ceramic bearing,and many famous brand bearings.
A wide range of applications:
• agriculture and forestry equipment
• automotive and industrial gearboxes
• automotive and truck electric components, such as alternators
• electric motors
• fluid machinery
• material handling
• power tools and household appliances
• textile machinery
• 2 Wheeler.
| Product Name | Deep Groove Ball Bearing |
| Brand Name | NTN/NSK/KOYO/NACHI/TIMKEN/IKO |
| Material | Chrome Steel ,Stainless steel,Ceramic,Nylon |
| Precision Grade | P0,P6,P5,P4,P2(ABEC1, ABEC3, ABEC5, ABEC7, ABEC9) |
| Greese | SRL ,PS2, Alvania R12 ,etc |
| Certifications | ISO 9001 |
| Package | Box,Carton,Wooden Box,Plastic Tube or Per buyers requirement . |
| MOQ | 2PCS |
| Serice | OEM |
| Sample | Available |
| Payment Term | TT or L/C or Western Union |
| Port | HangZhou/HangZhou/ZheJiang |
Product Parameters
| 6000 series deep groove ball bearings | ||||||
| Bearing No. | Boundary Dimensions(mm) | Basic Load Rating(N) | Weight(KG) | |||
| d | D | B | Cr | Cor | ||
| 604 | 4 | 12 | 4 | 960 | 350 | 0.571 |
| 605 | 5 | 14 | 5 | 1070 | 420 | 0.0037 |
| 606 | 6 | 17 | 6 | 1960 | 730 | 0.0069 |
| 607 | 7 | 19 | 6 | 2800 | 1060 | 0.0082 |
| 608 | 8 | 22 | 7 | 3290 | 1360 | 0.0129 |
| 609 | 9 | 24 | 7 | 3330 | 1410 | 0.016 |
| 6000 | 10 | 26 | 8 | 4160 | 1780 | 0.019 |
| 6001 | 12 | 28 | 8 | 5110 | 2380 | 0.571 |
| 6002 | 15 | 32 | 9 | 5590 | 2840 | 0.03 |
| 6003 | 17 | 35 | 10 | 6000 | 3250 | 0.039 |
| 6004 | 20 | 42 | 12 | 9390 | 5571 | 0.069 |
| 6005 | 25 | 47 | 12 | 10060 | 5860 | 0.08 |
| 6006 | 30 | 55 | 13 | 11900 | 7460 | 0.12 |
| 6007 | 35 | 62 | 14 | 16210 | 10420 | 0.16 |
| 6008 | 40 | 68 | 15 | 17030 | 11700 | 0.19 |
| 6009 | 45 | 75 | 16 | 21080 | 14780 | 0.25 |
| 6571 | 50 | 80 | 16 | 22000 | 16260 | 0.26 |
| 6011 | 55 | 90 | 18 | 31500 | 18400 | 0.39 |
| 6012 | 60 | 95 | 18 | 30000 | 23000 | 0.42 |
| 6013 | 65 | 100 | 18 | 32000 | 25000 | 0.44 |
| 6014 | 70 | 110 | 20 | 38000 | 31000 | 0.6 |
| 6015 | 75 | 115 | 20 | 38000 | 31000 | 0.64 |
| 6016 | 80 | 125 | 22 | 47500 | 40000 | 0.85 |
| 6017 | 85 | 130 | 22 | 47500 | 40000 | 0.89 |
| 6018 | 90 | 140 | 24 | 63800 | 59000 | 1.15 |
| 6019 | 95 | 145 | 24 | 66700 | 62300 | 1.2 |
| 6571 | 100 | 150 | 24 | 72500 | 70000 | 1.25 |
| 6200 Series Miniature Deep Groove Ball Bearing | ||||||
| Bearing No. | Boundary Dimensions(mm) | Basic Load Rating(N) | Weight(KG) | |||
| d | D | B | Cr | Cor | ||
| 624 | 4 | 13 | 5 | 1150 | 400 | 0.0032 |
| 625 | 5 | 16 | 5 | 1880 | 680 | 0.0051 |
| 626 | 6 | 19 | 6 | 2800 | 1060 | 0. |
| 627 | 7 | 22 | 7 | 3290 | 1360 | 0.0131 |
| 628 | 8 | 24 | 8 | 3330 | 1410 | 0.017 |
| 629 | 9 | 26 | 8 | 4160 | 1780 | 0.0191 |
| 6200 | 10 | 30 | 9 | 5110 | 2380 | 0.032 |
| 6201 | 12 | 32 | 10 | 6180 | 3060 | 0.037 |
| 6202 | 15 | 35 | 11 | 7450 | 3700 | 0.045 |
| 6203 | 17 | 40 | 12 | 9560 | 4780 | 0.065 |
| 6204 | 20 | 47 | 14 | 12840 | 6650 | 0.11 |
| 6205 | 25 | 52 | 15 | 14571 | 7930 | 0.13 |
| 6206 | 30 | 62 | 16 | 19460 | 11310 | 0.2 |
| 6207 | 35 | 72 | 17 | 25670 | 15300 | 0.29 |
| 6208 | 40 | 80 | 18 | 29520 | 181400 | 0.37 |
| 6209 | 45 | 85 | 19 | 32500 | 20400 | 0.41 |
| 6210 | 50 | 90 | 20 | 35000 | 32300 | 0.46 |
| 6211 | 55 | 100 | 21 | 43500 | 29200 | 0.61 |
| 6212 | 60 | 110 | 22 | 52500 | 36000 | 0.78 |
| 6213 | 65 | 120 | 23 | 57200 | 45710 | 0.99 |
| 6214 | 70 | 125 | 24 | 62000 | 44000 | 1.05 |
| 6215 | 75 | 130 | 25 | 66000 | 49500 | 1.2 |
| 6216 | 80 | 140 | 26 | 72500 | 53000 | 1.4 |
| 6217 | 85 | 150 | 28 | 83500 | 64000 | 1.8 |
| 6218 | 90 | 160 | 30 | 96000 | 71500 | 2.15 |
| 6219 | 95 | 170 | 32 | 109000 | 82000 | 2.6 |
| 6220 | 100 | 180 | 34 | 122000 | 93000 | 3.15 |
| 16000 | 16000-2Z | 61700 | 61800 | 61900 | 62200 | 62200-2Z | 62200-2RS1 | 62300 | 62300-2Z | 62300-2RS1 | |
| 16001 | 16001-2Z | 61701 | 61801 | 61901 | 62201 | 62201-2Z | 62201-2RS1 | 62301 | 62301-2RS1 | ||
| 16002 | 16002-2Z | 61702 | 61802 | 61902 | 62202 | 62202-2Z | 62202-2RS1 | 62302 | 62302-2RS1 | ||
| 16003 | 16003-2Z | 61703 | 61803 | 61903 | 62203 | 62203-2Z | 62203-2RS1 | 62303 | 62303-2RS1 | ||
| 16004 | 16004-2Z | 61704 | 61804 | 61904 | 62204 | 62204-2Z | 62204-2RS1 | 62304 | 62304-2RS1 | ||
| 16005 | 16005-2Z | 61705 | 61805 | 61905 | 62205 | 62205-2Z | 62205-2RS1 | 62305 | 62305-2RS1 | ||
| 16006 | 16006-2Z | 61706 | 61806 | 61906 | 62206 | 62206-2Z | 62206-2RS1 | 62306 | 62306-2RS1 | ||
| 16007 | 16007-2Z | 61707 | 61807 | 61907 | 62207 | 62207-2Z | 62207-2RS1 | 62307 | 62307-2RS1 | ||
| 16008 | 16008-2Z | 61708 | 61808 | 61908 | 62208 | 62208-2Z | 62208-2RS1 | 62308 | 62308-2RS1 | ||
| 16009 | 16009-2Z | 61709 | 61809 | 61909 | 62209 | 62209-2Z | 62209-2RS1 | 62309 | 62309-2RS1 | ||
| 16571 | 16571-2Z | 61710 | 61810 | 61910 | 62210 | 62210-2Z | 62210-2RS1 | 62310 | 62310-2RS1 | ||
| 16011 | 16011-2Z | 61811 | 61911 | 62211 | 62211-2Z | 62211-2RS1 | 62311 | 62311-2RS1 | |||
| 16012 | 16012-2Z | 61812 | 61912 | 62212 | 62212-2Z | 62212-2RS1 | 62312 | 62312-2RS1 | |||
| 16013 | 16013-2Z | 61813 | 61913 | 62213 | 62213-2Z | 62213-2RS1 | 62313 | 62313-2RS1 | |||
| 16014 | 16014-2Z | 61814 | 61914 | 62214 | 62214-2Z | 62214-2RS1 | 62314 | 62314-2RS1 | |||
| 16015 | 16015-2Z | 61815 | 61915 | ||||||||
| 16016 | 16016-2Z | 61816 | 61916 | ||||||||
| 16017 | 16017-2Z | 61817 | 61917 | ||||||||
| 16018 | 16018-2Z | 61818 | 61918 | ||||||||
| 16019 | 16019-2Z | 61819 | 61919 | ||||||||
| 16571 | 16571-2Z | 61820 | 61920 | ||||||||
| 16571 | 16571-2Z | 61821 | 61921 | ||||||||
| 16571 | 16571-2Z | 61822 | 61922 | ||||||||
| 16571 | 61824 | 61924 | |||||||||
| 16026 | 61826 | 61926 | |||||||||
| 16571 | 61828 | 61928 | |||||||||
| 16030 | 61830 | 61930 | |||||||||
| 16032 | 61832 | 61932 | |||||||||
| 16034 | 61834 | 61934 | |||||||||
| 16036 | 61836 | 61936 | |||||||||
| 16038 | 61838 | 61938 | |||||||||
| 16040 | 61840 | 61940 | |||||||||
| 16044 | 61844 | 61944 | |||||||||
| 16048 | 61848 | 61948 | |||||||||
| 16052 | 61852 | 61952 | |||||||||
| 16056 | 61856 | 61956 | |||||||||
| 16060 | 61860 | 61960 | |||||||||
| 16064 | 61864 | 61964 | |||||||||
| 16068 | 61868 | 61968 | |||||||||
| 16072 | 61872 | 61972 |
Packaging & Shipping
Company Profile
Our Advantages:
1. World-Class Bearing: We provide our customers with all types of indigenous bearing with world-class quality.
2. OEM or Non-Stand Bearings: Any requirement for Nonstandard bearings is Easily Fulfilled by us due to its vast knowledge and links in the industry.
