Product Description
Product Description
Deep Groove Ball bearing
Main Dimensions & Performance Data
| d |
25 mm |
Bore diameter |
| D |
37 mm |
Outside diameter |
| B |
7 mm |
Width |
| Cr |
10.600 N |
Basic dynamic load rating, radial |
| C0r |
5.000 N |
Basic static load rating, radial |
| Cur |
340 N |
Fatigue load limit, radial |
| nG |
15.300 1/min |
Limiting speed |
| ≈m |
0,571 kg |
Weight |
Mounting dimensions
| da min |
23,2 mm |
Minimum diameter shaft shoulder |
| Da max |
38,8 mm |
Maximum diameter of housing shoulder |
| ra max |
0,6 mm |
Maximum fillet radius |
Dimensions
| rmin |
0,6 mm |
Minimum chamfer dimension |
| D1 |
35,45 mm |
Shoulder diameter outer ring |
| D2 |
37,38 mm |
Caliber diameter outer ring |
| d1 |
26,55 mm |
Shoulder diameter inner ring |
| d2 |
25,38 mm |
Caliber diameter inner ring |
Temperature range
| Tmin |
-20 °C |
Operating temperature min. |
| Tmax |
100 °C |
Operating temperature max. |
Calculation factors
| f0 |
13,8 |
Calculation factor |
Key Features
2RS bearing and ZZ bearing are Precision Metric Ball Bearing manufactured with both sides rubber sealed and shield and is pre-lubricated with Grease allowing it to be ready for use upon delivery. It is a Chrome Steel Metric Ball Bearing that can withstand both moderate radial and axial loads while providing high performance. Our 6000 Series Extra Light Duty Ball Bearings are available either Open, Metal Shielded, or with Rubber Sealed Closures and are pre-lubricated with grease or light oil.
Applications / Industries
Metric Ball Bearings are used in a range of applications and are ideal for limited space applications including Robotics, Vacuum Cleaners, Small Spindles, Dental Drills, Surgical Saws, Cordless Drills, Band Saws, Impact Wrenches, among others.
REBBER COVER SEAL
It can prevent the intrusion of any foreign matter and has a strong dust-proof effect. It is recommended for use in harsh environments.
IRON COVER SEAL
Compared with rubber seals, the speed is higher and the dust-proof effect is good. It is recommended when there is dust and no liquid impurities.
OPEN WITHOUT SEAL
The rotation speed is higher than the other 2 types, and the rolling resistance is low.
Deep groove ball bearing
Single row deep groove ball bearings are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types.
- Simple, versatile and robust design
- Low friction
- High-speed capability
- Accommodate radial and axial loads in both directions
- Require little maintenance
More series of deep groove ball bearing
Tip: Here are only part of the model numbers. Please contact us for full catalog.
| Deep Groove Ball Bearing Catalog | ||||||||
| Number | Specification | Rated Load(KN) | Speed(r/min) | Weight | ||||
| D(mm) | D(mm) | W(mm) | Cr(N) | Cor(N) | Grease | Oil | kg | |
| 6000 | 10 | 26 | 8 | 4.55 | 1.96 | 20000 | 28000 | 0.019 |
| 6001 | 12 | 28 | 8 | 5.1 | 2.39 | 19000 | 26000 | 0.571 |
| 6002 | 15 | 32 | 9 | 5.6 | 2.84 | 18000 | 24000 | 0.03 |
| 6003 | 17 | 35 | 10 | 6.8 | 3.35 | 17000 | 22000 | 0.039 |
| 6004 | 20 | 42 | 12 | 9.4 | 5.05 | 15000 | 19000 | 0.069 |
| 6005 | 25 | 47 | 12 | 10.1 | 5.85 | 13000 | 17000 | 0.08 |
| 6006 | 30 | 55 | 13 | 13.2 | 8.3 | 12000 | 15000 | 0.116 |
| 6007 | 35 | 62 | 14 | 16 | 10.3 | 10000 | 13000 | 0.155 |
| 6008 | 40 | 68 | 15 | 16.8 | 11.5 | 8000 | 11000 | 0.185 |
| 6009 | 45 | 75 | 16 | 21 | 15.1 | 7200 | 9000 | 0.231 |
| 6571 | 50 | 80 | 16 | 21.8 | 16.6 | 6400 | 7800 | 0.25 |
| 6011 | 55 | 90 | 18 | 28.3 | 21.2 | 5700 | 7000 | 0.362 |
| 6012 | 60 | 95 | 18 | 29.5 | 23.2 | 5300 | 6300 | 0.385 |
| 6013 | 65 | 100 | 18 | 30.5 | 25.2 | 5040 | 6000 | 0.421 |
| 6014 | 70 | 110 | 20 | 38 | 31 | 4800 | 5600 | 0.604 |
| 6015 | 75 | 115 | 20 | 39.5 | 33.5 | 4480 | 5360 | 0.604 |
| 6016 | 80 | 125 | 22 | 47.5 | 40 | 4240 | 5040 | 0.854 |
| 6017 | 85 | 130 | 22 | 49.5 | 43 | 4000 | 4800 | 0.89 |
| 6018 | 90 | 140 | 24 | 58 | 49.5 | 3840 | 4480 | 1.02 |
| 6019 | 95 | 145 | 24 | 60.5 | 54 | 3600 | 4240 | 1.08 |
| 6571 | 100 | 150 | 24 | 60 | 54 | 3440 | 4000 | 1.15 |
| 6571 | 105 | 160 | 26 | 72.5 | 65.5 | 3200 | 3840 | 1.59 |
| 6571 | 110 | 170 | 28 | 82 | 73 | 3040 | 3600 | 1.96 |
| 6571 | 120 | 180 | 28 | 85 | 79.5 | 2720 | 3200 | 2.07 |
| 6026 | 130 | 200 | 33 | 106 | 101 | 2560 | 3040 | 3.16 |
| 6571 | 140 | 210 | 33 | 110 | 109 | 2400 | 2880 | 3.35 |
| 6030 | 150 | 225 | 35 | 126 | 126 | 2080 | 2560 | 4.08 |
| 6032 | 160 | 240 | 38 | 143 | 144 | 1920 | 2400 | 5.05 |
| 6200 | 10 | 30 | 9 | 4.056 | 1.888 | 19200 | 24000 | 0.032 |
| 6201 | 12 | 32 | 10 | 5.512 | 2.48 | 17600 | 22400 | 0.037 |
| 6202 | 15 | 35 | 11 | 6.24 | 3 | 15200 | 19200 | 0.045 |
| 6203 | 17 | 40 | 12 | 7.648 | 3.8 | 13600 | 16000 | 0.065 |
| 6204 | 20 | 47 | 14 | 10.16 | 5.24 | 12000 | 14400 | 0.11 |
| 6205 | 25 | 52 | 15 | 11.2 | 6.24 | 9600 | 12000 | 0.13 |
| 6206 | 30 | 62 | 16 | 15.6 | 8.96 | 8000 | 10400 | 0.2 |
| 6207 | 35 | 72 | 17 | 20.4 | 12.24 | 7200 | 8800 | 0.29 |
| 6208 | 40 | 8 | 18 | 24.56 | 15.2 | 6800 | 8000 | 0.37 |
| 6209 | 45 | 85 | 19 | 26.56 | 17.28 | 6000 | 7200 | 0.41 |
| 6210 | 50 | 90 | 20 | 28.08 | 18.56 | 5600 | 6800 | 0.46 |
| 6211 | 55 | 100 | 21 | 34.88 | 23.2 | 5040 | 6000 | 0.61 |
| 6212 | 60 | 110 | 22 | 38 | 26 | 4800 | 5600 | 0.78 |
| 6213 | 65 | 120 | 23 | 44.72 | 32.4 | 4240 | 5040 | 0.99 |
| 6214 | 70 | 125 | 24 | 48.4 | 36 | 4000 | 4800 | 1.05 |
| 6215 | 75 | 130 | 25 | 53.04 | 39.2 | 4480 | 5360 | 1.2 |
| 6216 | 80 | 140 | 26 | 56.16 | 44 | 3600 | 4240 | 1.4 |
| 6217 | 85 | 150 | 28 | 66.56 | 51.2 | 3440 | 4000 | 1.8 |
| 6218 | 90 | 160 | 30 | 76.48 | 58.8 | 3040 | 3600 | 2.15 |
| 6219 | 95 | 170 | 32 | 86.4 | 65.2 | 2880 | 3440 | 2.6 |
| 6220 | 100 | 180 | 34 | 99.2 | 74.4 | 2720 | 3200 | 3.15 |
| 6221 | 105 | 190 | 36 | 106.4 | 83.2 | 2560 | 3040 | 3.7 |
| 6222 | 110 | 200 | 38 | 114.4 | 94.4 | 2400 | 2880 | 4.35 |
| 6224 | 120 | 215 | 40 | 116.8 | 94.4 | 2240 | 2720 | 5.15 |
| 6226 | 130 | 230 | 40 | 124.8 | 105.6 | 2080 | 2560 | 5.8 |
| 6228 | 140 | 250 | 42 | 132 | 120 | 1920 | 2400 | 7.45 |
| 6230 | 150 | 270 | 45 | 139.2 | 132.8 | 1600 | 2080 | 9.4 |
| 6232 | 160 | 290 | 48 | 148.8 | 148.8 | 1520 | 1920 | 14.5 |
| 6234 | 170 | 310 | 52 | 169.6 | 179.2 | 1520 | 1920 | 17.5 |
| 6236 | 180 | 320 | 52 | 183.2 | 192 | 1440 | 1760 | 18.5 |
| 6238 | 190 | 340 | 55 | 204 | 224 | 1360 | 1600 | 23 |
| 6240 | 200 | 360 | 58 | 216 | 248 | 1360 | 1600 | 28 |
| 6244 | 220 | 400 | 65 | 236.8 | 292 | 1200 | 1440 | 37 |
| 6248 | 240 | 440 | 72 | 286.4 | 380 | 1040 | 1280 | 51 |
| 6252 | 260 | 480 | 80 | 312 | 424 | 880 | 1120 | 65.5 |
| 6256 | 280 | 500 | 80 | 338.4 | 480 | 880 | 1120 | 71 |
| 6300 | 10 | 35 | 11 | 6.448 | 2.72 | 16000 | 20800 | 0.053 |
| 6301 | 12 | 37 | 12 | 7.8 | 3.32 | 15200 | 19200 | 0.06 |
| 6302 | 15 | 42 | 13 | 9.12 | 4.32 | 13600 | 16000 | 0.082 |
| 6303 | 17 | 47 | 14 | 10.8 | 5.24 | 12800 | 15200 | 0.12 |
| 6304 | 20 | 52 | 15 | 12.72 | 6.24 | 10400 | 12800 | 0.14 |
| 6305 | 25 | 62 | 17 | 18 | 9.28 | 8800 | 11200 | 0.23 |
| 6306 | 30 | 72 | 19 | 22.48 | 12.8 | 7200 | 8800 | 0.35 |
| 6307 | 35 | 80 | 21 | 26.56 | 15.2 | 6800 | 8000 | 0.46 |
| 6308 | 40 | 90 | 23 | 32.8 | 19.2 | 6000 | 7200 | 0.63 |
| 6309 | 45 | 100 | 25 | 42.16 | 25.2 | 53600 | 6400 | 0.83 |
| 6310 | 50 | 110 | 27 | 49.44 | 30.4 | 5040 | 6000 | 1.05 |
| 6311 | 55 | 120 | 29 | 57.2 | 36 | 4480 | 5360 | 1.35 |
| 6312 | 60 | 130 | 31 | 65.52 | 41.6 | 4000 | 4800 | 1.7 |
| 6313 | 65 | 140 | 33 | 73.84 | 48 | 3840 | 4480 | 2.1 |
| 6314 | 70 | 150 | 35 | 83.2 | 54.4 | 3600 | 4240 | 2.5 |
| 6315 | 75 | 160 | 37 | 91.2 | 61.2 | 3440 | 4000 | 3 |
| 6316 | 80 | 170 | 39 | 99.2 | 69.2 | 3040 | 3600 | 3.6 |
| 6317 | 85 | 180 | 41 | 106.4 | 77.2 | 2880 | 3440 | 4.25 |
| 6318 | 90 | 190 | 43 | 114.4 | 86.4 | 2720 | 3200 | 4.9 |
| 6319 | 95 | 200 | 45 | 122.4 | 94.4 | 2560 | 3040 | 5.65 |
| 6320 | 100 | 215 | 47 | 139.2 | 112 | 2400 | 2880 | 7 |
| 6321 | 105 | 225 | 49 | 145.6 | 122.4 | 2240 | 2720 | 8.25 |
| 6322 | 110 | 240 | 50 | 162.4 | 144 | 2080 | 2560 | 9.55 |
| 6324 | 120 | 260 | 55 | 166.4 | 148.8 | 1920 | 2400 | 14.5 |
| 6326 | 130 | 280 | 58 | 183.2 | 172.8 | 1760 | 2240 | 18 |
| 6328 | 140 | 300 | 62 | 200.8 | 196 | 1600 | 2080 | 22 |
| 6330 | 150 | 320 | 65 | 220.8 | 228 | 1520 | 1920 | 26 |
| 6332 | 160 | 340 | 68 | 220.8 | 228 | 1440 | 1760 | 29 |
| 6334 | 170 | 360 | 72 | 249.6 | 272 | 1360 | 1600 | 34.5 |
| 6336 | 180 | 380 | 75 | 280.8 | 324 | 1280 | 1600 | 42.5 |
| 6338 | 190 | 400 | 78 | 296.8 | 344 | 1280 | 1520 | 49 |
| 6340 | 200 | 420 | 80 | 301.6 | 372 | 1200 | 1440 | 55.5 |
| 6344 | 220 | 460 | 88 | 328 | 416 | 1040 | 1280 | 72.5 |
Packaging & Shipping
Please contact us for more pictures of different packing.
|
Universal Packing |
Without any logo on bearings or packing. |
|
JDZ Packing |
With our brand JDZ on bearings and packing. |
|
Customized Packing |
Depends on buyer’s requirements. |
|
Original Brand Packing |
Bearing and packing are both original. Please contact us for pictures. |
QUALITY ASSURANCE
100% Quality inspection to ensure the bearings are with good quality before shipping.