3. Genuine products With Excellent Quality: The company has always proved the 100% quality products it provides with genuine intent.
4. After Sales Service and Technical Assistance: The company provides after-sales service and technical assistance as per the customer’s requirements and needs.
5. Quick Delivery: The company provides just-in-time delivery with its streamlined supply chain.
SAMPLES
1. Samples quantity: 1-10 PCS are available.
2. Free samples: It depends on the Model No., material and quantity. Some of the bearings samples need client to
pay samples charge and shipping cost.
3. It’s better to start your order with Trade Assurance to get full protection for your samples order.
CUSTOMIZED
The customized LOGO or drawing is acceptable for us.
MOQ
1. MOQ: 10 PCS standard bearings.
2. MOQ: 1000 PCS customized your brand bearings.
OEM POLICY
1. We can printing your brand (logo, artwork)on the shield or laser engraving your brand on the shield.
2. We can custom your packaging according to your design
3. All copyright own by clients and we promised don’t disclose any info.
FAQ
1.What is the minimum order quantity for this product?
Can be negotiated, we will try our best to meet customer needs.Our company is mainly based on wholesale sales,
most customers’orders are more than 1 ton.
2.What is your latest delivery time?
Most orders will be shipped within 7-15 days of payment being received.
3.Does your company have quality assurance?
Yes, for 1 years.
4.What is the competitiveness of your company’s products compared to other companies?
High precision, high speed, low noise.
5.What are the advantages of your company’s services compared to other companies?
Answer questions online 24 hours a day, reply in a timely manner, and provide various documents required by
customers for customs clearance or sales. 100% after-sales service.
6.Which payment method does your company support?
Do our best to meet customer needs, negotiable.
7.How to contact us quickly?
Please send us an inquiry or message and leave your other contact information, such as phone number,
account or account, we will contact you as soon as possible and provide the detailed information you need.
Please feel free to contact us, if you have any other question
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Aligning: | Non-Aligning Bearing |
|---|---|
| Separated: | Unseparated |
| Rows Number: | Single |
| Load Direction: | Radial Bearing |
| Material: | Bearing Steel |
| Contact Angle: | 0 |
| Samples: |
US$ 10/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Are there Specific Maintenance Practices to Ensure the Longevity of Ball Bearings?
Maintaining ball bearings is essential to ensure their longevity, reliable performance, and prevent premature failure. Proper maintenance practices can extend the lifespan of ball bearings and the equipment they are used in. Here are specific maintenance practices to consider:
- Regular Lubrication:
Implement a regular lubrication schedule using the appropriate lubricant for the application. Lubrication reduces friction, prevents wear, and helps dissipate heat. Follow manufacturer guidelines for lubricant type, quantity, and frequency.
- Clean Environment:
Keep the operating environment clean and free from contaminants. Dust, dirt, and debris can infiltrate bearings and cause damage. Use seals or shields to protect bearings from contaminants, especially in harsh environments.
- Proper Installation:
Ensure correct installation of bearings using proper tools and techniques. Improper installation can lead to misalignment, uneven load distribution, and premature wear. Follow manufacturer recommendations for installation procedures.
- Regular Inspections:
Perform routine visual inspections to check for signs of wear, damage, or contamination. Regular inspections can help identify issues early and prevent further damage. Pay attention to noise, vibration, and temperature changes.
- Temperature Monitoring:
Monitor bearing temperatures during operation using infrared thermometers or sensors. Abnormal temperature increases can indicate inadequate lubrication, misalignment, or other problems.
- Correct Handling:
Handle bearings with care to prevent damage during storage, transportation, and installation. Avoid dropping or subjecting them to impacts that can affect their internal components.
- Bearing Removal and Replacement:
Follow proper procedures when removing and replacing bearings. Use appropriate tools and techniques to avoid damage to the bearing or the surrounding components.
- Alignment Maintenance:
Maintain proper shaft and housing alignment to prevent excessive loads and wear on the bearing. Misalignment can lead to increased stress and premature failure.
- Training and Education:
Provide training to operators and maintenance personnel on proper bearing maintenance and handling practices. Educated personnel are more likely to identify issues and perform maintenance correctly.
- Documented Records:
Keep records of maintenance activities, inspections, lubrication schedules, and any issues encountered. This documentation helps track the bearing’s performance over time and informs future maintenance decisions.
By implementing these maintenance practices, you can ensure the longevity of ball bearings, minimize downtime, reduce operational costs, and maintain the reliability of the equipment they are a part of.

What Role do Seals and Shields Play in Protecting Ball Bearings from Dirt and Debris?
Seals and shields are critical components of ball bearings that play a crucial role in protecting them from dirt, debris, moisture, and contaminants in various applications. These protective features help maintain the integrity of the bearing’s internal components and ensure reliable operation. Here’s how seals and shields contribute to bearing protection:
- Contaminant Exclusion:
Seals and shields create a physical barrier between the external environment and the bearing’s interior. They prevent dust, dirt, water, and other contaminants from entering the bearing and coming into contact with the rolling elements and raceways.
- Lubrication Retention:
Seals and shields help retain lubrication within the bearing. They prevent the lubricant from escaping and contaminants from entering, ensuring that the bearing remains properly lubricated for smooth operation and reduced friction.
- Corrosion Prevention:
Seals and shields protect bearing components from exposure to moisture and corrosive substances. By preventing moisture ingress, they help extend the bearing’s lifespan by minimizing the risk of corrosion-related damage.
- Extended Bearing Life:
Seals and shields contribute to the overall longevity of the bearing by reducing wear and damage caused by contaminants. They help maintain a clean internal environment, which promotes proper rolling contact and minimizes the risk of premature failure.
- Enhanced Performance in Harsh Environments:
In applications exposed to harsh conditions, such as outdoor machinery or industrial settings, seals and shields are vital. They protect bearings from abrasive particles, chemicals, and extreme temperatures, ensuring reliable performance despite challenging conditions.
- Noise and Vibration Reduction:
Seals and shields can help reduce noise and vibration generated by the bearing. They provide additional damping and stability, contributing to smoother operation and enhanced user comfort in noise-sensitive applications.
- Customized Protection:
Manufacturers offer a variety of seal and shield designs to suit different application requirements. Some seals provide higher levels of protection against contamination, while others are designed for high-speed or high-temperature environments.
- Trade-Offs:
While seals and shields offer significant benefits, they can also introduce some friction due to contact with the bearing’s inner or outer ring. Engineers must balance the level of protection with the desired operating characteristics, considering factors like friction, speed, and environmental conditions.
Overall, seals and shields play a vital role in maintaining the integrity and performance of ball bearings. By effectively preventing contaminants from entering and preserving lubrication, they ensure the smooth and reliable operation of machinery and equipment in a wide range of applications.

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?
Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:
- Load Type and Magnitude:
Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.
- Speed and Operating Conditions:
Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.
- Accuracy and Precision:
For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.
- Space Limitations:
If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.
- Thrust and Radial Loads:
Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.
- Alignment and Misalignment:
If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.
- Mounting and Installation:
Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.
- Lubrication and Maintenance:
Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.
- Environmental Conditions:
Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.
- Bearing Material:
Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.
- Bearing Arrangement:
Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.
By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.


editor by CX 2024-05-08
China Professional Wj755 CZPT Bicycle Accessories Deep Groove Ball Bearing for Motorcycle Spare Part 624zz 628zz/2RS wheel bearing
Product Description
Product Description
WHY CHOOSE E-ASIA BEARING?
1) 20 years of rich bearing industry export experience
2) ISO & MPA & CE & SGS & BV certified
3) Professional engineers team and Superior machines
4) 1 hour to HangZhou port or ZheJiang port
5) Strict quality inspection (3 steps) before shipment, such as SGS/BV third party certified.
CHOOSE E-ASIA REFUSED ONE TIME BUSINESS
| Deep groove ball bearing | 5 88506 88507 88508A 88508 88509 622 62303 62304 62305 62306 62307 62308 62309 62310 |
| Taper roller bearings | 35712 35713 35714 35715 35716 35717 35718 35719 35710 35711 35712 35713 35714 35715 35716 35717 35718 35719 35710 35711 35712 35714 35716 35718 35710 35712 35714 35716 35710 35714 30302 30303 30304 30305 30306 30307 30308 3 3 0571 3 0571 3 0 30321 30322 30324 30326 30328 30330 30332 30334 32204 32205 32206 32207 32208 32209 32210 32211 32212 32213 32214 32215 32216 32217 32218 32219 32220 32221 32222 32224 32226 32228 32230 32232 32236 32238 32240 32244 32248 32303 32304 32305 32306 32307 32308 32309 32310 32311 32312 32313 32314 32315 32316 32317 32318 32319 32320 32321 32322 32324 32326 32330 32334 31303 31304 31305 31306 31307 31308 31309 31310 31311 31312 31313 31314 31315 31316 31317 31318 31319 31320 31324 31326 31328 31332 32 325714 320726 325718 53856k 53860 |
| Self-aligning ball bearings | |
| spherical plain bearing | GE4E GE5E GE6E GE8E GE10E GE12E GE15ES GE17ES GE20ES GE25ES GE30ES GE35ES GE40ES GE45ES GE50ES GE60ES GE70ES GE80ES GE90ES GE1 110145 120155 130170 140180 150190 165710 |
| Thrust ball bearing | 511 234415 234416 234417 234418 234419 234420 234421 234422 234424 234426 234428 234430 234432 234438 234440 234714 234715 234716 234717 234718 234719 234720 234721 234722 234722 347262 347282 347302 347322 347382 34740 |
| Cylindrical Roller Bearings | NU313EMA NU2313EMA NU2314EMA NU415EMA NU216EMA NU2216EMA NJ2216EMA NUP2216EMA NU316EMA NU2316EMA NU217EMA NU2217EMA NU317EMA NU2317EMA NJ2317EMA NU218EMA NJ218EMA NU2218EMA NJ2218EMA NUP2218EMA NU318EMA NJ318EMA NU2318EMA NJ2318EMA NU219EMA NJ219EMA NU2219EMA NJ2219EMA NU319EMA NJ319EMA NU2319EMA NJ2319EMA NU220EMA NJ220EMA NU2220EMA NJ2220EMA NU320EMA NJ320EMA NU2320EMA NJ2320EMA NU222EMA NJ222EMA NU2222EMA NJ2222EMA NU322EMA NJ322EMA NU2322EMA NJ2322EMA NU1571MA NU224EMA NJ224EMA NU2224EMA NJ2224EMA NU324EMA NJ324EMA NU2324EMA NJ2324EMA NU1026MA NU226EMA NJ226EMA NU2226EMA NJ2226EMA NU326EMA NJ326EMA NU2326EMA NJ2326EMA NU1571MA NU228EMA NJ228EMA NU2228EMA NJ2228EMA NU328EMA NJ328EMA NU2328EMA NJ2328EMA NU1030MA NU230EMA NJ230EMA NUP230EMA NU2230EMA NJ2230EMA N2230EMB NU330EMA NJ330EMA NU2330EMA NJ2330EMA NU1032MA NU232EMA NJ232EMA NUP232EMA NU2232EMA NJ2232EMA NU332EMA NJ332EMA NU2332EMA NJ2332EMA NU1034MA NU3034EMA NU234EMA NJ234EMA NU2234EMA NJ2234EMA NU334EMA NJ334EMA NU2334EMA NJ2334EMA NU1036MA NU236EMA NJ236EMA NU2236EMA NJ2236EMA NU336EMA NJ336EMA NU2336EM NJ2336EMA NU1038MA NU238EMA NJ238EMA NU2238EMA NJ2238EMA NU338EMA NJ338EMA NU2338EMA NJ2338EMA NU1040MA NU240EMA NJ240EMA NU2240EMA NJ2240EMA NU340EMA NJ340EMA NU2340EMA NJ2340EMA NU1044MA NJ1044MA NU3044EMA NU244EMA NJ244EMA NU2244EMA NJ2244EMA NU344EMA NJ344EMA NU2344EMA NJ2344EMA N2344EMB NU1048MA NU248EMA NJ248EMA NU348EMA NJ348EMA NU2348EMA NJ2348EMA NU1052MA NU3052MA NU252MA NUP252MA NU2252MA NU2352EMA NU1056MA NU1060MA NU1964MA NF2964EMB NU1064MA NU2264MA NF2968EMB NU1068MA NU3068EMA NU3168EMA NU2372EMA NU1072MA NU1076MA NJ2980EMA NU1080MA NU2080EMA NF2984EMB NU1088MA NU2088EMA NU3188EMA NJ2892EMA NF2992EMB NU3192EMA NU1096EMA NJ1096EMA NU31/500EMA NU18/560MA NU30/600EMA NU20/630EMA NU20/670EMA NU20/670EMA NU30/670EMA NJ28/710EMA NJ29/710MA NU20/750EMA NU20/800EMA NU20/850EMA NU39/900EMA NU20/900EMA NJ18/1120EMA105RU32 105RN32 105RJ32 105RF32 105RT32 170RU51 170RN51 170RJ51 170RF51 170RT51 170RU91 170RN91 170RJ91 170RF91 170RT91 170RU93 170RN93 170RJ93 170RF93 170RT93 180RU51 180RN51 180RJ51 180RF51 180RT51 180RU91 180RN91 180RJ91 180RF91 180RT91 190RU91 190RN91 190RJ91 190RF91 190RT91 190RU92 190RN92 190RJ92 190RF92 190RT92 200RU91 200RN91 200RJ91 200RF91 200RT91 200RU92 200RN92 200RJ92 200RF92 200RT92 210RU92 210RN92 210RJ92 210RF92 210RT92 220RU51 220RN51 220RJ51 220RF51 220RT51 220RU91 220RN91 220RJ91 220RF91 220RT91 220RU92 220RN92 220RJ92 220RF92 220RT92 240RU91 240RN91 240RJ91 240RF91 240RT91 250RU91 250RN91 250RJ91 250RF91 250RT91NCF2922V NCF2924V NCF2926V NCF2928V NCF2930V NCF2932V NCF2934V NCF2936V NCF2938V NCF1840V NCF2940V NCF1844V NCF2944V NCF1852V NCF2952V NCF2960V NCF1864V NCF2964V NCF1868V NCF1876V NCF2976V NCF1880V NCF1884V NCF1888V NCF1892V NCF2992V NCF2996V NCF18/500V NCF29/500V NCF18/530V NCF18/560V NCF18/600V NCF18/630V NCF18/670V NCF18/710V NCF18/750V NCF18/800VNNU4930MAW33 NNU4932MAW33 NNU4934MAW33 NNU4936MAW33 NNU4938MAW33 NNU4940MAW33 NNU4140MAW33 NNU4944MAW33 NNU4144MAW33 NNU4948MAW33 NNU4148MAW33 NNU4952MAW33 NNU4152MAW33 NNU4956MAW33 NNU4156MAW33 NNU4960MAW33 NNU4160MAW33 NNU4964MAW33 NNU4164MAW33 NNU4968MAW33 NNU4068MAW33 NNU4168MAW33 NNU4972MAW33 NNU4072MAW33 NNU4172MAW33 NNU4976MAW33 NNU4076MAW33 NNU4176MAW33 NNU4980MAW33 NNU4080MAW33 NNU4180MAW33 NNU4984MAW33 NNU4084MAW33 NNU4184MAW33 NNU4988MAW33 NNU4088MAW33 NNU4188MAW33 NNU4992MAW33 NNU4092MAW33 NNU4192MAW33 NNU4996MAW33 NNU4096MAW33 NNU4196MAW33 NNU49/500MAW33 NNU40/500MAW33 NNU49/530MAW33 NNU40/530MAW33 NNU49/560MAW33 NNU49/600MAW33 NNU49/630MAW33 NNU49/670MAW33 NNU40/670MAW33 NNU49/710MAW33 NNU49/750MAW33 NNU49/800MAW33 NNU49/850MAW33 NNU49/900MAW33 |
Company Profile
E-Asia was set up in 1996 and located at HangZhou, a beautiful city in China. Our company is bearing manufacturer and NSK CZPT CZPT CZPT CZPT HRB LYC NACHI C&U bearing distributor. We also provide OEM beaings.Since it was first established, E-AISA was dedicated in research, development and manufacture of bearings. Now, E-AISA has become main and 1 of the first grade suppliers of all kinds of bearings.
Our products include: Deep Groove Ball Bearings, Self-aligning Ball Bearings, Spherical Bearings, Tapered Roller Bearings,Cylindrical Roller Bearings, Needle Roller Bearings, Self-aligning Roller Bearings, Angular Contact Ball Bearings, Thrust Ball Bearings and Trust Roller Bearings and Special Bearings.
E-Asia is a backbone enterprise for bearing production in China. With an area of 60, 000 square meters, more than 260 sets devices and machines, and around 200 employees, our company annually turns out more than 6 million sets bearings.
Our Bearings are exported to the USA, Canada, UK, Germany, Poland, Italy, Russia, the Middle East, Africa and other countries and regions of the world. E-Asia Bearing Co. Ltd. Is committed to the introduction of high-quality bearing products. Our company have more than 200 employees.
Our brands include ZWZ bearings, CZPT bearings, CZPT bearings, CZPT bearings, CZPT bearings, CZPT bearings and so forth.
Our belief is “Specialization is quality; Quality is the future. Any product with 0.01% defect is 100% reject” is our quality policy.