Company Profile
ZheJiang CZPT Precision Bearing Co.,Ltd. was founded by ZheJiang Defa Bearing Co.,Ltd, factory is located in ZheJiang province, China.
We are a bearing manufacturer integrating the research, development and sales of bearings, with a floor area of 18,000 square meters and a plant area of 8,800 square meters. Equipped with modern production equipment and advanced detection instruments.
We can provide all types bearings and OEM service according to customers’ requirements.
Our products are widely used in the automobile, agricultural, textile production, mining, printing and packing industries, in addition to various applications at airports, in air-conditioning systems, conveying devices, ships ad so on. Our products are being exported to more than 50 countries and regions overseas including Singapore, Thailand, Iran, Turkey, Poland, Italy, England, France, Russia, Germany, the United States, Australia, Argentina, Brazil as well as other countries and regions all over the world.
We are a trusted and reliable bearing supplier, choose us to be your good partner!
Quality Inspection
Our Advantages
1. Professional production team with advanced production equipment and testing instruments.
2. Many years of export experience can provide customers with better service and problem-solving capabilities.
3. Customers all over the world enable us to better understand the market and provide customers with suitable bearings.
4. Sincerity, cooperation, mutual and provide good quality bearings for clients are the development idea of our company
5. Quick delivery, shipping goods on time. Save more time and cost for all customers.
FAQ
1. Q: Are you trading company or manufacturer ?
A: We have our own factory , our type is factory + trade.
2. Q: Could you accept OEM and customize?
A: Yes, we can customize products according to your sample or drawing.
3. Q: How long is your delivery time?
A: If stock, within 7 days to ship or based on your order quantity.
4. Q: Could you supply sample for free?
A: Yes, we can offer the sample for free,do you mind to buy a “ticket” for her?
More details, please contact with us. Thanks for your time!
/* 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(/(.*?):(.*)$/))&&1
| Bearing Type: | Deep Groove Ball Bearing |
|---|---|
| Precision Rating: | P0 P6 P5 P4 P2 or ABEC1 ABEC3 ABEC5 ABEC7 ABEC9 |
| Bearing Clearance: | C0/C3/C4 |
| Vibration: | Z1V1, Z2V2, Z3V3; Z4V4 |
| Seals Type: | Zz 2RS Open |
| Hardness: | 58-62 HRC |
| Samples: |
US$ 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.

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.

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 2024-05-16
China manufacturer China Manufacturer Auto Parts Machinery Roller Bearing Thrust Ball Bearing bearing example
Product Description
Company Profile
MKS Hydraulics ZheJiang Co., Ltd.is a scientific and professional bearing producing enterprise, gathering R&D, producing and sales as 1 integration.mainly operating on non-standard, special andgeneral bearings.
The company is especially focusing on the research and manufacture of general high-tech production with the 20 years R&D experience, professional R&D staff and advanced equipment, of which 8 sets are imported equipment and 40 sets are high-precision processing equipment. it has invested for building a modern workshop, including 1 Bainite heat processing workshop of world advanced level, 1 machine processing workshop, 2 moder thermostatic &no-dust roller grinders, assembly workshop, physical-chemical testing center, heating laboratory and moder-managed warehouse. Depending on the markets in China and abroad, the company puts an active attitude upon products R&D, resulting a healthy circulation of 1 development generation, 1 reserve generation, and 1 producion generation. The enterprise enlarges the R&D investment, creates own brand, and strives to increase the exporting products of high-tech & high value-added, gains the honorable sales result and grows into 1 of the largest R&D enterprise in China of non-standard bearing and special bearing.
The advanced technology, outstanding quaity and considerable service after sales with enthusiasm make us get the rapid development in quite short time of years, and now it becomes the largest developing and producing enterprise in Asia of concrete carrier truck, speed-reducing machine,mine-digging machine, hydraulic pump spindle bearing and crecent bearing. With the continuing and wholly new developing theory of Technology is the motivation and quality is the life, We are not only pursuing the leading position in China, but also determined to march into the worldwide bearing area during it developing process, The products are mainly applied on the industries of mine, metalurgy, engineering, machineny, machine tool,electronic machine and so on, The products have gained the excllent sales resul in the markets of Europe, Southeast Asia, Middle East and so on in a dozen of countries and areas.
Company Environment
Company Advantages
Packaging & Shipping
FAQ
1. how can we guarantee quality?
Always final Inspection before shipment;
2.what can you buy from us?
Auto Bearing,Bearing Housing,Taper Roller Bearing,Casting,Hydraulic pump,Hydraulic parts,excavator parts and so on.
Ceep groove ball bearing/Self aligning ball bearing/Cylindrical roller bearing/Spherical roller bearing/ Angular contact ball bearing/Tapered roller bearing/ Thrust ball bearing/Thrust cylindrical roller bearing/Needle roller bearing
3. why should you buy from us not from other suppliers?
One stop bearing and mechanical customized parts,
Designed bearing,
Small quantity order available
Factory price offer
OEM ODM bearing service
4.What is the transportation?
lf small quantity,we suggest to send by express,such as DHL,UPS,TNT FEDEX flarge amount,by air or sea shipping.
5.Can we design packaging?
Except regular packing,and we can make customer’s own packing.
6.What’s your payment method?
We can accept LC, T/T, D/P, PayPal, Western Union, Small-amount payment, MoneyGram etc.
7.Can the company provide free samples?
We can provide samples for free. You only need to provide shipping.
8.Is the company a production factory or a trading company?
MKS company is a manufacturing enterprise focusing on bearings ,hydraulic pumps and hydraulic parts , produce and sales.
If you have any questions,Please contact us,We must be reply quickly.
/* 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(/(.*?):(.*)$/))&&1
| Raceway Super Finishing: | Yes |
|---|---|
| Bearing Grade: | P3 |
| Service: | OEM / ODM Customized Logo |
| Shipment: | by Sea, by Air, by Express |
| Quality: | Good /High Quality |
| Features: | High Precision, High Speed, Long Life |
| Samples: |
US$ 100/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 Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?
Miniature ball bearings, as the name suggests, are smaller in size compared to standard-sized ball bearings. They have distinct characteristics and are designed to meet the unique requirements of applications that demand compactness, precision, and efficient rotation in confined spaces. Here’s how miniature ball bearings differ from standard-sized ones and where they are commonly used:
- Size:
The most noticeable difference is their size. Miniature ball bearings typically have outer diameters ranging from a few millimeters to around 30 millimeters, while standard-sized ball bearings have larger dimensions suitable for heavier loads and higher speeds.
- Load Capacity:
Due to their smaller size, miniature ball bearings have lower load-carrying capacities compared to standard-sized bearings. They are designed for light to moderate loads and are often used in applications where precision and compactness are prioritized over heavy load support.
- Precision:
Miniature ball bearings are known for their high precision and accuracy. They are manufactured to tighter tolerances, making them suitable for applications requiring precise motion control and low levels of vibration.
- Speed:
Miniature ball bearings can achieve higher speeds than standard-sized bearings due to their smaller size and lower mass. This makes them ideal for applications involving high-speed rotation.
- Friction and Efficiency:
Miniature ball bearings generally have lower friction due to their smaller contact area. This contributes to higher efficiency and reduced heat generation in applications that require smooth and efficient motion.
- Applications:
Miniature ball bearings find applications in various industries and sectors:
- Electronics and Consumer Devices:
They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.
- Medical and Dental Equipment:
Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.
- Robotics and Automation:
Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.
- Aerospace and Defense:
They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.
- Optics and Instrumentation:
Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.
Overall, miniature ball bearings are specialized components designed for applications where space, precision, and efficient rotation are paramount. Their compactness and high precision make them crucial in various industries requiring reliable motion control in limited spaces.

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 2024-05-13
China manufacturer Asian Standard Linear Bearing Method Blue Bearings Can Be Used for Food Machinery Ball Bearings drive shaft bearing
Product Description
Product Name: Asia standard lengthened Square Flanged Linear Bearing
Linear motion bearings have the characteristics of smooth movement, low friction, high rigidity, long life, economy, easy to maintain or replace,
Our priority is 100% quality control and 100% customer satisfaction. We have a responsibility to help our customers to be competitive and advantageous in the market
Maneuvering linear slides such as machine slides, XY tables, roller tables and some dovetail sliders are moved by the bearings of the drive mechanism. Not all linear slides are electric, there are non-electric dovetail slides, ball bearing sliders and roller sliders that provide low friction linear motion for inertially or manually driven devices. All linear sliders provide linear motion according to bearings, whether they are ball bearings, dovetail bearings or linear roller bearings. XY tables, linear stages, machine sliders and other advanced sliders use linear motion bearings to provide multi-axis movement along X and Y.
Product General information
a, Low frictional linear motion
Steel balls are accurately guided by a retainer, so low frictional resistance and stable linear motion can be achieved.
Simple replacement of conventional plain bushings
It is easy to use Linear Bushings instead of conventional plain bushings, because both types are used with a round shaft, and no major redesign is necessary.
b, Wide variations
For each dimensional series, standard, adjustable clearance and open types are available with and without seals, so the best linear bushing for the application may be selected. In addition to the standard type, the high-rigidity long type is available. These types can be selected to suit the requirements in applications.
c, Miniature linear bushing LM Compact design
Miniature Linear Bushing is very small in size, allowing for compact assembly in machines and equipment.
d, High Reliability
ERSK linear bearing has very stringent quality control standards covering every production process. With proper lubrication and use,trouble-free operation for an extended period of time is possible.
e,Smooth Operation
The high efficiency of linear shaft is vastly superior to conventional shaft. The torque required is less than 30%. Linear motion can be easily changed from rotary motion. The linear bearings are moved very smoothly in the linear shaft.
f,High Durability
Rigidly selected materials, intensive heat treating and processing techniques, backed by years of experience,have resulted in the most durable linear bearings manufactured.
g,Easy interchangable
h,Easy maintenance
the linear rails can replace the base surface installation, the old wear parts (rails and blocks) can be replaced, reduce costs.
i,Easy installation
the linear rails and carriages can be changed easily, reduce material costs, reduce product prices, reduce product replacement costs and time.
Company Profile
Yiboyuan (HangZhou City) Precision Machinery Co., Ltd. is located in Bacha Road Industrial Park, HangZhou City, HangZhou City, ZheJiang Province, is a professional manufacturer of linear bearings
integrating design, research and development, production and sales. The company’s main products are: YBYZ linear bearings, YBYZ linear flange bearings, YBYZ nickel-plated linear bearings, YBYZ steel linear bearings, YBYZ box sliders, YBYZ smooth shaft supports, YBYZ self lubricating bearings, YBYZ outer steel inner copper linear bearings, YBYZ aluminum-plastic linear bearings, YBYZ all-plastic linear
bearings, YBYZ graphite copper sleeved linear bearings, YBYZ fixed rings, nut seats, cross shaft brackets and so on. Yiboyuan linear bearings should build the most complete linear bearing enterprises and smooth shaft supporting products at home and abroad, and solve one-stop procurement services for automation companies.Our mission – to create revenue benefits for customers, provide high-quality products for the market, and create a stage for employees to play, the future Yiboyuan is a high-tech, service-oriented, international Yiboyuan, to build a century-old brand is our continuous goal.