Packaging & Shipping
FAQ
1.What is the minimum order quantity for this product?
Can be negotiated, we will try our best to meet customer needs.Our company is mainly based on wholesale sales, most customers’orders are more than 1 ton.
2.What is your latest delivery time?
Most orders will be shipped within 3-5 days of payment being received.
3.Does your company have quality assurance?
Yes, for 2 years.
4.What is the competitiveness of your company’s products compared to other companies?
High precision, high speed, low noise.
5.What are the advantages of your company’s services compared to other companies?
Answer questions online 24 hours a day, reply in a timely manner, and provide various documents required by customers for customs clearance or sales. 100% after-sales service.
6.Which payment method does your company support?
Do our best to meet customer needs, negotiable.
7.How to contact us quickly?
Please send us an inquiry or message and leave your other contact information, such as phone number, account or account, we will contact you as soon as possible and provide the detailed information you need.
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Type: | Auto Clutch Bearing |
|---|---|
| Material: | Chrome Steel |
| Tolerance: | P5 |
| Customization: |
Available
| Customized Request |
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.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}
| Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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|---|---|
|
Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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How does Preload Affect the Performance and Efficiency of Ball Bearings?
Preload is a crucial factor in ball bearing design that significantly impacts the performance, efficiency, and overall behavior of the bearings in various applications. Preload refers to the intentional axial force applied to the bearing’s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here’s how preload affects ball bearing performance:
- Reduction of Internal Clearance:
Applying preload reduces the internal clearance between the rolling elements and the raceways. This eliminates play within the bearing, ensuring that the rolling elements are in constant contact with the raceways. This reduced internal clearance enhances precision and reduces vibrations during operation.
- Increased Stiffness:
Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing’s ability to handle axial and radial loads with higher accuracy and minimal deflection.
- Minimized Axial Play:
Preload minimizes or eliminates axial play within the bearing. This is especially important in applications where axial movement needs to be minimized, such as machine tool spindles and precision instruments.
- Enhanced Rigidity:
The stiffness resulting from preload enhances the bearing’s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.
- Reduction in Ball Slippage:
Preload reduces the likelihood of ball slippage within the bearing, ensuring consistent contact between the rolling elements and the raceways. This leads to improved efficiency and better load distribution.
- Improved Running Accuracy:
Preloading enhances the running accuracy of the bearing, ensuring that it maintains precise rotational characteristics even under varying loads and speeds. This is essential for applications requiring high accuracy and repeatability.
- Optimized Performance at High Speeds:
Preload helps prevent skidding and slipping of the rolling elements during high-speed operation. This ensures that the bearing remains stable, reducing the risk of noise, vibration, and premature wear.
- Impact on Friction and Heat Generation:
While preload reduces internal clearance and friction, excessive preload can lead to higher friction and increased heat generation. A balance must be struck between optimal preload and minimizing friction-related issues.
- Application-Specific Considerations:
The appropriate amount of preload depends on the application’s requirements, such as load, speed, accuracy, and operating conditions. Over-preloading can lead to increased stress and premature bearing failure, while under-preloading may result in inadequate rigidity and reduced performance.
Overall, preload plays a critical role in optimizing the performance, accuracy, and efficiency of ball bearings. Engineers must carefully determine the right preload level for their specific applications to achieve the desired performance characteristics and avoid potential issues related to overloading or inadequate rigidity.

What Role do Seals and Shields Play in Protecting Ball Bearings from Dirt and Debris?
Seals and shields are critical components of ball bearings that play a crucial role in protecting them from dirt, debris, moisture, and contaminants in various applications. These protective features help maintain the integrity of the bearing’s internal components and ensure reliable operation. Here’s how seals and shields contribute to bearing protection:
- Contaminant Exclusion:
Seals and shields create a physical barrier between the external environment and the bearing’s interior. They prevent dust, dirt, water, and other contaminants from entering the bearing and coming into contact with the rolling elements and raceways.
- Lubrication Retention:
Seals and shields help retain lubrication within the bearing. They prevent the lubricant from escaping and contaminants from entering, ensuring that the bearing remains properly lubricated for smooth operation and reduced friction.
- Corrosion Prevention:
Seals and shields protect bearing components from exposure to moisture and corrosive substances. By preventing moisture ingress, they help extend the bearing’s lifespan by minimizing the risk of corrosion-related damage.
- Extended Bearing Life:
Seals and shields contribute to the overall longevity of the bearing by reducing wear and damage caused by contaminants. They help maintain a clean internal environment, which promotes proper rolling contact and minimizes the risk of premature failure.
- Enhanced Performance in Harsh Environments:
In applications exposed to harsh conditions, such as outdoor machinery or industrial settings, seals and shields are vital. They protect bearings from abrasive particles, chemicals, and extreme temperatures, ensuring reliable performance despite challenging conditions.
- Noise and Vibration Reduction:
Seals and shields can help reduce noise and vibration generated by the bearing. They provide additional damping and stability, contributing to smoother operation and enhanced user comfort in noise-sensitive applications.
- Customized Protection:
Manufacturers offer a variety of seal and shield designs to suit different application requirements. Some seals provide higher levels of protection against contamination, while others are designed for high-speed or high-temperature environments.
- Trade-Offs:
While seals and shields offer significant benefits, they can also introduce some friction due to contact with the bearing’s inner or outer ring. Engineers must balance the level of protection with the desired operating characteristics, considering factors like friction, speed, and environmental conditions.
Overall, seals and shields play a vital role in maintaining the integrity and performance of ball bearings. By effectively preventing contaminants from entering and preserving lubrication, they ensure the smooth and reliable operation of machinery and equipment in a wide range of applications.

What Factors should be Considered when Selecting a Ball Bearing for a Particular Application?
Selecting the right ball bearing for a specific application involves careful consideration of various factors to ensure optimal performance, longevity, and reliability. Here are the key factors that should be taken into account:
- Load Type and Magnitude:
Determine the type of load (radial, axial, or combined) and the magnitude of the load that the bearing will need to support. Choose a bearing with the appropriate load-carrying capacity to ensure reliable operation.
- Speed and Operating Conditions:
Consider the rotational speed of the application and the operating conditions, such as temperature, humidity, and exposure to contaminants. Different bearing types and materials are suited for varying speeds and environments.
- Accuracy and Precision:
For applications requiring high accuracy and precision, such as machine tool spindles or optical instruments, choose high-precision bearings that can maintain tight tolerances and minimize runout.
- Space Limitations:
If the application has limited space, choose miniature or compact ball bearings that can fit within the available dimensions without compromising performance.
- Thrust and Radial Loads:
Determine whether the application requires predominantly thrust or radial load support. Choose the appropriate type of ball bearing (thrust, radial, or angular contact) based on the primary load direction.
- Alignment and Misalignment:
If the application experiences misalignment between the shaft and housing, consider self-aligning ball bearings that can accommodate angular misalignment.
- Mounting and Installation:
Consider the ease of mounting and dismounting the bearing. Some applications may benefit from features like flanges or snap rings for secure installation.
- Lubrication and Maintenance:
Choose a bearing with appropriate lubrication options based on the application’s speed and temperature range. Consider whether seals or shields are necessary to protect the bearing from contaminants.
- Environmental Conditions:
Factor in the operating environment, including exposure to corrosive substances, chemicals, water, or dust. Choose materials and coatings that can withstand the specific environmental challenges.
- Bearing Material:
Select a bearing material that suits the application’s requirements. Common materials include stainless steel for corrosion resistance and high-carbon chrome steel for general applications.
- Bearing Arrangement:
Consider whether a single-row, double-row, or multiple bearings in a specific arrangement are needed to accommodate the loads and moments present in the application.
By carefully evaluating these factors, engineers and designers can choose the most suitable ball bearing that aligns with the specific demands of the application, ensuring optimal performance, durability, and overall operational efficiency.


editor by CX 2024-05-07
China best China 1688 Manufacturer in Stock 62 Serises 6236 6238 6240 Zz Deep Groove Ball Bearings for Auto Spare Parts wheel bearing
Product Description
PRODUCT PICTURES
OUR SERVICES
We can provide manufacturing capabilities and services of regular bearings for you, or customized non-standard bearings as you required.
BEARING:
— Dimensions
— Material
— Tolerance standard
APPEARANCE:
— Logo (Laser Marking)
— Package Design
40+ YEARS EXPERIENCE
CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.
With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.
We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining. All of your goods, from the most economical category, to the highest rated category, will always be manufactured precisely to the standards you require.
OWN HEAT TREATMENT
CONTROALLABLE COST AND QUALITY.
Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials. Compared with other manufacturers, we can produce higher quality bearings at smaller cost, with a more flexible and controllable production schedule, and in a shorter time.
We have 6 heat treatment production lines.
Bearings are heated uniformly, with small deformation and little/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength.
OUTSTXIHU (WEST LAKE) DIS. QUALITY
LOW NOISE, LOW FRICTION AND LONG LIFE.
All our products are characterized by low noise, low friction and long life. This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.
Our products fully meets the requirements of national and international standards accorind to the testing result of
roughness, roundness, hardness, vibration noise, vibration velocity.
PACKING
PACKAGING THAT HELPS SELL.
1, Inner package
Corrosion and Dust Proof PE plastic film / bag packing + Tube packing, or Wrapping tape for larger bearings.
2, Corrugated Individual Box
Our attractive sales-helpful “3-JOYS” package, or as the design of your package.
3, Outer package
Corrugated carton + Wooden pallet
MODERN WELL-ORGANIZED WAREHOUSE
· Constant temperature (20°C) and humidity (RH 52%) warehouse
· Hundreds of models on hand, short delivery time.
HONOR & SYSTEM CERTIFICATES
EXHIBITION
SAMPLES POLICY
FREE SAMPLES AND SHIPPING
We are happy to send you free samples of our bearings for field testing. All transportation costs will be paid by us.
Please note: Depending on the model and value of samples, this policy may not apply!
Please contact our sales staff for details.
TRANSPORTATION
FASTEST DELIVERY TO CUSTOMERS
CUSTOMERS FEEDBACK
PAYMENT TERMS
To facilitate your payment, we offer a variety of options!
FAQ
1, About the lead time.
This depends on several factors, like Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock? How many pcs of that model would be ordered?
Simply speaking, based on a 20′ GP container load:
| If the model your Preferred is | Sufficient stock | Lead Time |
| Regular models | YES | Within 7 days |
| Regular models | NO | Within 30 days |
| Non-regular model | NO | About 50 days |
For accurate estimate, please contact with our sale stuff. Thanks.
2, Minimum order quantity.
Even just ONE piece of bearing is ok for us.
3, If you don’t know which model is the right choice…
We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you to get proper and right models for your customers, so that you would make a better sales and income finally.
4, Factory Inspection
We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she/he will arrange that for you.
OPTIONS OF SPECIFICATION AND STHangZhouRD
| Subject | Symbol | Description |
| Sealing & Sealing type | Z | Metal shield on 1 side. |
| ZZ | Metal shields on both sides. | |
| RS | Rubber seal on 1 side. | |
| 2RS | Rubber seals on both sides. | |
| ZNR | Shield on 1 side, snap ring groove in the outer ring, with snap ring on the opposite side of the shield | |
| 2ZNR | Shield on both sides, snap ring groove in the outer ring, with snap ring | |
| ZNBR | Shield on 1 side, snap ring groove in the outer ring, with snap ring on the same side as the shield | |
| Vibration Velocity | V | Normal vibration level. Is not indicated as a standard. |
| V1 | Lower vibration level than normal. | |
| V2 | Lower vibration level than V1. | |
| V3 | Lower vibration level than V2. | |
| V4 | Lower vibration level than V3. | |
| Tolerances | P0(ABEC1) | Bearings in standard tolerance |
| P6(ABEC3) | Tighter tolerance than standard bearings | |
| P5(ABEC5) | Tolerance tighter than P6 | |
| P4(ABEC7) | Tolerance tighter than P5 | |
| P2(ABEC9) | Tolerance tighter than P4 | |
| Radial internal clearance | C1 | Smaller clearance than C2 |
| C2 | Smaller clearance than CN | |
| CN(C0) | Clearance than normal | |
| C3 | Clearance larger than CN | |
| C4 | Clearance larger than C3 | |
| C5 | Clearance larger than C4 | |
| Snap Ring Groove | N | Snap ring groove in the outer ring |
| NR | Snap ring groove in the outer ring, with snap ring | |
| N1 | One locating slot in 1 outer ring side face | |
| R | Flanged outer ring | |
| Other technical modifications | NR | Groove with inserted snap ring in outer ring. |
| N | Snap ring groove in the outer ring. | |
| SS | Stainless steel. |
| Cage Materials | J | Pressed steel cages |
| M | Solid brass cage | |
| F | Solid cage made from steel or iron | |
| Y | Pressed brass cages. | |
| T | Laminated phenolic cages. | |
| TN | Polyamide cages | |
| TH | Glass-fiber reinforced phenolic resin cages. | |
| TV | Polyamide cage | |
| Cage Designs | P | Window-type cage |
| H | Claw-type cage | |
| A | Cage guided on the bearing outer ring | |
| B | Cage-guided on the bearing inner ring | |
| S | Cage with lubricating slots in the guiding surfaces | |
| D | Carbonitriding cage | |
| W | Welded cage | |
| R | Riveted Cage | |
| Cage Types | N/A | Claw-type cage |
| Ribbon cage | ||
| Crown cage | ||
| Sunflower cage | ||
| Tapered cage |
PRODUCT PARAMETERS
This tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information.
| Designation | Boundary Dimension (mm) | Limiting Speed (rpm) | Load Rating (Kn) | Weight | ||||
| Designation | Inner Diameter (d) |
Outside Diameter (D) |
Width (B) |
Grease Lubrication | Oil Lubrication | Dynamic Load (cr) |
Static Load (cor) |
Weight (kg) |
| 6201 | 12 | 32 | 10 | 19000 | 24000 | 6.82 | 3.05 | 0.037 |
| 6202 | 15 | 35 | 11 | 18000 | 22000 | 7.65 | 3.72 | 0.045 |
| 6203 | 17 | 40 | 12 | 16000 | 20000 | 9.58 | 4.78 | 0.065 |
| 6204 | 20 | 47 | 14 | 14000 | 18000 | 12.8 | 6.65 | 0.106 |
| 6205 | 25 | 52 | 15 | 13000 | 15000 | 14 | 7.85 | 0.128 |
| 6206 | 30 | 62 | 16 | 11000 | 13000 | 19.5 | 11.3 | 0.199 |
| 6207 | 35 | 72 | 17 | 9200 | 11000 | 25.7 | 15.4 | 0.288 |
| 6208 | 40 | 80 | 18 | 8000 | 10000 | 29.5 | 18 | 0.368 |
| 6209 | 45 | 85 | 19 | 7000 | 9000 | 31.5 | 20.5 | 0.416 |
| 6210 | 50 | 90 | 20 | 6700 | 8500 | 35 | 23.2 | 0.463 |
| 6211 | 55 | 100 | 21 | 6000 | 7500 | 43.2 | 29.2 | 0.603 |
| 6212 | 60 | 110 | 22 | 5600 | 7000 | 47.8 | 32.8 | 0.789 |
| 6213 | 65 | 120 | 23 | 5000 | 6300 | 57.2 | 40 | 0.99 |
| 6214 | 70 | 125 | 24 | 4800 | 6000 | 60.8 | 45 | 1.084 |
| 6215 | 75 | 130 | 25 | 4500 | 5600 | 66 | 49.5 | 1.171 |
| 6216 | 80 | 140 | 26 | 4300 | 5300 | 71.5 | 54.2 | 1.448 |
| 6217 | 85 | 150 | 28 | 4000 | 5000 | 83.2 | 63.8 | 1.803 |
| 6218 | 90 | 160 | 30 | 3800 | 4800 | 95.8 | 71.5 | 2.17 |
| 6219 | 95 | 170 | 32 | 3600 | 4500 | 110 | 82.8 | 2.62 |
| 6220 | 100 | 180 | 34 | 3400 | 4300 | 122 | 92.8 | 3.19 |
| 6221 | 105 | 190 | 36 | 3200 | 4000 | 133 | 105 | 3.78 |
| 6222 | 110 | 200 | 38 | 3000 | 3800 | 144 | 117 | 4.42 |
| 6224 | 120 | 215 | 40 | 2600 | 3400 | 155 | 131 | 5.3 |
| 6226 | 130 | 230 | 40 | 2400 | 3200 | 165 | 148 | 6.12 |
| 6228 | 140 | 250 | 42 | 2000 | 2800 | 179 | 167 | 7.77 |
| 6230 | 150 | 270 | 45 | 1900 | 2600 | 203 | 199 | 9.78 |
| 6232 | 160 | 290 | 48 | 1800 | 2400 | 215 | 218 | 12.22 |
| 6234 | 170 | 310 | 52 | 1700 | 2200 | 245 | 260 | 15.241 |
| 6236 | 180 | 320 | 52 | 1600 | 2000 | 262 | 285 | 15.518 |
| 6238 | 190 | 340 | 55 | 1500 | 1900 | 285 | 322 | 18.691 |
| 6240 | 200 | 360 | 58 | 1400 | 1800 | 288 | 332 | 22.577 |
/* January 22, 2571 19:08:37 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Material Option 2: | Stainless Steel |
|---|---|
| MOQ: | One Pallet |
| Seals Options: | Z / 2z, Rz / 2rz, RS / 2RS, Rsz / Rzz, Zn / Znr / |
| Lubrication: | Grease or Oil |
| Cage: | SPCC, PA66, Copper, Stainless Steel |
| Seals: | Z / 2z, Rz / 2rz, RS / 2RS, Rsz / Rzz, Zn / Znr / |
| Samples: |
US$ 0/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

What are the Common Signs of Wear or Damage in Ball Bearings that Indicate the Need for Replacement?
Ball bearings are subjected to wear and stress during operation, and over time, they may exhibit signs of damage or deterioration that warrant replacement. Recognizing these signs is crucial to prevent catastrophic failure and ensure safe and reliable operation. Here are the common signs of wear or damage in ball bearings:
- Unusual Noise:
If you hear unusual grinding, clicking, or rumbling noises coming from the bearing during operation, it may indicate worn-out or damaged components. Unusual noise suggests that the bearing is no longer operating smoothly.
- Vibration:
Excessive vibration in the machinery can be a sign of bearing wear. Vibrations can result from uneven wear, misalignment, or damaged components within the bearing.