Brand trademark registration
Yiboyuan (HangZhou) Precision Machinery Co., Ltd. is a professional manufacturer of linear motion products with many years of experience. And has its own registered brand YBYZ, we specialize in the production of linear bearings, plain bearings, shaft bearings, box sliders, self-lubricating copper sleeve. Good quality, competitive price. Our company is located in HangZhou City, ZheJiang Province. Close to HangZhou Port, ZheJiang Port.
Our products are widely used in precision machinery, fitness equipment, printing presses, packaging machines, medical and food machinery, textile machinery and other machinery and auxiliary equipment. Our products sell well in North America, Western Europe, Australia, Southeast Asia, the Middle East, South America and other regions.
Our packing:
* Industrial pakage
HangZhou City, ZheJiang Province.
/* 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(/(.*?):(.*)$/))&&1
| Feature: | Vacuum, Magnetically, Low Temperature, Corrosion Resistant, High Temperature, High Speed |
|---|---|
| Function: | Super |
| Flange Shape: | None |
| Shape: | Straight |
| Series: | LM |
| Material: | Bearing Steel |
| Samples: |
US$ 0.1/Piece
1 Piece(Min.Order) | |
|---|
| Customization: |
Available
| Customized Request |
|---|

What are the Materials Typically Used in Manufacturing Ball Bearings and Their Advantages?
Ball bearings are manufactured using a variety of materials, each chosen for its specific properties and advantages in various applications. Here are some commonly used materials in ball bearing manufacturing and their respective benefits:
- High-Carbon Chrome Steel (AISI 52100):
This is the most common material used for ball bearing manufacturing. It offers excellent hardness, wear resistance, and fatigue strength. High-carbon chrome steel bearings are suitable for a wide range of applications, from industrial machinery to automotive components.
- Stainless Steel (AISI 440C, AISI 304, AISI 316):
Stainless steel bearings are corrosion-resistant and suitable for applications where moisture, chemicals, or exposure to harsh environments are concerns. AISI 440C offers high hardness and corrosion resistance, while AISI 304 and AISI 316 provide good corrosion resistance and are often used in food and medical industries.
- Ceramic:
Ceramic bearings use silicon nitride (Si3N4) or zirconia (ZrO2) balls. Ceramic materials offer high stiffness, low density, and excellent resistance to corrosion and heat. Ceramic bearings are commonly used in high-speed and high-temperature applications, such as in aerospace and racing industries.
- Plastic (Polyamide, PEEK):
Plastic bearings are lightweight and offer good corrosion resistance. Polyamide bearings are commonly used due to their low friction and wear properties. Polyether ether ketone (PEEK) bearings provide high-temperature resistance and are suitable for demanding environments.
- Bronze:
Bronze bearings are often used in applications where self-lubrication is required. Bronze has good thermal conductivity and wear resistance. Bearings made from bronze are commonly used in machinery requiring frequent starts and stops.
- Hybrid Bearings:
Hybrid bearings combine steel rings with ceramic balls. These bearings offer a balance between the advantages of both materials, such as improved stiffness and reduced weight. Hybrid bearings are used in applications where high speeds and low friction are essential.
- Specialty Alloys:
For specific applications, specialty alloys may be used to meet unique requirements. For example, bearings used in extreme temperatures or corrosive environments may be made from materials like titanium or hastelloy.
- Coated Bearings:
Bearings may also be coated with thin layers of materials like diamond-like carbon (DLC) or other coatings to enhance performance, reduce friction, and improve wear resistance.
The choice of material depends on factors such as application requirements, operating conditions, load, speed, and environmental factors. Selecting the right material is essential for ensuring optimal bearing performance, longevity, and reliability in diverse industries and applications.

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 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 2024-05-09
China factory The Asian Standard Linear Bearing Method LAN Can Be Used for Ball Bearings in Medical and Food Machinery with Great quality
Product Description
Product Name: Asia standard lengthened Square Flanged Linear Bearing
Linear motion bearings have the characteristics of smooth movement, low friction, high rigidity, long life, economy, easy to maintain or replace,
Our priority is 100% quality control and 100% customer satisfaction. We have a responsibility to help our customers to be competitive and advantageous in the market
Maneuvering linear slides such as machine slides, XY tables, roller tables and some dovetail sliders are moved by the bearings of the drive mechanism. Not all linear slides are electric, there are non-electric dovetail slides, ball bearing sliders and roller sliders that provide low friction linear motion for inertially or manually driven devices. All linear sliders provide linear motion according to bearings, whether they are ball bearings, dovetail bearings or linear roller bearings. XY tables, linear stages, machine sliders and other advanced sliders use linear motion bearings to provide multi-axis movement along X and Y.
Product General information
a, Low frictional linear motion
Steel balls are accurately guided by a retainer, so low frictional resistance and stable linear motion can be achieved.
Simple replacement of conventional plain bushings
It is easy to use Linear Bushings instead of conventional plain bushings, because both types are used with a round shaft, and no major redesign is necessary.
b, Wide variations
For each dimensional series, standard, adjustable clearance and open types are available with and without seals, so the best linear bushing for the application may be selected. In addition to the standard type, the high-rigidity long type is available. These types can be selected to suit the requirements in applications.
c, Miniature linear bushing LM Compact design
Miniature Linear Bushing is very small in size, allowing for compact assembly in machines and equipment.
d, High Reliability
ERSK linear bearing has very stringent quality control standards covering every production process. With proper lubrication and use,trouble-free operation for an extended period of time is possible.
e,Smooth Operation
The high efficiency of linear shaft is vastly superior to conventional shaft. The torque required is less than 30%. Linear motion can be easily changed from rotary motion. The linear bearings are moved very smoothly in the linear shaft.
f,High Durability
Rigidly selected materials, intensive heat treating and processing techniques, backed by years of experience,have resulted in the most durable linear bearings manufactured.
g,Easy interchangable
h,Easy maintenance
the linear rails can replace the base surface installation, the old wear parts (rails and blocks) can be replaced, reduce costs.
i,Easy installation
the linear rails and carriages can be changed easily, reduce material costs, reduce product prices, reduce product replacement costs and time.
Company Profile
Yiboyuan (HangZhou City) Precision Machinery Co., Ltd. is located in Bacha Road Industrial Park, HangZhou City, HangZhou City, ZheJiang Province, is a professional manufacturer of linear bearings
integrating design, research and development, production and sales. The company’s main products are: YBYZ linear bearings, YBYZ linear flange bearings, YBYZ nickel-plated linear bearings, YBYZ steel linear bearings, YBYZ box sliders, YBYZ smooth shaft supports, YBYZ self lubricating bearings, YBYZ outer steel inner copper linear bearings, YBYZ aluminum-plastic linear bearings, YBYZ all-plastic linear
bearings, YBYZ graphite copper sleeved linear bearings, YBYZ fixed rings, nut seats, cross shaft brackets and so on. Yiboyuan linear bearings should build the most complete linear bearing enterprises and smooth shaft supporting products at home and abroad, and solve one-stop procurement services for automation companies.Our mission – to create revenue benefits for customers, provide high-quality products for the market, and create a stage for employees to play, the future Yiboyuan is a high-tech, service-oriented, international Yiboyuan, to build a century-old brand is our continuous goal.
Brand trademark registration
Yiboyuan (HangZhou) Precision Machinery Co., Ltd. is a professional manufacturer of linear motion products with many years of experience. And has its own registered brand YBYZ, we specialize in the production of linear bearings, plain bearings, shaft bearings, box sliders, self-lubricating copper sleeve. Good quality, competitive price. Our company is located in HangZhou City, ZheJiang Province. Close to HangZhou Port, ZheJiang Port.
Our products are widely used in precision machinery, fitness equipment, printing presses, packaging machines, medical and food machinery, textile machinery and other machinery and auxiliary equipment. Our products sell well in North America, Western Europe, Australia, Southeast Asia, the Middle East, South America and other regions.
Our packing:
* Industrial pakage
HangZhou City, ZheJiang Province.
/* 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(/(.*?):(.*)$/))&&1
| Feature: | Vacuum, Magnetically, Low Temperature, Corrosion Resistant, High Temperature, High Speed |
|---|---|
| Function: | Super |
| Flange Shape: | None |
| Shape: | Straight |
| Series: | LM |
| Material: | Bearing Steel |
| Samples: |
US$ 0.1/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.

How do Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?
Miniature ball bearings, as the name suggests, are smaller in size compared to standard-sized ball bearings. They have distinct characteristics and are designed to meet the unique requirements of applications that demand compactness, precision, and efficient rotation in confined spaces. Here’s how miniature ball bearings differ from standard-sized ones and where they are commonly used:
- Size:
The most noticeable difference is their size. Miniature ball bearings typically have outer diameters ranging from a few millimeters to around 30 millimeters, while standard-sized ball bearings have larger dimensions suitable for heavier loads and higher speeds.
- Load Capacity:
Due to their smaller size, miniature ball bearings have lower load-carrying capacities compared to standard-sized bearings. They are designed for light to moderate loads and are often used in applications where precision and compactness are prioritized over heavy load support.
- Precision:
Miniature ball bearings are known for their high precision and accuracy. They are manufactured to tighter tolerances, making them suitable for applications requiring precise motion control and low levels of vibration.
- Speed:
Miniature ball bearings can achieve higher speeds than standard-sized bearings due to their smaller size and lower mass. This makes them ideal for applications involving high-speed rotation.
- Friction and Efficiency:
Miniature ball bearings generally have lower friction due to their smaller contact area. This contributes to higher efficiency and reduced heat generation in applications that require smooth and efficient motion.
- Applications:
Miniature ball bearings find applications in various industries and sectors:
- Electronics and Consumer Devices:
They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.
- Medical and Dental Equipment:
Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.
- Robotics and Automation:
Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.
- Aerospace and Defense:
They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.
- Optics and Instrumentation:
Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.
Overall, miniature ball bearings are specialized components designed for applications where space, precision, and efficient rotation are paramount. Their compactness and high precision make them crucial in various industries requiring reliable motion control in limited spaces.

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 2024-04-19
China Custom CZPT Radial Deep Groove Ball Bearings for Electric Machinery Industry 6904 Series bearing driver
Product Description
KGG:Precision Deep Groove Ball Bearing
Advantages and features of CZPT bearings
∞ CZPT Ball Bearings consist of an outer ring, an inner ring, and a plurality of rollers and spacers. The bearing with high rotation accuracy capable of bearing loads in every direction. Because it has orthogonally arranged cylindrical rollers, it can bear loads in every direction. CZPT provides 2 kinds of bearings: Deep Groove Ball Bearing and Angular Contact Ball Bearings.
∞ ACBB, which is the abbreviation of angular contact ball bearings. With different contact angles, the higher axial load can be well taken care now. CZPT standard ball bearings are the perfect solution for high runout accuracy applications such as machine tool main spindles.
∞ Deep groove ball bearings are widely used in many industries for decades. A deep groove is formed on each inner and outer ring of the bearings enabling them to sustain radial and axial loads or even combinations of both. As the leading deep groove ball bearing factory, CZPT Bearings owns abundant experience in designing and producing this type of bearing.