- Increased Temperature:
Higher operating temperatures than usual may indicate increased friction due to inadequate lubrication, wear, or other issues. Monitoring the bearing’s temperature can help identify potential problems.
- Irregular Movement:
If you notice irregular movement, jerking, or sticking during rotation, it could be a sign that the bearing is no longer operating smoothly. This may be due to damaged rolling elements or raceways.
- Reduced Performance:
If the machinery’s performance has decreased, it may be due to a compromised bearing. Reduced efficiency, increased energy consumption, or a decline in overall performance could be indicators of bearing wear.
- Visible Wear or Damage:
Inspect the bearing for visible signs of wear, such as pitting, scoring, or discoloration on the rolling elements or raceways. Severe wear or damage is a clear indication that the bearing needs replacement.
- Leakage or Contamination:
If there is evidence of lubricant leakage, contamination, or the presence of foreign particles around the bearing, it suggests that the seal or shield may be compromised, leading to potential damage.
- Looseness or Excessive Play:
If you can feel excessive play or looseness when manually moving the bearing, it could indicate worn-out components or misalignment.
- Reduced Lifespan:
If the bearing’s expected lifespan is significantly shorter than usual, it may be due to inadequate lubrication, excessive loads, or improper installation, leading to accelerated wear.
- Frequent Failures:
If the bearing is consistently failing despite regular maintenance and proper use, it could indicate a chronic issue that requires addressing, such as inadequate lubrication or misalignment.
It’s important to conduct regular inspections, monitor performance, and address any signs of wear or damage promptly. Replacing worn or damaged ball bearings in a timely manner can prevent further damage to machinery, reduce downtime, and ensure safe and efficient operation.

What Precautions should be taken to Prevent Contamination of Ball Bearings in Industrial Settings?
Preventing contamination of ball bearings is essential to ensure their proper function, longevity, and overall performance in industrial settings. Contaminants such as dust, dirt, debris, and particles can significantly impact bearing operation. Here are important precautions to take to prevent contamination of ball bearings:
- Effective Sealing:
Choose ball bearings with appropriate seals or shields to prevent the ingress of contaminants. Seals provide a physical barrier against dust, moisture, and particles, ensuring the bearing’s interior remains clean.
- Clean Environment:
Maintain a clean working environment around the machinery and equipment. Regularly clean the surrounding areas to prevent the accumulation of dirt and debris that could enter the bearings.
- Proper Handling:
Handle bearings with clean hands and use gloves if necessary. Avoid touching the bearing surfaces with bare hands, as natural skin oils can transfer contaminants onto the bearing.
- Clean Tools and Equipment:
Use clean tools and equipment during installation and maintenance to prevent introducing contaminants. Ensure that tools are properly cleaned before coming into contact with the bearing components.
- Contamination-Controlled Workstations:
Establish contamination-controlled workstations for bearing handling, installation, and maintenance. These areas should have proper ventilation, filtered air, and minimal exposure to external contaminants.
- Proper Lubrication:
Use the correct lubricant in appropriate quantities. Lubricants help create a barrier against contaminants and reduce friction. Regularly inspect and replenish lubrication to maintain its effectiveness.
- Regular Inspections:
Implement a routine inspection schedule to monitor the condition of the bearings. Look for signs of contamination, wear, and damage. Address any issues promptly to prevent further damage.
- Training and Education:
Train personnel on proper handling, installation, and maintenance practices to minimize the risk of contamination. Educated employees are more likely to take precautions and prevent accidental contamination.
- Environmental Controls:
In sensitive environments, such as clean rooms or medical facilities, implement strict environmental controls to minimize the presence of contaminants that could affect bearing performance.
- Regular Cleaning and Maintenance:
Perform regular cleaning and maintenance of machinery and equipment to prevent the buildup of contaminants. Keep bearings protected during maintenance to prevent debris from entering during the process.
- Selection of Suitable Bearings:
Choose bearings that are specifically designed for the application’s environmental conditions. Some bearings have advanced sealing options or specialized coatings that enhance contamination resistance.
By implementing these precautions, industries can significantly reduce the risk of contamination in ball bearings, ensuring smooth operation, extended bearing life, and enhanced equipment reliability.

What are the Primary Benefits of Using Ball Bearings in Machinery and Equipment?
Ball bearings offer several primary benefits when used in machinery and equipment. Their design and functionality provide advantages that contribute to the efficient and reliable operation of various applications. Here are the key benefits:
- Reduced Friction:
One of the primary benefits of ball bearings is their ability to minimize friction between moving parts. The rolling motion of the balls reduces the contact area and sliding friction, leading to smoother operation and less energy loss due to frictional heating.
- Efficient Load Support:
Ball bearings are engineered to support both radial and axial loads, making them versatile for applications with multidirectional forces. This load-bearing capability allows machinery to handle different types of loads while maintaining performance and stability.
- Smooth Rotation:
Ball bearings enable smooth and precise rotational movement. The rolling motion of the balls provides consistent motion with minimal resistance, ensuring that machinery operates smoothly and without jerks.
- High-Speed Capability:
Due to their low friction and efficient rolling action, ball bearings are suitable for high-speed applications. They allow machinery and equipment to achieve and maintain high rotational speeds without excessive wear or heat buildup.
- Reduced Wear and Maintenance:
The reduced friction in ball bearings leads to lower wear on components. This results in longer service intervals and reduced maintenance requirements, saving both time and maintenance costs.
- Energy Efficiency:
By minimizing friction and reducing energy losses, ball bearings contribute to the overall energy efficiency of machinery. This is particularly important in applications where energy consumption is a concern.
- Versatility:
Ball bearings come in various types, sizes, and configurations, allowing them to be used in a wide range of machinery and equipment. They can be customized to suit specific application requirements.
- Reliability and Longevity:
Ball bearings are designed to withstand heavy loads and harsh operating conditions. Their durability and resistance to wear ensure reliable performance and an extended operational life.
- Quiet Operation:
Ball bearings contribute to quiet machinery operation due to the smooth rolling motion of the balls. This is particularly important in applications where noise reduction is a consideration.
In summary, the primary benefits of using ball bearings in machinery and equipment include reduced friction, efficient load support, smooth rotation, high-speed capability, reduced wear and maintenance, energy efficiency, versatility, reliability, and quiet operation. These benefits collectively enhance the performance and longevity of machinery across various industries.


editor by CX 2024-05-07
China high quality China Factory Forklift Parts Deep Groove Ball Bearing 6304-2RS/C3 bearing bronze
Product Description
China Factory forklift parts Deep Groove Ball Bearing 6304-2RS/C3
Product Description
Our advantages:To provide the most suitable superior bearings for global customers
1. Provide different materials: stainless steel, bearing steel, carbon steel, ceramics, plastics
2. Provide different quality: ABEC9 ABEC7 ABEC5 ABEC3 ABEC0
3. Provide different brands:I .N. A S.K.F F.A.G NSK CZPT CZPT HCH EDINH
4. OEM services: LOGO customization, packaging customization,
According to the sizes of deep groove ball bearings can be divided into :
( 1 ) miniature bearings —- nominal diameter size range of 26mm below the bearing ;
( 2 ) small bearings —- nominal diameter size range of 28-55mm bearings ;
( 3 ) small and medium sized bearing —- nominal diameter size range of 60-115mm bearings ;
( 4) large bearing —- nominal diameter size range of 120-190mm bearing
( 5 ) Large bearing —- nominal diameter size range of 200-430mm bearings ;
( 6 ) large bearings —- nominal diameter size range of 440mm or more bearings.
Deep groove ball Applications:
Deep groove ball bearings can be used for transmission, instrumentation, motors, appliances,
internal combustion engines, transportation vehicles, agricultural machinery, construction machinery,
engineering machinery , roller skate style , yo-yo , precision instruments, low noise motors,
automobiles , motorcycles vehicles.