Application:
1. Medical industry
2.Lithium battery industry
3.Solar photovoltaic industry
4. Semi conductor Industry
5. General industry machinery
6. Machine tool
7. Parking system
8. High-speed rail and aviation transportation equipment
9. 3C industry etc
Specification List
| Boundary Dimensions (mm) | Basic Load Ratings(N) | Limiting Speeds (rpm) | Bearing Numbers Type | Snap ring groove dimensions | Snap ring dimensions |
|||||||||||||||||
| d | D | B | r | dynamic Cr |
static Cor | Grease | Oil | Open type |
Shield ZZ |
Seal non-contact LLB |
Low torque type LLH |
Seal contact LLU |
Snap ring groove |
Snap ring |
D1 | a | b | ro | D2 | f | ||
| min | Open Z,ZZ LB,LLB |
LLH | LU LLU | Open Z LB | max | max | min | max | max | max | ||||||||||||
| 10 | 19 | 5 | 0.3 | 1830 | 925 | 32000 | – | 24000 | 38000 | 6800 | ZZ | LLB | – | LLU | – | – | – | – | – | – | – | – |
| 22 | 6 | 0.3 | 2700 | 1270 | 30000 | – | 21000 | 36000 | 6900 | ZZ | LLB | – | LLU | N | NR | 20.8 | 1.05 | 0.8 | 0.2 | 24.8 | 0.7 | |
| 26 | 8 | 0.3 | 4550 | 1960 | 29000 | 25000 | 21000 | 34000 | 6000 | ZZ | LLB | LLH | LLU | N | NR | – | – | – | – | – | – | |
| 30 | 9 | 0.6 | 5100 | 2390 | 25000 | 21000 | 18000 | 30000 | 6200 | ZZ | LLB | LLH | LLU | N | NR | 28.17 | 2.06 | 1.35 | 0.4 | 34.7 | 1.12 | |
| 35 | 11 | 0.6 | 8200 | 3500 | 23000 | 20000 | 16000 | 27000 | 6300 | ZZ | LLB | LLH | LLU | N | NR | 33.17 | 2.06 | 1.35 | 0.4 | 39.7 | 1.12 | |
| 12 | 21 | 5 | 0.3 | 1920 | 1040 | 29000 | – | 20000 | 35000 | 6801 | ZZ | LLB | – | LLU | – | – | – | – | – | – | – | – |
| 24 | 6 | 0.3 | 2890 | 1460 | 27000 | – | 19000 | 32000 | 6901 | ZZ | LLB | – | LLU | N | NR | 22.8 | 1.05 | 0.8 | 0.2 | 26.8 | 0.7 | |
| 28 | 7 | 0.3 | 5100 | 2390 | 26000 | – | – | 30000 | 16001 | – | – | – | – | – | – | – | – | – | – | – | – | |
| 28 | 8 | 0.3 | 5100 | 2390 | 26000 | 21000 | 18000 | 30000 | 6001 | ZZ | LLB | LLH | LLU | N | NR | – | – | – | – | – | – | |
| 32 | 10 | 0.6 | 6100 | 2750 | 22000 | 20000 | 16000 | 26000 | 6201 | ZZ | LLB | LLH | LLU | N | NR | 30.5 | 2.06 | 1.35 | 0.4 | 36.7 | 1.12 | |
| 37 | 12 | 1 | 9700 | 4200 | 20000 | 19000 | 15000 | 24000 | 6301 | ZZ | LLB | LLH | LLU | N | NR | 34.77 | 2.06 | 1.35 | 0.4 | 41.3 | 1.12 | |
| 15 | 24 | 5 | 0.3 | 2080 | 1260 | 26000 | – | 17000 | 31000 | 6802 | ZZ | LLB | – | LLU | – | – | – | – | – | – | – | – |
| 28 | 7 | 0.3 | 3650 | 2000 | 24000 | – | 16000 | 28000 | 6902 | ZZ | LLB | – | LLU | N | NR | 26.7 | 1.3 | 0.95 | 0.25 | 30.8 | 0.85 | |
| 32 | 8 | 0.3 | 5600 | 2830 | 22000 | – | – | 26000 | 16002 | – | – | – | – | – | – | – | – | – | – | – | – | |
| 32 | 9 | 0.3 | 5600 | 2830 | 22000 | 18000 | 15000 | 26000 | 6002 | ZZ | LLB | LLH | LLU | N | NR | 30.15 | 2.06 | 1.35 | 0.4 | 36.7 | 1.12 | |
| 35 | 11 | 0.6 | 7750 | 3600 | 19000 | 18000 | 15000 | 23000 | 6202 | ZZ | LLB | LLH | LLU | N | NR | 33.17 | 2.06 | 1.35 | 0.4 | 39.7 | 1.12 | |
| 42 | 13 | 1 | 11400 | 5450 | 17000 | 15000 | 12000 | 21000 | 6302 | ZZ | LLB | LLH | LLU | N | NR | 39.75 | 2.06 | 1.35 | 0.4 | 46.3 | 1.12 | |
| 17 | 24 | 5 | 0.3 | 2080 | 1260 | 26000 | – | 17000 | 31000 | 6802 | ZZ | LLB | – | LLU | – | – | – | – | – | – | – | – |
| 28 | 7 | 0.3 | 3650 | 2000 | 24000 | – | 16000 | 28000 | 6902 | ZZ | LLB | – | LLU | N | NR | 28.7 | 1.3 | 0.95 | 0.25 | 32.8 | 0.85 | |
| 32 | 8 | 0.3 | 5600 | 2830 | 22000 | – | – | 26000 | 16002 | – | – | – | – | – | – | – | – | – | – | – | – | |
| 32 | 9 | 0.3 | 5600 | 2830 | 22000 | 18000 | 15000 | 26000 | 6002 | ZZ | LLB | LLH | LLU | N | NR | 33.17 | 2.06 | 1.35 | 0.4 | 39.7 | 1.12 | |
| 35 | 11 | 0.6 | 7750 | 3600 | 19000 | 18000 | 15000 | 23000 | 6202 | ZZ | LLB | LLH | LLU | N | NR | 38.1 | 2.06 | 1.35 | 0.4 | 44.6 | 1.12 | |
| 42 | 13 | 1 | 11400 | 5450 | 17000 | 15000 | 12000 | 21000 | 6302 | ZZ | LLB | LLH | LLU | N | NR | 44.6 | 2.46 | 1.35 | 0.4 | 52.7 | 1.12 | |
| 20 | 32 | 7 | 0.3 | 4000 | 2470 | 21000 | – | 13000 | 25000 | 6804 | ZZ | LLB | – | LLU | N | NR | 30.7 | 1.3 | 0.95 | 0.25 | 34.8 | 0.85 |
| 37 | 9 | 0.3 | 6400 | 3700 | 19000 | – | 12000 | 23000 | 6904 | ZZ | LLB | – | LLU | N | NR | 35.7 | 1.7 | 0.95 | 0.25 | 39.8 | 0.85 | |
| 42 | 8 | 0.3 | 7900 | 4500 | 18000 | – | – | 21000 | 16004 | – | – | – | – | – | – | – | – | – | – | – | – | |
| 42 | 12 | 0.6 | 9400 | 5050 | 18000 | 13000 | 11000 | 21000 | 6004 | ZZ | LLB | LLH | LLU | N | NR | 39.75 | 2.06 | 1.35 | 0.4 | 46.3 | 1.12 | |
| 47 | 14 | 1 | 12800 | 6650 | 16000 | 12000 | 10000 | 18000 | 6204 | ZZ | LLB | LLH | LLU | N | NR | 44.6 | 2.46 | 1.35 | 0.4 | 52.7 | 1.12 | |
| 52 | 15 | 1.1 | 15900 | 7900 | 14000 | 12000 | 10000 | 17000 | 6304 | ZZ | LLB | LLH | LLU | N | NR | 49.73 | 2.46 | 1.35 | 0.4 | 57.9 | 1.12 | |
| 22 | 44 | 12 | 0.6 | 9400 | 5050 | 17000 | 13000 | 10000 | 20000 | 60/22 | ZZ | LLB | LLH | LLU | N | NR | 41.75 | 2.06 | 1.35 | 0.4 | 48.3 | 1.12 |
| 50 | 14 | 1 | 12900 | 6800 | 14000 | 12000 | 9700 | 17000 | 62/22 | ZZ | LLB | LLH | LLU | N | NR | 47.6 | 2.46 | 1.35 | 0.4 | 55.7 | 1.12 | |
| 56 | 16 | 1.1 | 18400 | 9250 | 13000 | 11000 | 9200 | 15000 | 63/22 | ZZ | LLB | LLH | LLU | N | NR | 53.6 | 2.46 | 1.35 | 0.4 | 61.7 | 1.12 | |
| 25 | 37 | 7 | 0.3 | 4300 | 2950 | 18000 | – | 10000 | 21000 | 6805 | ZZ | LLB | – | LLU | N | NR | 35.7 | 1.3 | 0.95 | 0.25 | 39.8 | 0.85 |
| 42 | 9 | 0.3 | 7050 | 4550 | 16000 | – | 9800 | 19000 | 6905 | ZZ | LLB | – | LLU | N | NR | 40.7 | 1.7 | 0.95 | 0.25 | 44.8 | 0.85 | |
| 47 | 8 | 0.3 | 8350 | 5100 | 15000 | – | – | 18000 | 16005 | – | – | – | – | – | – | – | – | – | – | – | – | |
| 47 | 12 | 0.6 | 15710 | 5850 | 15000 | 11000 | 9400 | 18000 | 6005 | ZZ | LLB | LLH | LLU | N | NR | 44.6 | 2.06 | 1.35 | 0.4 | 52.7 | 1.12 | |
| 52 | 15 | 1 | 14000 | 7850 | 13000 | 11000 | 8900 | 15000 | 6205 | ZZ | LLB | LLH | LLU | N | NR | 49.73 | 2.46 | 1.35 | 0.4 | 57.9 | 1.12 | |
| 62 | 17 | 1.1 | 21200 | 10900 | 12000 | 9700 | 8100 | 14000 | 6305 | ZZ | LLB | LLH | LLU | N | NR | 59.61 | 3.28 | 1.9 | 0.6 | 67.7 | 1.7 | |
| 80 | 21 | 1.5 | 34500 | 17500 | 10000 | – | – | 12000 | 6405 | – | – | – | – | – | – | – | – | – | – | – | – | |
| 28 | 52 | 12 | 0.6 | 12500 | 7400 | 14000 | 10000 | 8400 | 16000 | 60/28 | ZZ | LLB | LLH | LLU | N | NR | 49.7 | 2.06 | 1.35 | 0.4 | 57.9 | 1.12 |
| 58 | 16 | 1 | 17900 | 9750 | 12000 | 9700 | 8100 | 14000 | 62/28 | ZZ | LLB | LLH | LLU | N | NR | 55.6 | 2.46 | 1.35 | 0.4 | 63.7 | 1.12 | |
| 68 | 18 | 1.1 | 26700 | 14000 | 11000 | 8900 | 7400 | 13000 | 63/28 | ZZ | LLB | LLH | LLU | N | NR | 64.82 | 3.28 | 1.9 | 0.6 | 74.6 | 1.7 | |
| 30 | 42 | 7 | 0.3 | 4700 | 3650 | 15000 | – | 8800 | 18000 | 6806 | ZZ | LLB | – | LLU | N | NR | 40.7 | 1.3 | 0.95 | 0.25 | 44.8 | 0.85 |
| 47 | 9 | 0.3 | 7250 | 5000 | 14000 | – | 8400 | 17000 | 6906 | ZZ | LLB | – | LLU | N | NR | 45.7 | 1.7 | 0.95 | 0.25 | 49.8 | 0.85 | |
| 55 | 9 | 0.3 | 11200 | 7350 | 13000 | – | – | 15000 | 16006* | – | – | – | – | – | – | – | – | – | – | – | – | |
| 55 | 13 | 1 | 13200 | 8300 | 13000 | 9200 | 7700 | 15000 | 6006 | ZZ | LLB | LLH | LLU | N | NR | 52.6 | 2.08 | 1.35 | 0.4 | 60.7 | 1.12 | |
| 62 | 16 | 1 | 19500 | 11300 | 11000 | 8800 | 7300 | 13000 | 6206 | ZZ | LLB | LLH | LLU | N | NR | 59.61 | 3.28 | 1.9 | 0.6 | 67.7 | 1.7 | |
| 72 | 19 | 1.1 | 26700 | 15000 | 10000 | 7900 | 6600 | 12000 | 6306 | ZZ | LLB | LLH | LLU | N | NR | 68.81 | 3.28 | 1.9 | 0.6 | 78.6 | 1.7 | |
| 32 | 58 | 13 | 1 | 11800 | 8050 | 12000 | 8700 | 7200 | 15000 | 60/32 | ZZ | LLB | LLH | LLU | N | NR | 55.6 | 2.08 | 1.35 | 0.4 | 63.7 | 1.12 |
| 65 | 17 | 1 | 20700 | 11600 | 11000 | 8400 | 7100 | 12000 | 62/32 | ZZ | LLB | LLH | LLU | N | NR | 62.6 | 3.28 | 1.9 | 0.6 | 70.7 | 1.7 | |
| 75 | 20 | 1.1 | 29800 | 16900 | 9500 | 7700 | 6500 | 11000 | 63/32* | ZZ | LLB | LLH | LLU | N | NR | 71.83 | 3.28 | 1.9 | 0.6 | 81.6 | 1.7 | |
| 35 | 47 | 7 | 0.3 | 4900 | 4050 | 13000 | – | – | 16000 | 6807* | ZZ | LLB | – | LLU | N | NR | 45.7 | 1.3 | 0.95 | 0.25 | 49.8 | 0.85 |
| 55 | 10 | 0.6 | 9550 | 6850 | 12000 | – | 7100 | 15000 | 6907 | ZZ | LLB | – | LLU | N | NR | 53.7 | 1.7 | 0.95 | 0.25 | 57.8 | 0.85 | |
| 62 | 9 | 0.3 | 11700 | 8200 | 12000 | – | – | 14000 | 16007* | – | – | – | – | – | – | – | – | – | – | – | – | |
| 62 | 14 | 1 | 16000 | 10300 | 12000 | 8200 | 6800 | 14000 | 6007 | ZZ | LLB | LLH | LLU | N | NR | 59.61 | 2.08 | 1.9 | 0.6 | 67.7 | 1.7 | |
| 72 | 17 | 1.1 | 25700 | 15300 | 9800 | 7600 | 6300 | 11000 | 6207 | ZZ | LLB | LLH | LLU | N | NR | 68.81 | 3.28 | 1.9 | 0.6 | 78.6 | 1.7 | |
| 80 | 21 | 1.5 | 33500 | 19100 | 8800 | 7300 | 6000 | 10000 | 6307 | ZZ | LLB | LLH | LLU | N | NR | 76.81 | 3.28 | 1.9 | 0.6 | 86.6 | 1.7 | |
| 52 | 7 | 0.3 | 5100 | 4400 | 12000 | – | – | 14000 | 6808 | ZZ | LLB | – | LLU | N | NR | 50.7 | 1.3 | 0.95 | 0.25 | 54.8 | 0.85 | |
| 40 | 62 | 12 | 0.6 | 12200 | 8900 | 11000 | – | 6300 | 13000 | 6908 | ZZ | LLB | – | LLU | N | NR | 60.7 | 1.7 | 0.95 | 0.25 | 64.8 | 0.85 |
| 68 | 9 | 0.3 | 12600 | 9650 | 10000 | – | – | 12000 | 16008* | – | – | – | – | – | – | – | – | – | – | – | – | |
| 68 | 15 | 1 | 16800 | 11500 | 10000 | 7300 | 6100 | 12000 | 6008 | ZZ | LLB | LLH | LLU | N | NR | 64.82 | 2.49 | 1.9 | 0.6 | 74.6 | 1.7 | |
| 80 | 18 | 1.1 | 29100 | 17800 | 8700 | 6700 | 5600 | 10000 | 6208 | ZZ | LLB | LLH | LLU | N | NR | 76.81 | 3.28 | 1.9 | 0.6 | 86.6 | 1.7 | |
| 90 | 23 | 1.5 | 40500 | 24000 | 7800 | 6400 | 5300 | 9200 | 6308 | ZZ | LLB | LLH | LLU | N | NR | 86.79 | 3.28 | 2.7 | 0.6 | 96.5 | 2.46 | |
| 45 | 58 | 7 | 0.3 | 5350 | 4950 | 11000 | – | 5900 | 12000 | 6809* | ZZ | LLB | – | LLU | N | NR | 56.7 | 1.3 | 0.95 | 0.25 | 60.8 | 0.85 |
| 68 | 12 | 0.6 | 13100 | 10400 | 9800 | – | 5600 | 12000 | 6909 | ZZ | LLB | – | LLU | N | NR | 66.7 | 1.7 | 0.95 | 0.25 | 70.8 | 0.85 | |
| 75 | 10 | 0.6 | 12900 | 10500 | 9200 | – | – | 11000 | 16009* | – | – | – | – | – | – | – | – | – | – | – | – | |
| 75 | 16 | 1 | 21000 | 15100 | 9200 | 6500 | 5400 | 11000 | 6009 | ZZ | LLB | LLH | LLU | N | NR | 71.83 | 2.49 | 1.9 | 0.6 | 81.6 | 1.7 | |
| 85 | 19 | 1.1 | 32500 | 20400 | 7800 | 6200 | 5200 | 9200 | 6209 | ZZ | LLB | LLH | LLU | N | NR | 81.81 | 3.28 | 1.9 | 0.6 | 91.6 | 1.7 | |
| 100 | 25 | 1.5 | 53000 | 32000 | 7000 | 5600 | 4700 | 8200 | 6309 | ZZ | LLB | LLH | LLU | N | NR | 96.8 | 3.28 | 2.7 | 0.6 | 106.5 | 2.46 | |
| 50 | 65 | 7 | 0.3 | 6600 | 6100 | 9600 | – | 5300 | 11000 | 6810 | ZZ | LLB | – | LLU | N | NR | 63.7 | 1.3 | 0.95 | 0.25 | 67.8 | 0.85 |
| 72 | 12 | 0.6 | 13400 | 11200 | 8900 | – | 5100 | 11000 | 6910* | ZZ | LLB | – | LLU | N | NR | 70.7 | 1.7 | 0.95 | 0.25 | 74.8 | 0.85 | |
| 80 | 10 | 0.6 | 13200 | 11300 | 8400 | – | – | 9800 | 16571 | – | – | – | – | – | – | – | – | – | – | – | – | |
| 80 | 16 | 1 | 21800 | 16600 | 8400 | 6000 | 5000 | 9800 | 6571 | ZZ | LLB | LLH | LLU | N | NR | 76.81 | 2.49 | 1.9 | 0.6 | 86.6 | 1.7 | |
| 90 | 20 | 1.1 | 35000 | 23200 | 7100 | 5700 | 4700 | 8300 | 6210 | ZZ | LLB | LLH | LLU | N | NR | 86.79 | 3.28 | 2.7 | 0.6 | 96.5 | 2.46 | |
| 110 | 27 | 2 | 62000 | 38500 | 6400 | 5000 | 4200 | 7500 | 6310 | ZZ | LLB | LLH | LLU | N | NR | 106.81 | 3.28 | 2.7 | 0.6 | 116.6 | 2.46 | |
| 55 | 72 | 9 | 0.3 | 8800 | 8100 | 8700 | – | 4800 | 10000 | 6811* | ZZ | LLB | – | LLU | N | NR | 70.7 | 1.7 | 0.95 | 0.25 | 74.8 | 0.85 |
| 80 | 13 | 1 | 16000 | 13300 | 8200 | – | 4600 | 9600 | 6911* | ZZ | LLB | – | LLU | N | NR | 77.9 | 2.1 | 1.3 | 0.4 | 84.4 | 1.12 | |
| 90 | 11 | 0.6 | 18600 | 15300 | 7700 | – | – | 9000 | 16011* | – | – | – | – | – | – | – | – | – | – | – | – | |
| 90 | 18 | 1.1 | 28300 | 21200 | 7700 | – | 4500 | 9000 | 6011 | ZZ | LLB | – | LLU | N | NR | 86.79 | 2.87 | 2.7 | 0.6 | 96.5 | 2.46 | |
| 100 | 21 | 1.5 | 43500 | 29200 | 6400 | – | 4300 | 7600 | 6211* | ZZ | LLB | – | LLU | N | NR | 96.8 | 3.28 | 2.7 | 0.6 | 106.5 | 2.46 | |
| 120 | 29 | 2 | 71500 | 45000 | 5800 | – | 3900 | 6800 | 6311 | ZZ | LLB | – | LLU | N | NR | 115.21 | 4.06 | 3.1 | 0.6 | 129.7 | 2.82 | |
| 60 | 78 | 10 | 0.3 | 11500 | 10600 | 8000 | – | 4400 | 9400 | 6812* | ZZ | LLB | – | LLU | N | NR | 76.2 | 1.7 | 1.3 | 0.4 | 82.7 | 1.12 |
| 85 | 13 | 1 | 16400 | 14300 | 7600 | – | 4300 | 8900 | 6912* | ZZ | LLB | – | LLU | N | NR | 82.9 | 2.1 | 1.3 | 0.4 | 89.4 | 1.12 | |
| 95 | 11 | 0.6 | 20000 | 17500 | 7000 | – | – | 8300 | 16012* | – | – | – | – | – | – | – | – | – | – | – | – | |
| 95 | 18 | 1.1 | 29500 | 23200 | 7000 | – | 4100 | 8300 | 6012* | ZZ | LLB | – | LLU | N | NR | 91.82 | 2.87 | 2.7 | 0.6 | 101.6 | 2.46 | |
| 110 | 22 | 1.5 | 52500 | 36000 | 6000 | – | 3800 | 7000 | 6212 | ZZ | LLB | – | LLU | N | NR | 106.81 | 3.28 | 2.7 | 0.6 | 116.6 | 2.46 | |
| 130 | 31 | 2.1 | 82000 | 52000 | 5400 | – | 3600 | 6300 | 6312 | ZZ | LLB | – | LLU | N | NR | 125.22 | 4.06 | 3.1 | 0.6 | 139.7 | 2.82 | |
| 65 | 140 | 33 | 2.1 | 92500 | 60000 | 4900 | – | – | 5800 | 6313 | – | – | – | – | – | – | – | – | – | – | – | – |
| 70 | 150 | 35 | 3 | 104000 | 68000 | 4100 | – | – | 4800 | 6314* | – | – | – | – | – | – | – | – | – | – | – | – |
| Abutment and fillet dimensions (mm) | Weight (kg) | |||||||
| da | Da | ra | Dx | CY | CZ | rNa | Open (Approx) | |
| min | max | max | max | (Approx.) | max | max | max | |
| 12 | 12.5 | 17 | 0.3 | – | – | – | – | 0.005 |
| 12 | 13 | 20 | 0.3 | 25.5 | 1.5 | 0.7 | 0.3 | 0.009 |
| 12 | 13.5 | 24 | 0.3 | – | – | – | – | 0.019 |
| 14 | 16 | 26 | 0.6 | 35.5 | 2.9 | 1.2 | 0.5 | 0.032 |
| 14 | 17 | 31 | 0.6 | 40.5 | 2.9 | 1.2 | 0.5 | 0.053 |
| 14 | 14.5 | 19 | 0.3 | – | – | – | – | 0.006 |
| 14 | 15 | 22 | 0.3 | 27.5 | 1.5 | 0.7 | 0.3 | 0.011 |
| 14 | – | 26 | 0.3 | – | – | – | – | 0.019 |
| 14 | 16 | 26 | 0.3 | – | – | – | – | 0.571 |
| 16 | 17 | 28 | 0.6 | 37.5 | 2.9 | 1.2 | 0.5 | 0.037 |
| 17 | 18.5 | 32 | 1 | 42 | 2.9 | 1.2 | 0.5 | 0.06 |
| 17 | 17.5 | 22 | 0.3 | – | – | – | – | 0.007 |
| 17 | 17.5 | 26 | 0.3 | 31.5 | 1.9 | 0.9 | 0.3 | 0.016 |
| 17 | – | 30 | 0.3 | – | – | – | – | 0.571 |
| 17 | 19 | 30 | 0.3 | 37.5 | 2.9 | 1.2 | 0.3 | 0.03 |
| 19 | 20 | 31 | 0.6 | 40.5 | 2.9 | 1.2 | 0.5 | 0.045 |
| 20 | 23 | 37 | 1 | 47 | 2.9 | 1.2 | 0.5 | 0.082 |
| 19 | 19.5 | 24 | 0.3 | – | – | – | – | 0.008 |
| 19 | 20 | 28 | 0.3 | 33.5 | 1.9 | 0.9 | 0.3 | 0.018 |
| 19 | – | 33 | 0.3 | – | – | – | – | 0.032 |
| 19 | 21 | 33 | 0.3 | 40.5 | 2.9 | 1.2 | 0.3 | 0.039 |
| 21 | 23 | 36 | 0.6 | 45.5 | 2.9 | 1.2 | 0.5 | 0.066 |
| 22 | 25 | 42 | 1 | 53.5 | 3.3 | 1.2 | 0.5 | 0.115 |
| 22 | 22.5 | 30 | 0.3 | 35.5 | 1.9 | 0.9 | 0.3 | 0.019 |
| 22 | 24 | 35 | 0.3 | 40.5 | 2.3 | 0.9 | 0.3 | 0.036 |
| 22 | – | 40 | 0.3 | – | – | – | – | 0.051 |
| 24 | 26 | 38 | 0.6 | 47 | 2.9 | 1.2 | 0.5 | 0.069 |
| 25 | 28 | 42 | 1 | 53.5 | 3.3 | 1.2 | 0.5 | 0.106 |
| 26.5 | 28.5 | 45.5 | 1 | 58.5 | 3.3 | 1.2 | 0.5 | 0.144 |
| 26 | 26.5 | 40 | 0.6 | 49 | 2.9 | 1.2 | 0.5 | 0.074 |
| 27 | 29.5 | 45 | 1 | 56.5 | 3.3 | 1.2 | 0.5 | 0.117 |
| 28.5 | 31 | 49.5 | 1 | 62.5 | 3.3 | 1.2 | 0.5 | 0.176 |
| 27 | 28 | 35 | 0.3 | 40.5 | 1.9 | 0.9 | 0.3 | 0.571 |
| 27 | 29 | 40 | 0.3 | 45.5 | 2.3 | 0.9 | 0.3 | 0.042 |
| 27 | – | 45 | 0.3 | – | – | – | – | 0.06 |
| 29 | 30.5 | 43 | 0.6 | 53.5 | 2.9 | 1.2 | 0.5 | 0.08 |
| 30 | 32 | 47 | 1 | 58.5 | 3.3 | 1.2 | 0.5 | 0.128 |
| 31.5 | 35 | 55.5 | 1 | 68.5 | 4.6 | 1.7 | 0.5 | 0.232 |
| 33 | – | 72 | 1.5 | – | – | – | – | 0.53 |
| 32 | 34 | 48 | 0.6 | 58.5 | 2.9 | 1.2 | 0.5 | 0.098 |
| 33 | 35.5 | 53 | 1 | 64.5 | 3.3 | 1.2 | 0.5 | 0.171 |
| 34.5 | 38.5 | 61.5 | 1 | 76 | 4.6 | 1.7 | 0.5 | 0.284 |
| 32 | 33 | 40 | 0.3 | 45.5 | 1.9 | 0.9 | 0.3 | 0.026 |
| 32 | 34 | 45 | 0.3 | 50.5 | 2.3 | 0.9 | 0.3 | 0.048 |
| 32 | – | 53 | 0.3 | – | – | – | – | 0.091 |
| 35 | 37 | 50 | 1 | 61.5 | 2.9 | 1.2 | 0.5 | 0.116 |
| 35 | 39 | 57 | 1 | 68.5 | 4.6 | 1.7 | 0.5 | 0.199 |
| 36.5 | 43 | 65.5 | 1 | 80 | 4.6 | 1.7 | 0.5 | 0.36 |
| 37 | 39 | 53 | 1 | 64.5 | 2.9 | 1.2 | 0.5 | 0.129 |
| 37 | 40 | 60 | 1 | 71.5 | 4.6 | 1.7 | 0.5 | 0.226 |
| 38.5 | 43.5 | 68.5 | 1 | 83 | 4.6 | 1.7 | 0.5 | 0.382 |
| 37 | 38 | 45 | 0.3 | 50.5 | 1.9 | 0.9 | 0.3 | 0.571 |
| 39 | 40 | 51 | 0.6 | 58.8 | 2.3 | 0.9 | 0.5 | 0.074 |
| 37 | – | 60 | 0.3 | – | – | – | – | 0.11 |
| 40 | 42 | 57 | 1 | 68.5 | 3.4 | 1.7 | 0.5 | 0.155 |
| 41.5 | 45 | 65.5 | 1 | 80 | 4.6 | 1.7 | 0.5 | 0.288 |
| 43 | 47 | 72 | 1.5 | 88 | 4.6 | 1.7 | 0.5 | 0.457 |
| 42 | 43 | 50 | 0.3 | 55.5 | 1.9 | 0.9 | 0.3 | 0.033 |
| 44 | 45 | 58 | 0.6 | 65.5 | 2.3 | 0.9 | 0.5 | 0.11 |
| 42 | – | 66 | 0.3 | – | – | – | – | 0.125 |
| 45 | 47 | 63 | 1 | 76 | 3.8 | 1.7 | 0.5 | 0.19 |
| 46.5 | 51 | 73.5 | 1 | 88 | 4.6 | 1.7 | 0.5 | 0.366 |