| designation | Dimensions | Mass | |||
| d | D | B | KG | ||
| 6204-RS | 6204-2RS | 20 | 47 | 14 | 0.103 |
| 6205-RS | 6205-2RS | 25 | 52 | 15 | 0.127 |
| 6206-RS | 6206-2RS | 30 | 62 | 16 | 0.203 |
| 6207-RS | 6207-2RS | 35 | 72 | 17 | 0.287 |
| 6208-RS | 6208-2RS | 40 | 80 | 18 | 0.367 |
| 6209-RS | 6209-2RS | 45 | 85 | 19 | 0.416 |
| 6210-RS | 6210-2RS | 50 | 90 | 20 | 0.462 |
| 6211-RS | 6211-2RS | 55 | 100 | 21 | 0.607 |
| 6212-RS | 6212-2RS | 60 | 110 | 22 | 0.783 |
| 6213-RS | 6213-2RS | 65 | 120 | 23 | 0.99 |
| 6214-RS | 6214-2RS | 70 | 125 | 24 | 1.1 |
| 6215-RS | 6215-2RS | 75 | 130 | 25 | 1.2 |
| 6216-RS | 6216-2RS | 80 | 140 | 26 | 1.4 |
| 6217-RS | 6217-2RS | 85 | 150 | 28 | 1.8 |
| 6218-RS | 6218-2RS | 90 | 160 | 30 | 2.15 |
| 6219-RS | 6219-2RS | 95 | 170 | 32 | 2.6 |
| 6220-RS | 6220-2RS | 100 | 180 | 34 | 3.2 |
| 6221-RS | 6221-2RS | 105 | 190 | 36 | 3.71 |
| 6222-RS | 6222-2RS | 110 | 200 | 38 | 4.44 |
| 6224-RS | 6224-2RS | 120 | 215 | 40 | 5.32 |
| 6226-RS | 6226-2RS | 130 | 230 | 40 | 6.13 |
| 6228-RS | 6228-2RS | 140 | 250 | 42 | 7.45 |
| 6230-RS | 6230-2RS | 150 | 270 | 45 | 9.4 |
| 6302-RS | 6302-2RS | 15 | 42 | 13 | 0.082 |
| 6303-RS | 6303-2RS | 17 | 47 | 14 | 0.115 |
| 6304-RS | 6304-2RS | 20 | 52 | 15 | 0.141 |
| 6305-RS | 6305-2RS | 25 | 62 | 17 | 0.219 |
| 6306-RS | 6306-2RS | 30 | 72 | 19 | 0.35 |
| 6307-RS | 6307-2RS | 35 | 80 | 21 | 0.454 |
| 6308-RS | 6308-2RS | 40 | 90 | 23 | 0.639 |
| 6309-RS | 6309-2RS | 45 | 100 | 25 | 0.836 |
| 6310-RS | 6310-2RS | 50 | 110 | 27 | 1.05 |
| 6311-RS | 6311-2RS | 55 | 120 | 29 | 1.35 |
| 6312-RS | 6312-2RS | 60 | 130 | 31 | 1.7 |
| 6313-RS | 6313-2RS | 65 | 140 | 33 | 2.1 |
| 6314-RS | 6314-2RS | 70 | 150 | 35 | 2.5 |
| 6315-RS | 6315-2RS | 75 | 160 | 37 | 3 |
| 6316-RS | 6316-2RS | 80 | 170 | 39 | 3.6 |
| 6317-RS | 6317-2RS | 85 | 180 | 41 | 4.25 |
| 6318-RS | 6318-2RS | 90 | 190 | 43 | 4.9 |
| N0. | Bore | O.D | Width | Chamfer | Load Rating | Maximuum Seed | Weight | ||
| mm | mm | mm | mm | Dynamic Cr |
Static Cor |
Grease r/min |
Oil r/min |
Kg/pcs | |
| 604 | 4 | 12 | 4 | 0.2 | 0.97 | 0.36 | 36000 | 44000 | 0.0571 |
| 605 | 5 | 14 | 5 | 0.2 | 1.33 | 0.505 | 32000 | 40000 | 0.0035 |
| 606 | 6 | 17 | 6 | 0.3 | 2.19 | 0.865 | 30000 | 38000 | 0.006 |
| 607 | 7 | 19 | 6 | 0.3 | 2.24 | 0.91 | 28000 | 36000 | 0.008 |
| 608 | 8 | 22 | 7 | 0.3 | 3.35 | 1.4 | 26000 | 34000 | 0.012 |
| 609 | 9 | 24 | 7 | 0.3 | 3.4 | 1.45 | 24000 | 32000 | 0.014 |
| 6000 | 10 | 26 | 8 | 0.3 | 4.55 | 1.96 | 22000 | 30000 | 0.019 |
| 6001 | 12 | 28 | 8 | 0.3 | 5.1 | 2.39 | 19000 | 26000 | 0.571 |
| 6002 | 15 | 32 | 9 | 0.3 | 5.6 | 2.83 | 18000 | 24000 | 0.03 |
| 6003 | 17 | 35 | 10 | 0.3 | 6.8 | 3.35 | 17000 | 22000 | 0.039 |
| 6004 | 20 | 42 | 12 | 0.6 | 9.4 | 5.05 | 15000 | 19000 | 0.069 |
| 6005 | 25 | 47 | 12 | 0.6 | 10.1 | 5.85 | 14000 | 18000 | 0.08 |
| 6006 | 30 | 55 | 13 | 0.6 | 13.2 | 8.3 | 12000 | 15000 | 0.116 |
| 6007 | 35 | 62 | 14 | 1.0 | 16 | 10.3 | 10000 | 14000 | 0.115 |
| 6008 | 40 | 68 | 15 | 1.0 | 16.8 | 11.5 | 8000 | 11000 | 0.19 |
|
N0. |
Bore | O.D | Width | Chamfer | Load Rating | Maximuum Seed | Weight | ||
| mm | mm | mm | mm | Dynamic Cr |
Static Cor |
Grease r/min |
Oil r/min |
Kg/pcs | |
| 624 | 4 | 13 | 5 | 0.2 | 1.15 | 0.4 | 36000 | 45000 | 0.0032 |
| 625 | 5 | 16 | 5 | 0.3 | 1.76 | 0.680 | 32000 | 40000 | 0.0050 |
| 626 | 6 | 19 | 6 | 0.3 | 2.34 | 0.885 | 28000 | 36000 | 0.0080 |
| 627 | 7 | 22 | 7 | 0.3 | 3.35 | 1.400 | 26000 | 34000 | 0.0130 |
| 628 | 8 | 24 | 8 | 0.3 | 4.00 | 1.590 | 24000 | 32000 | 0.0170 |
| 629 | 9 | 26 | 8 | 0.3 | 4.55 | 1.960 | 22000 | 30000 | 0.0190 |
| 6200 | 10 | 30 | 9 | 0.6 | 5.10 | 2.390 | 19000 | 26000 | 0.0300 |
| 6201 | 12 | 32 | 10 | 0.6 | 6.10 | 2.750 | 18000 | 24000 | 0.0360 |
| 6202 | 15 | 35 | 11 | 0.6 | 7.75 | 3.600 | 17000 | 22000 | 0.0460 |
| 6203 | 17 | 40 | 12 | 0.6 | 9.60 | 4.600 | 16000 | 20000 | 0.0650 |
| 6204 | 20 | 47 | 14 | 1.0 | 12.80 | 6.650 | 14000 | 18000 | 0.1070 |
| 6205 | 25 | 52 | 15 | 1.0 | 14.00 | 7.850 | 12000 | 16000 | 0.1250 |
| 6206 | 30 | 62 | 16 | 1.0 | 19.50 | 11.300 | 10000 | 13000 | 0.2571 |
|
N0. |
Bore | O.D | Width | Chamfer | Load Rating | Maximuum Seed | Weight | ||
| mm | mm | mm | mm | Dynamic Cr |
Static Cor |
Grease r/min |
Oil r/min |
Kg/pcs | |
| 6300 | 10 | 35 | 11 | 0.6 | 8.2 | 3.5 | 18000 | 24000 | 0.053 |
| 6301 | 12 | 37 | 12 | 1.0 | 9.7 | 4.2 | 17000 | 22000 | 0.06 |
| 6302 | 15 | 42 | 13 | 1.0 | 11.4 | 5.45 | 16000 | 20000 | 0.082 |
| 6303 | 17 | 47 | 14 | 1.0 | 13.5 | 6.55 | 15000 | 19000 | 0.115 |
| 6304 | 20 | 52 | 15 | 1.1 | 15.9 | 7.9 | 14000 | 17000 | 0.144 |
|
N0. |
Bore | O.D | Width | Chamfer | Load Rating | Maximuum Seed | Weight | ||
| mm | mm | mm | mm | Dynamic Cr |
Static Cor |
Grease r/min |
Oil r/min |
Kg/pcs | |
| 685 | 5 | 11 | 3 | 0.15 | 0.715 | 0.282 | 35000 | 45000 | 0.0011 |
| 686 | 6 | 13 | 3.5 | 0.15 | 1.08 | 0.44 | 33000 | 42000 | 0.0019 |
| 687 | 7 | 14 | 3.5 | 0.15 | 1.17 | 0.505 | 31000 | 40000 | 0.0571 |
| 688 | 8 | 16 | 4 | 0.2 | 1.61 | 0.715 | 29000 | 38000 | 0.0031 |
| 689 | 9 | 17 | 4 | 0.2 | 1.72 | 0.82 | 28000 | 36000 | 0.0032 |
| 6800 | 10 | 19 | 5 | 0.3 | 1.83 | 0.925 | 26000 | 34000 | 0.005 |
| 6801 | 12 | 21 | 5 | 0.3 | 1.92 | 1.04 | 22000 | 30000 | 0.006 |
| 6802 | 15 | 24 | 5 | 0.3 | 2.08 | 1.26 | 20000 | 28000 | 0.007 |
| 6803 | 17 | 26 | 5 | 0.3 | 2.23 | 1.46 | 19000 | 26000 | 0.008 |
| 6804 | 20 | 32 | 7 | 0.3 | 4 | 2.47 | 17000 | 22000 | 0.019 |
| 6805 | 25 | 37 | 7 | 0.3 | 4.3 | 2.95 | 15000 | 19000 | 0.571 |
| 6806 | 30 | 42 | 7 | 0.3 | 4.7 | 3.65 | 13000 | 17000 | 0.026 |
| 6807 | 35 | 47 | 7 | 0.3 | 4.9 | 4.05 | 11000 | 15000 | 0.571 |
|
N0. |
Bore | O.D | Width | Chamfer | Load Rating | Maximuum Seed | Weight | ||
| mm | mm | mm | mm | Dynamic Cr |
Static Cor |
Grease r/min |
Oil r/min |
Kg/pcs | |
| 693 | 3 | 8 | 3 | 0.15 | 0.56 | 0.18 | 44000 | 52000 | 0.0006 |
| 694 | 4 | 11 | 4 | 0.15 | 0.715 | 0.276 | 38000 | 47000 | 0.0018 |
| 695 | 5 | 13 | 4 | 0.2 | 1.08 | 0.43 | 34000 | 43000 | 0.0571 |
| 696 | 6 | 15 | 5 | 0.2 | 1.35 | 0.53 | 32000 | 40000 | 0.0038 |
| 697 | 7 | 17 | 5 | 0.3 | 1.61 | 0.715 | 30000 | 38000 | 0.0052 |
| 698 | 8 | 19 | 6 | 0.3 | 1.99 | 0.865 | 28000 | 36000 | 0.0073 |
| 690 | 9 | 20 | 6 | 0.3 | 2.48 | 1.09 | 27000 | 34000 | 0.0082 |
| 6900 | 10 | 22 | 6 | 0.3 | 2.7 | 1.27 | 25000 | 32000 | 0.009 |
| 6901 | 12 | 24 | 6 | 0.3 | 2.89 | 1.46 | 20000 | 28000 | 0.011 |
| 6902 | 15 | 28 | 7 | 0.3 | 3.65 | 2 | 19000 | 26000 | 0.016 |
| 6903 | 17 | 30 | 7 | 0.3 | 4.65 | 2.58 | 18000 | 24000 | 0.018 |
| 6904 | 20 | 37 | 9 | 0.3 | 6.4 | 3.7 | 17000 | 22000 | 0.036 |
| 6905 | 25 | 42 | 9 | 0.3 | 7.05 | 4.55 | 14000 | 18000 | 0.042 |
| 6906 | 30 | 47 | 9 | 0.3 | 7.25 | 5 | 12000 | 16000 | 0.048 |
| 6907 | 35 | 55 | 10 | 0.3 | 9.55 | 6.85 | 10000 | 14000 | 0.074 |
Detailed Photos
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| Seals Type: | Zz 2RS Open |
|---|---|
| Precision Rating: | P0 P4 P5 P6 |
| Structure: | Ball Bearing |
| Clearance: | C0 C2 C3 C4 C5 |
| Vibration: | Z1V1 Z2V2 Z3V3 Z4V4 |
| Type: | Ball |
| Samples: |
US$ 0.1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

Can you Provide Examples of Industries where Ball Bearings are Crucial Components?