| 48 | 54 | 82 | 1.5 | 98 | 5.4 | 2.5 | 0.5 | 0.63 |
| 47 | 48 | 56 | 0.3 | 61.5 | 1.9 | 0.9 | 0.3 | 0.04 |
| 49 | 51 | 64 | 0.6 | 72 | 2.3 | 0.9 | 0.5 | 0.128 |
| 49 | – | 71 | 0.6 | – | – | – | – | 0.171 |
| 50 | 52.5 | 70 | 1 | 83 | 3.8 | 1.7 | 0.5 | 0.237 |
| 51.5 | 55.5 | 78.5 | 1 | 93 | 4.6 | 1.7 | 0.5 | 0.398 |
| 53 | 61.5 | 92 | 1.5 | 108 | 5.4 | 2.5 | 0.5 | 0.814 |
| 52 | 54 | 63 | 0.3 | 68.5 | 1.9 | 0.9 | 0.3 | 0.052 |
| 54 | 55.5 | 68 | 0.6 | 76 | 2.3 | 0.9 | 0.5 | 0.132 |
| 54 | – | 76 | 0.6 | – | – | – | – | 0.18 |
| 55 | 57.5 | 75 | 1 | 88 | 3.8 | 1.7 | 0.5 | 0.261 |
| 56.5 | 60 | 83.5 | 1 | 98 | 5.4 | 2.5 | 0.5 | 0.454 |
| 59 | 68.5 | 101 | 2 | 118 | 5.4 | 2.5 | 0.5 | 1.07 |
| 57 | 59 | 70 | 0.3 | 76 | 2.3 | 0.9 | 0.3 | 0.083 |
| 60 | 61.5 | 75 | 1 | 86 | 2.9 | 1.2 | 0.5 | 0.18 |
| 59 | – | 86 | 0.6 | – | – | – | – | 0.258 |
| 61.5 | 64 | 83.5 | 1 | 98 | 5 | 2.5 | 0.5 | 0.388 |
| 63 | 67 | 92 | 1.5 | 108 | 5.4 | 2.5 | 0.5 | 0.601 |
| 64 | 74 | 111 | 2 | 131.5 | 6.5 | 2.9 | 0.5 | 1.37 |
| 62 | 64.5 | 76 | 0.3 | 87 | 2.5 | 1.2 | 0.3 | 0.106 |
| 65 | 66.5 | 80 | 1 | 91 | 2.9 | 1.2 | 0.5 | 0.193 |
| 64 | – | 91 | 0.6 | – | – | – | – | 0.283 |
| 66.5 | 69 | 88.5 | 1 | 103 | 5 | 2.5 | 0.5 | 0.414 |
| 68 | 75 | 102 | 1.5 | 118 | 5.4 | 2.5 | 0.5 | 0.783 |
| 71 | 80.5 | 119 | 2 | 141.5 | 6.5 | 2.9 | 0.5 | 1.73 |
| 76 | – | 129 | 2 | – | – | – | – | 2.08 |
| 81 | – | 139 | 2 | – | – | – | – | 2.52 |
FACTORY DETAILED PROCESSING PHOTOS
HIGH QUALITY CONTROL SYSTEM
FAQ
1. Why choose CZPT China?
Over the past 17 years, CZPT has always insisted that “products and services” start from Japanese industry standards,taking ZheJiang standards as the bottom line, actively invest in the development of new transmission components and self-experiment and test. With the service tenet of “exceeding customer expectations”, establish a “trusted” partnership.
2. What is your main products ?
We are a leading manufacturer and distributor of linear motion components in China. Especially miniature size of Ball Screws and Linear Actuators and linear motion guideways. Our brand “KGG” stands for ” Know-how,” ” Great Quality,” and ” Good value” and our factory is located in the most advanced city in China: ZheJiang with the best equipment and sophisticated technology, completely strict quality control system. Our aim is to supply world leader class linear motion components but with most reasonable price in the world.
3. How to Custom-made (OEM/ODM)?
If you have a product drawing or a sample, please send to us, and we can custom-made the as your required. We will also provide our professional advices of the products to make the design to be more realized & maximize the performance.
4. When can I get the quotation?
We usually quote within 24 hours after we get your inquiry. If you are very urgent to get the price,please call us or tell us in your email so that we will regard your inquiry priority.
5. How can I get a sample to check the quality?
After confirmation of our quoted price, you can place the sample order. The sample will be started after you sign back our detailed technical file.
6. What’s your payment terms?
Our payment terms is 30% deposit,balance 70% before shipment. /* 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
| Inner Diameter: | 20mm |
|---|---|
| Outer Diameter: | 37mm |
| Width: | 9mm |
| Weight: | 0.036kg |
| Aligning: | Aligning Bearing |
| Separated: | Unseparated |
| 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.

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 2024-04-16
China Best Sales China Slewing Ring Bearing 062.25.1455.500.11.1503 with Internal Gear Ball Bearing for Forest machinery bearing assembly
Product Description
China Slewing Ring Bearing 062.25.1455.500.11.1503 With Internal Gear Ball Bearing For Forest Machiney
Four-point contact ball slewing turntable bearings
consist of 2 ring seats. Compact structure, light weight, steel ball and arc track contact at 4 points, can bear axial force, radial force and overturning moment at the same time, has strong dynamic load.
Single row cross roller slewing bearing
Composed of 2 or 3 rings. compact structure, light weight, high manufacturing accuracy, small assembly gap and high requirement for installation accuracy. Rollers are 1:1 cross-arranged.
Can be bear axial force, overturning moment and large radial force at the same time,and widely used in lifting transportation, construction machinery and precesion products.
Double row ball slewing bearings
This kind of bearings can support high static loads with simple structures. They are mainly used in situations with variation load position and direction and continuously rotating. Main applications of this kind of bearings are deck hoisting, mining and material handling etc.
Three row roller slewing bearing
Three row roller bearing CZPT to bear all kinds of loads at the same time, it is the largest 1 of the 4 structural products with large axle and radial dimensions and firm structure. Especially suitable for heavy machinery requiring larger diameter, such as bucket wheel stacker and reclaimer, wheel crane, marine crane, port crane, ladle turret,large tonnage truck crane,heavy machinery and so on.
| Type | • Single row 4 point contact ball slewing bearing • Single row crossed cylindrical roller slewing bearings • Double row ball slewing bearings •Double row Roller/ball combination slewing bearing •Three-Row Roller Slew Ring Bearing |
| Rolling elements | Steel ball / Cylinder Roller |
| Rolling elements Material | GCr5/GCr15SiMn/Customized |
| Bearing Material | 50Mn/42CrMo/42CrMo4V /Customized |
| Cage Material | Nylon/ steel /copper |
| Structure | taper pin , Mounting holes,Inner ring ,grease fitting,load plug, seals , roller ,spacer balls or separators |
| Outer diameter | 50-10000mm |
| Bore size | 50-10000mm |
| Mounting hole | Through hole/Tapped hole |
| Raceway hardness | 55-62HRC |
| Inner and outer ring modulation hardness |
229-269HB/Customized |
| Gear type | No gear ,Internal gear , External gear. |
| Embellish grease | EP2 lithium lubricating grease |
| Certificate | ABS.BV,DNV,ISO9001,GL,3.1,3.2 |
| Application area | Ladle turret,Stacker crane,Bucket wheel machine,Solar heliostat Tracking System,port crane, Cabling machine,tower crane , offshore platform,ferris wheel, Palletizing robot,Rotary metallurgical furnace,can packing machine,Wind blade transporter,shield tunneling machine,tube push bench,excavator |
| Brand Name | LYMC |
| Place of Origin | HangZhou ZheJiang |
| Warranty | 12 months |
| Payment term | T/T is our first choice |
|
Packing details |
1,Filling with anti-rust oil 2.Corved with Plastic paper 3.Corved with kraft paper 4.Corved with Blue tie 5.Put in wooden box |
Product Process
Application:
– Excavators – Drilling rigs – Mining Equipments – Cranes -Offshore Equipments – Vehicles – Machine Tools – Wind Turbines
About Us:
HangZhou MC Bearing Technology Co.,Ltd (LYMC),who is manufacture located in bearing zone, focus on Slewing bearing, cross roller bearing and pinion,Dia from 50mm-8000mm, Our team with technical and full experience in the bearing industry.
*Professional in researching, developing, producing & marketing high precision bearings for 16 years;
*Many series bearings are on stock; Factory directly provide, most competitive price;
*Advanced CNC equipment, guarantee product accuracy & stability;
*One stop purchasing, product include cross roller bearing, rotary table bearing, robotic bearing, slewing bearing, angular contact ball bearing, large and extra large custom made bearing, diameter from 50~9000mm;
*Excellent pre-sale & after sale service. We can go to customers’ project site if needed.
*Professional technical & exporting team ensure excellent product design, quotation, delivering, documentation & custom clearance.
Our Service:
FAQ:
1.Q: Are you trading company or manufacturer ?
A: We are professional slewing bearing manufacturer with 20 years’ experience.
2.Q: How long is your delivery time?
A: Generally it is 4-5 days if the goods are in stock. or it is 45 days if the goods are not in
stock, Also it is according to quantity.
3.Q: Do you provide samples ? is it free or extra ?