Ball bearings are essential components in a wide range of industries where smooth motion, load support, and precision are vital. Here are some examples of industries where ball bearings play a crucial role:
- Automotive Industry:
Ball bearings are used in various automotive applications, including wheel hubs, transmissions, engines, steering systems, and suspension components. They provide reliable rotation and support in both passenger vehicles and commercial vehicles.
- Aerospace Industry:
In the aerospace sector, ball bearings are found in aircraft engines, landing gear systems, control surfaces, and avionics equipment. Their ability to handle high speeds and precision is vital for aviation safety.
- Industrial Machinery:
Ball bearings are integral to a wide range of industrial machinery, including pumps, compressors, conveyors, machine tools, printing presses, and textile machinery. They facilitate smooth operation and load distribution in these diverse applications.
- Medical Equipment:
In medical devices and equipment, ball bearings are used in surgical instruments, imaging equipment, dental tools, and laboratory machinery. Their precision and smooth movement are crucial for accurate diagnostics and treatments.
- Robotics and Automation:
Ball bearings are key components in robotic arms, automation systems, and manufacturing machinery. They enable precise movement, high-speed operation, and reliable performance in automated processes.
- Renewable Energy:
Wind turbines and solar tracking systems utilize ball bearings to enable efficient rotation and tracking of the wind blades and solar panels. Ball bearings withstand the dynamic loads and environmental conditions in renewable energy applications.
- Marine and Shipbuilding:
Ball bearings are used in marine applications such as ship propulsion systems, steering mechanisms, and marine pumps. They withstand the corrosive environment and provide reliable performance in maritime operations.
- Heavy Equipment and Construction:
In construction machinery like excavators, bulldozers, and cranes, ball bearings support the movement of heavy loads and enable efficient operation in demanding environments.
- Electronics and Consumer Appliances:
Consumer electronics like electric motors, computer hard drives, and household appliances rely on ball bearings for smooth motion and reliable operation.
- Oil and Gas Industry:
In oil and gas exploration and extraction equipment, ball bearings are used in drilling rigs, pumps, and processing machinery. They handle the high loads and harsh conditions of this industry.
These examples demonstrate how ball bearings are indispensable components in various industries, contributing to the efficiency, reliability, and functionality of diverse mechanical systems and equipment.

How do Ceramic Ball Bearings Compare to Traditional Steel Ball Bearings in Terms of Performance?
Ceramic ball bearings and traditional steel ball bearings have distinct characteristics that can impact their performance in various applications. Here’s a comparison of how these two types of bearings differ in terms of performance:
- Material Composition:
Ceramic Ball Bearings:
Ceramic ball bearings use ceramic rolling elements, typically made from materials like silicon nitride (Si3N4) or zirconium dioxide (ZrO2). These ceramics are known for their high hardness, low density, and resistance to corrosion and wear.
Traditional Steel Ball Bearings:
Traditional steel ball bearings use steel rolling elements. The type of steel used can vary, but common materials include chrome steel (52100) and stainless steel (440C). Steel bearings are known for their durability and strength.
- Friction and Heat:
Ceramic Ball Bearings:
Ceramic bearings have lower friction coefficients compared to steel bearings. This results in reduced heat generation during operation, contributing to higher efficiency and potential energy savings.
Traditional Steel Ball Bearings:
Steel bearings can generate more heat due to higher friction coefficients. This can lead to increased energy consumption in applications where efficiency is crucial.
- Weight:
Ceramic Ball Bearings:
Ceramic bearings are lighter than steel bearings due to the lower density of ceramics. This weight reduction can be advantageous in applications where minimizing weight is important.
Traditional Steel Ball Bearings:
Steel bearings are heavier than ceramic bearings due to the higher density of steel. This weight may not be as critical in all applications but could impact overall equipment weight and portability.
- Corrosion Resistance:
Ceramic Ball Bearings:
Ceramic bearings have excellent corrosion resistance, making them suitable for applications in corrosive environments, such as marine or chemical industries.
Traditional Steel Ball Bearings:
Steel bearings are susceptible to corrosion, especially in harsh environments. Stainless steel variants offer improved corrosion resistance but may still corrode over time.
- Speed and Precision:
Ceramic Ball Bearings:
Ceramic bearings can operate at higher speeds due to their lower friction and ability to withstand higher temperatures. They are also known for their high precision and low levels of thermal expansion.
Traditional Steel Ball Bearings:
Steel bearings can operate at high speeds as well, but their heat generation may limit performance in certain applications. Precision steel bearings are also available but may have slightly different characteristics compared to ceramics.
- Cost:
Ceramic Ball Bearings:
Ceramic bearings are generally more expensive to manufacture than steel bearings due to the cost of ceramic materials and the challenges in producing precision ceramic components.
Traditional Steel Ball Bearings:
Steel bearings are often more cost-effective to manufacture, making them a more economical choice for many applications.
In conclusion, ceramic ball bearings and traditional steel ball bearings offer different performance characteristics. Ceramic bearings excel in terms of low friction, heat generation, corrosion resistance, and weight reduction. Steel bearings are durable, cost-effective, and widely used in various applications. The choice between the two depends on the specific requirements of the application, such as speed, precision, corrosion resistance, and budget considerations.

What are the Different Components that Make up a Typical Ball Bearing?
A typical ball bearing consists of several essential components that work together to reduce friction and support loads. Here are the main components that make up a ball bearing:
- Outer Ring:
The outer ring is the stationary part of the bearing that provides support and houses the other components. It contains raceways (grooves) that guide the balls’ movement.
- Inner Ring:
The inner ring is the rotating part of the bearing that attaches to the shaft. It also contains raceways that correspond to those on the outer ring, allowing the balls to roll smoothly.
- Balls:
The spherical balls are the rolling elements that reduce friction between the inner and outer rings. Their smooth rolling motion enables efficient movement and load distribution.
- Cage or Retainer:
The cage, also known as the retainer, maintains a consistent spacing between the balls. It prevents the balls from touching each other, reducing friction and preventing jamming.
- Seals and Shields:
Many ball bearings include seals or shields to protect the internal components from contaminants and retain lubrication. Seals provide better protection against contaminants, while shields offer less resistance to rotation.
- Lubricant:
Lubrication is essential to reduce friction, wear, and heat generation. Bearings are typically filled with lubricants that ensure smooth movement between the balls and raceways.
- Flanges and Snap Rings:
In some designs, flanges or snap rings are added to help position and secure the bearing in its housing or on the shaft. Flanges prevent axial movement, while snap rings secure the bearing radially.
- Raceways:
Raceways are the grooved tracks on the inner and outer rings where the balls roll. The shape and design of the raceways influence the bearing’s load-carrying capacity and performance.
- Anti-Friction Shield:
In certain high-speed applications, a thin anti-friction shield can be placed between the inner and outer rings to minimize friction and heat generation.
These components work together to enable the smooth rolling motion, load support, and reduced friction that characterize ball bearings. The proper design and assembly of these components ensure the bearing’s optimal performance and longevity in various applications.


editor by CX 2024-05-07