A: Yes, we could offer the sample, it is extra.
4.Q: What is your terms of payment ?
A: Payment=1000USD, 30% T/T in advance, balance before shipment.
5.Q: Can you provide special customization according to the working conditions?
A: Sure, we can design and produce the slewing bearings for different working conditions.
6.Q: How about your guarantee?
A: We provide lifelong after-sales technical service.
/* 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
| Standard or Nonstandard: | Standard |
|---|---|
| Feature: | High Speed, Cold-Resistant, Corrosion-Resistant, Heat-Resistant |
| Sealing Gland: | Sealed On Both Sides |
| Rolling-Element Number: | Single-Row |
| Roller Type: | Straight Raceway |
| Material: | 50mn/42CrMo |
| 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.

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 do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?
Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here’s a comparison of ball bearings and roller bearings:
- Design:
Ball Bearings: Ball bearings use spherical balls to separate and reduce friction between the bearing’s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.
Roller Bearings: Roller bearings, as the name suggests, use cylindrical or tapered rollers instead of balls. These rollers have larger contact areas, distributing loads over a broader surface.
- Friction and Efficiency:
Ball Bearings: Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.
Roller Bearings: Roller bearings have a larger contact area, resulting in slightly higher friction compared to ball bearings. They are more suitable for heavy-load applications where efficiency is prioritized over high speeds.
- Load Capacity:
Ball Bearings: Ball bearings excel at handling light to moderate loads in both radial and axial directions. They are commonly used in applications where smooth rotation and low friction are important.
Roller Bearings: Roller bearings have a higher load-carrying capacity than ball bearings. They can support heavier radial and axial loads and are preferred for applications with significant loads or impact forces.
- Variability:
Ball Bearings: Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.
Roller Bearings: Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.
- Speed Capability:
Ball Bearings: The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.
Roller Bearings: Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.
- Applications:
Ball Bearings: Ball bearings are used in applications where smooth motion, low friction, and moderate loads are essential, such as electric fans, bicycles, and some automotive components.
Roller Bearings: Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.
In summary, ball bearings and roller bearings differ in their design, friction characteristics, load capacities, speed capabilities, and applications. The choice between them depends on the specific requirements of the machinery and the type of loads and forces involved.


editor by CX 2024-04-16
China Standard Chrome Steel Bearing Supplie 6310 6308 6306 6304 Zz 2RS Open Type Deep Groove Ball Bearing for Automobiles Tractors Machine Tools Motors Agricultural Machinery bearing assembly
Product Description
Product Description
6310 / 6310-2RS / 6310-ZZ deep groove ball bearing
6206 deep groove ball bearing is the most common type of rolling bearing. The basic deep groove ball bearing consists of an outer ring, an inner circle, a set of steel balls and a set of maintenance frames.
6206 deep groove ball bearing is sealed and open 2 kinds of structure, open without sealing structure refers to the bearing, seal type deep groove ball into dust seal and oil seal. The dust – proof sealing material is a sheet metal stamping, which simply prevents the dust from entering the bearing roller. The oil-proof type is the contact oil seal, which can effectively prevent the grease spillover inside the bearing.
Deep groove ball bearing
Single row deep groove ball bearings are particularly versatile, have low friction and are optimized for low noise and low vibration, which enables high rotational speeds. They accommodate radial and axial loads in both directions, are easy to mount, and require less maintenance than many other bearing types.
- Simple, versatile and robust design
- Low friction
- High-speed capability
- Accommodate radial and axial loads in both directions
- Require little maintenance
More series of deep groove ball bearing
Tip: Here are only part of the model numbers. Please contact us for full catalog.
| Deep Groove Ball Bearing Catalog | ||||||||
| Number | Specification | Rated Load(KN) | Speed(r/min) | Weight | ||||
| D(mm) | D(mm) | W(mm) | Cr(N) | Cor(N) | Grease | Oil | kg | |
| 6000 | 10 | 26 | 8 | 4.55 | 1.96 | 20000 | 28000 | 0.019 |
| 6001 | 12 | 28 | 8 | 5.1 | 2.39 | 19000 | 26000 | 0.571 |
| 6002 | 15 | 32 | 9 | 5.6 | 2.84 | 18000 | 24000 | 0.03 |
| 6003 | 17 | 35 | 10 | 6.8 | 3.35 | 17000 | 22000 | 0.039 |
| 6004 | 20 | 42 | 12 | 9.4 | 5.05 | 15000 | 19000 | 0.069 |
| 6005 | 25 | 47 | 12 | 10.1 | 5.85 | 13000 | 17000 | 0.08 |
| 6006 | 30 | 55 | 13 | 13.2 | 8.3 | 12000 | 15000 | 0.116 |
| 6007 | 35 | 62 | 14 | 16 | 10.3 | 10000 | 13000 | 0.155 |
| 6008 | 40 | 68 | 15 | 16.8 | 11.5 | 8000 | 11000 | 0.185 |
| 6009 | 45 | 75 | 16 | 21 | 15.1 | 7200 | 9000 | 0.231 |
| 6571 | 50 | 80 | 16 | 21.8 | 16.6 | 6400 | 7800 | 0.25 |
| 6011 | 55 | 90 | 18 | 28.3 | 21.2 | 5700 | 7000 | 0.362 |
| 6012 | 60 | 95 | 18 | 29.5 | 23.2 | 5300 | 6300 | 0.385 |
| 6013 | 65 | 100 | 18 | 30.5 | 25.2 | 5040 | 6000 | 0.421 |
| 6014 | 70 | 110 | 20 | 38 | 31 | 4800 | 5600 | 0.604 |
| 6015 | 75 | 115 | 20 | 39.5 | 33.5 | 4480 | 5360 | 0.604 |
| 6016 | 80 | 125 | 22 | 47.5 | 40 | 4240 | 5040 | 0.854 |
| 6017 | 85 | 130 | 22 | 49.5 | 43 | 4000 | 4800 | 0.89 |
| 6018 | 90 | 140 | 24 | 58 | 49.5 | 3840 | 4480 | 1.02 |
| 6019 | 95 | 145 | 24 | 60.5 | 54 | 3600 | 4240 | 1.08 |
| 6571 | 100 | 150 | 24 | 60 | 54 | 3440 | 4000 | 1.15 |
| 6571 | 105 | 160 | 26 | 72.5 | 65.5 | 3200 | 3840 | 1.59 |
| 6571 | 110 | 170 | 28 | 82 | 73 | 3040 | 3600 | 1.96 |
| 6571 | 120 | 180 | 28 | 85 | 79.5 | 2720 | 3200 | 2.07 |
| 6026 | 130 | 200 | 33 | 106 | 101 | 2560 | 3040 | 3.16 |
| 6571 | 140 | 210 | 33 | 110 | 109 | 2400 | 2880 | 3.35 |
| 6030 | 150 | 225 | 35 | 126 | 126 | 2080 | 2560 | 4.08 |
| 6032 | 160 | 240 | 38 | 143 | 144 | 1920 | 2400 | 5.05 |
| 6200 | 10 | 30 | 9 | 4.056 | 1.888 | 19200 | 24000 | 0.032 |
| 6201 | 12 | 32 | 10 | 5.512 | 2.48 | 17600 | 22400 | 0.037 |
| 6202 | 15 | 35 | 11 | 6.24 | 3 | 15200 | 19200 | 0.045 |
| 6203 | 17 | 40 | 12 | 7.648 | 3.8 | 13600 | 16000 | 0.065 |
| 6204 | 20 | 47 | 14 | 10.16 | 5.24 | 12000 | 14400 | 0.11 |
| 6205 | 25 | 52 | 15 | 11.2 | 6.24 | 9600 | 12000 | 0.13 |
| 6206 | 30 | 62 | 16 | 15.6 | 8.96 | 8000 | 10400 | 0.2 |
| 6207 | 35 | 72 | 17 | 20.4 | 12.24 | 7200 | 8800 | 0.29 |
| 6208 | 40 | 8 | 18 | 24.56 | 15.2 | 6800 | 8000 | 0.37 |
| 6209 | 45 | 85 | 19 | 26.56 | 17.28 | 6000 | 7200 | 0.41 |
| 6210 | 50 | 90 | 20 | 28.08 | 18.56 | 5600 | 6800 | 0.46 |
| 6211 | 55 | 100 | 21 | 34.88 | 23.2 | 5040 | 6000 | 0.61 |
| 6212 | 60 | 110 | 22 | 38 | 26 | 4800 | 5600 | 0.78 |
| 6213 | 65 | 120 | 23 | 44.72 | 32.4 | 4240 | 5040 | 0.99 |
| 6214 | 70 | 125 | 24 | 48.4 | 36 | 4000 | 4800 | 1.05 |
| 6215 | 75 | 130 | 25 | 53.04 | 39.2 | 4480 | 5360 | 1.2 |
| 6216 | 80 | 140 | 26 | 56.16 | 44 | 3600 | 4240 | 1.4 |
| 6217 | 85 | 150 | 28 | 66.56 | 51.2 | 3440 | 4000 | 1.8 |
| 6218 | 90 | 160 | 30 | 76.48 | 58.8 | 3040 | 3600 | 2.15 |
| 6219 | 95 | 170 | 32 | 86.4 | 65.2 | 2880 | 3440 | 2.6 |
| 6220 | 100 | 180 | 34 | 99.2 | 74.4 | 2720 | 3200 | 3.15 |
| 6221 | 105 | 190 | 36 | 106.4 | 83.2 | 2560 | 3040 | 3.7 |
| 6222 | 110 | 200 | 38 | 114.4 | 94.4 | 2400 | 2880 | 4.35 |
| 6224 | 120 | 215 | 40 | 116.8 | 94.4 | 2240 | 2720 | 5.15 |
| 6226 | 130 | 230 | 40 | 124.8 | 105.6 | 2080 | 2560 | 5.8 |
| 6228 | 140 | 250 | 42 | 132 | 120 | 1920 | 2400 | 7.45 |
| 6230 | 150 | 270 | 45 | 139.2 | 132.8 | 1600 | 2080 | 9.4 |
| 6232 | 160 | 290 | 48 | 148.8 | 148.8 | 1520 | 1920 | 14.5 |
| 6234 | 170 | 310 | 52 | 169.6 | 179.2 | 1520 | 1920 | 17.5 |
| 6236 | 180 | 320 | 52 | 183.2 | 192 | 1440 | 1760 | 18.5 |
| 6238 | 190 | 340 | 55 | 204 | 224 | 1360 | 1600 | 23 |
| 6240 | 200 | 360 | 58 | 216 | 248 | 1360 | 1600 | 28 |
| 6244 | 220 | 400 | 65 | 236.8 | 292 | 1200 | 1440 | 37 |
| 6248 | 240 | 440 | 72 | 286.4 | 380 | 1040 | 1280 | 51 |
| 6252 | 260 | 480 | 80 | 312 | 424 | 880 | 1120 | 65.5 |
| 6256 | 280 | 500 | 80 | 338.4 | 480 | 880 | 1120 | 71 |
| 6300 | 10 | 35 | 11 | 6.448 | 2.72 | 16000 | 20800 | 0.053 |
| 6301 | 12 | 37 | 12 | 7.8 | 3.32 | 15200 | 19200 | 0.06 |
| 6302 | 15 | 42 | 13 | 9.12 | 4.32 | 13600 | 16000 | 0.082 |
| 6303 | 17 | 47 | 14 | 10.8 | 5.24 | 12800 | 15200 | 0.12 |
| 6304 | 20 | 52 | 15 | 12.72 | 6.24 | 10400 | 12800 | 0.14 |
| 6305 | 25 | 62 | 17 | 18 | 9.28 | 8800 | 11200 | 0.23 |
| 6306 | 30 | 72 | 19 | 22.48 | 12.8 | 7200 | 8800 | 0.35 |
| 6307 | 35 | 80 | 21 | 26.56 | 15.2 | 6800 | 8000 | 0.46 |
| 6308 | 40 | 90 | 23 | 32.8 | 19.2 | 6000 | 7200 | 0.63 |
| 6309 | 45 | 100 | 25 | 42.16 | 25.2 | 53600 | 6400 | 0.83 |
| 6310 | 50 | 110 | 27 | 49.44 | 30.4 | 5040 | 6000 | 1.05 |
| 6311 | 55 | 120 | 29 | 57.2 | 36 | 4480 | 5360 | 1.35 |
| 6312 | 60 | 130 | 31 | 65.52 | 41.6 | 4000 | 4800 | 1.7 |
| 6313 | 65 | 140 | 33 | 73.84 | 48 | 3840 | 4480 | 2.1 |
| 6314 | 70 | 150 | 35 | 83.2 | 54.4 | 3600 | 4240 | 2.5 |
| 6315 | 75 | 160 | 37 | 91.2 | 61.2 | 3440 | 4000 | 3 |
| 6316 | 80 | 170 | 39 | 99.2 | 69.2 | 3040 | 3600 | 3.6 |
| 6317 | 85 | 180 | 41 | 106.4 | 77.2 | 2880 | 3440 | 4.25 |
| 6318 | 90 | 190 | 43 | 114.4 | 86.4 | 2720 | 3200 | 4.9 |
| 6319 | 95 | 200 | 45 | 122.4 | 94.4 | 2560 | 3040 | 5.65 |
| 6320 | 100 | 215 | 47 | 139.2 | 112 | 2400 | 2880 | 7 |
| 6321 | 105 | 225 | 49 | 145.6 | 122.4 | 2240 | 2720 | 8.25 |
| 6322 | 110 | 240 | 50 | 162.4 | 144 | 2080 | 2560 | 9.55 |
| 6324 | 120 | 260 | 55 | 166.4 | 148.8 | 1920 | 2400 | 14.5 |
| 6326 | 130 | 280 | 58 | 183.2 | 172.8 | 1760 | 2240 | 18 |
| 6328 | 140 | 300 | 62 | 200.8 | 196 | 1600 | 2080 | 22 |
| 6330 | 150 | 320 | 65 | 220.8 | 228 | 1520 | 1920 | 26 |
| 6332 | 160 | 340 | 68 | 220.8 | 228 | 1440 | 1760 | 29 |
| 6334 | 170 | 360 | 72 | 249.6 | 272 | 1360 | 1600 | 34.5 |
| 6336 | 180 | 380 | 75 | 280.8 | 324 | 1280 | 1600 | 42.5 |
| 6338 | 190 | 400 | 78 | 296.8 | 344 | 1280 | 1520 | 49 |
| 6340 | 200 | 420 | 80 | 301.6 | 372 | 1200 | 1440 | 55.5 |
| 6344 | 220 | 460 | 88 | 328 | 416 | 1040 | 1280 | 72.5 |
Packaging & Shipping
Please contact us for more pictures of different packing.
|
Universal Packing |
Without any logo on bearings or packing. |
|
JDZ Packing |
With our brand JDZ on bearings and packing. |
|
Customized Packing |
Depends on buyer’s requirements. |
|
Original Brand Packing |
Bearing and packing are both original. Please contact us for pictures. |
QUALITY ASSURANCE
100% Quality inspection to ensure the bearings are with good quality before shipping.
Company Profile
ZheJiang CZPT Precision Bearing Co.,Ltd. was founded by ZheJiang Defa Bearing Co.,Ltd, factory is located in ZheJiang province, China.
We are a bearing manufacturer integrating the research, development and sales of bearings, with a floor area of 18,000 square meters and a plant area of 8,800 square meters. Equipped with modern production equipment and advanced detection instruments.
We can provide all types bearings and OEM service according to customers’ requirements.
Our products are widely used in the automobile, agricultural, textile production, mining, printing and packing industries, in addition to various applications at airports, in air-conditioning systems, conveying devices, ships ad so on. Our products are being exported to more than 50 countries and regions overseas including Singapore, Thailand, Iran, Turkey, Poland, Italy, England, France, Russia, Germany, the United States, Australia, Argentina, Brazil as well as other countries and regions all over the world.
We are a trusted and reliable bearing supplier, choose us to be your good partner!
Quality Inspection
FAQ
1. Q: Are you trading company or manufacturer ?
A: We have our own factory , our type is factory + trade.
2. Q: Could you accept OEM and customize?
A: Yes, we can customize products according to your sample or drawing.
3. Q: How long is your delivery time?
A: If stock, within 7 days to ship or based on your order quantity.
4. Q: Could you supply sample for free?
A: Yes, we can offer the sample for free,do you mind to buy a “ticket” for her?
More details, please contact with us. Thanks for your time!
/* 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(/(.*?):(.*)$/))&&1
| Bearing Type: | Deep Groove Ball Bearing |
|---|---|
| Precision Rating: | P0 P6 P5 P4 P2 or ABEC1 ABEC3 ABEC5 ABEC7 ABEC9 |
| Bearing Clearance: | C0/C3/C4 |
| Vibration: | Z1V1, Z2V2, Z3V3; Z4V4 |
| Seals Type: | Zz- 2RS Open |
| Hardness: | 58-62 HRC |
| Samples: |
US$ 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 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 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 2024-04-08
China high quality Automobile Roller Deep Groove Ball Rolling Bearings 6017-2RS 6018-2RS 6019-2RS 6020-2RS Engine Deep Groove Ball Bearings Industrial Machinery Parts Bearing bearing block
Product Description
Introduction:
Introducing Our Zero-Class Deep Groove Ball Bearings for Your Needs!
Looking to enhance the performance of your industrial machinery? Your search ends here! Our Zero-Class Deep Groove Ball Bearings are engineered to offer a myriad of advantages, making them the perfect choice for your requirements.
1. Exceptional Precision: Our bearings are crafted with meticulous precision, ensuring minimal friction and optimal performance, thus enhancing the efficiency of your machinery.
2. High Load Capacity: Designed to withstand heavy axial and radial loads, our bearings guarantee reliable operation even in the most demanding applications.
3. Low Maintenance: Say goodbye to frequent downtime and maintenance costs. Our Zero-Class Deep Groove Ball Bearings are built to last, reducing the need for replacements.
4. Versatile Applications: Whether you operate in automotive, manufacturing, or any other industry, these bearings are versatile enough to meet a wide range of app
Parameter:
| Product Name | Ball bearing Xihu (West Lake) Dis.r bearing Piliow bilock bearing Needle roller bearing Thrust ball bearing |
| Brand Name | KSA |
| Material | Gcr15 |
| Precision Grade | P0,P6,P5 |
| Certification | ISO 9001 |
| Packeage | Box /Carton/Wooden Box/Plastic Tube or Per buyers requirement |
| MOQ | Depending On Moedl |
| Serice | OEM |
| Sample | Available |
| Payment | TT or L/C or Western Union |
| Port | HangZhou |
Elaborate In Detail
1.Open type without seal
No seal can directly see the bare steel ball, suitable for sealing environment, such as gear box, oil more environment.
Performance: Good idling effect, ultra-high speed
2.Rubber seal
The sealing material is skeleton rubber combination, which can effectively prevent the bearing external (liquid) foreign matter and impurities from intruding into the bearing internal damage and damage the bearing
Advantages: dustproof, anti-liquid foreign matter, low noise, suitable for harsh environment
3.Metal seal
The sealing material is made of stainless steel metal, which can effectively prevent the bearing external (wind sand) foreign matter and debris from invading the bearing external with internal damage and damage to the bearing
Advantages: Low friction, fast heat dissipation
| Model | d mm | D mm | H mm | W kg | Model | d mm | D mm | H mm | W kg |
| 6000 | 10 | 26 | 8 | 0.019 | 6200 | 10 | 30 | 9 | 0.032 |
| 6001 | 12 | 38 | 8 | 0.571 | 6201 | 12 | 32 | 10 | 0.036 |
| 6002 | 15 | 32 | 9 | 0.03 | 6202 | 15 | 35 | 11 | 0.044 |
| 6003 | 17 | 35 | 10 | 0.04 | 6203 | 17 | 40 | 12 | 0.065 |
| 6004 | 20 | 42 | 12 | 0.069 | 6204 | 20 | 47 | 14 | 0.11 |
| 6005 | 25 | 47 | 12 | 0.08 | 6205 | 25 | 52 | 15 | 0.13 |
| 6006 | 30 | 55 | 13 | 0.116 | 6206 | 30 | 62 | 16 | 0.21 |
| 6007 | 35 | 62 | 14 | 0.155 | 6207 | 35 | 72 | 17 | 0.288 |
| 6008 | 40 | 68 | 15 | 0.185 | 6208 | 40 | 80 | 18 | 0.368 |
| 6009 | 45 | 75 | 16 | 0.231 | 6209 | 45 | 85 | 19 | 0.416 |
| 6571 | 50 | 80 | 16 | 0.25 | 6210 | 50 | 90 | 20 | 0.463 |
| 6011 | 55 | 90 | 18 | 0.362 | 6211 | 55 | 100 | 21 | 0.603 |
| 6012 | 60 | 95 | 18 | 0.385 | 6212 | 60 | 110 | 22 | 0.789 |
| 6013 | 65 | 100 | 18 | 0.408 | 6213 | 65 | 120 | 23 | 0.99 |
| 6014 | 70 | 110 | 20 | 0.62 | 6214 | 70 | 125 | 24 | 1.084 |
| 6015 | 75 | 115 | 20 | 0.63 | 6215 | 75 | 130 | 25 | 1.171 |
| 6016 | 80 | 125 | 22 | 0.86 | 6216 | 80 | 140 | 26 | 1.448 |
| 6017 | 85 | 130 | 22 | 0.94 | 6217 | 85 | 150 | 28 | 1.803 |
| 6018 | 90 | 140 | 24 | 1.38 | 6218 | 90 | 160 | 30 | 2.71 |
| 6019 | 95 | 145 | 24 | 1.5 | 6219 | 95 | 170 | 32 | 2.62 |
| 6571 | 100 | 150 | 24 | 1.63 | 6220 | 100 | 180 | 34 | 3.19 |
Product Analysis
Product Description
Noise Accuracy
Bearing Noise Precision Tolerance
Bearing noise Z1.Z2.Z3.Z4 The Z1 decibel Accuracy is divided into P0<P6<P5<P4
value is 33-38 decibels The Z2 decibel P0(ABCE-1) =+0-0.007MM
value is 28-32 decibels The Z3 decibel P6 (ABCE-3) =+0-0.006MM
value is 22-25 decibels The Z4 decibel P5 (ABCE-5) =+0-0.0005MM
value is 15-21 decibels Vibration and noise response life of bearings P4 (ABEC-7) =+0-0.004mm
Level P0 products are used in most scenarios
P5/P6 application precision level
Product Display
Company Profile
ZheJiang Kangshi Precision Bearing Manufacturing Co., Ltd., located in Yandian Town Industrial Park, HangZhou City, ZheJiang Province, mainly produces zero deep groove ball bearings, 2 types of cylindrical roller bearings, 3 types of aligning roller bearings, 6 types of angular contact ball bearings, 7 types of tapered roller bearings, 8 types of thrust ball bearings, thrust bearings, 9 types of thrust aligning roller bearings, outer spherical bearings, auto parts, Motorcycle parts and other rolling bearings.
Our factory has strong professional technology, good production equipment and perfect testing means, can fully meet the various types, specifications, high precision and special use requirements of bearing products customized processing, the production process of the product according to the strict national standards of enterprise internal control standards for the implementation of full inspection and multi-project comprehensive inspection of factory products, Can ensure the quality of each set of factory bearing products to meet national standards.
Kangshi bearing has always implemented national standards, market prices, and implemented the “three guarantees” principle for customers: To ensure high-quality quality, preferential prices, superior after-sales service! Welcome customers at home and abroad to consult and negotiate business, the company will continue to win the trust of more customers with good product quality and reputation
Our Advantage:
1. Our products: with high quality, long life, high speed, low noise, low friction quality products
2. We have: sufficient storage space, sufficient inventory, high production efficiency, we provide customers with the most favorable prices
3. Chinese bearing: in China’s production line, products are exported to all over the world, product specifications are complete, certificates are complete, professional R & D team
4. After-sales service and technical guidance: The company provides after-sales service and technical guidance according to customer requirements and needs
Scope of application
The products are suitable for: transmission, instrumentation, motor, household appliances, internal combustion engine, traffic vehicles, agricultural machinery, construction machinery, construction machinery roller skates, yo-yo ball, etc
FAQ
Q: What is the MOQ?
A: It depends on the bearing type. You can send inquiry or send e-mail for more information.
Q: How about the package?
A: Industrial packing in general condition (Plastic drums/boxes/industrial packaging + cartons + pallets). Accept design package when OEM.
Q: How long is the delivery time?
A: It will take about 10 to 40 days, depends on the model and quantity.
Q:What are the advantages of your company’s services compared to other companies?
A: Factory direct supply, price advantage, 24 hours online timely reply, Provide customers with customs clearance
and quality of various documents, 100% after-sales service
Q:OEM POLICY
A:We can printing your brand (logo,artwork)on the bearings or laser engraving your brand on the bearings.
We can custom your packaging according to your design All copyright own by clients and we promised don’t
disclose any info.
Q:How to contact us quickly?
A: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(/(.*?):(.*)$/))&&1
| Quality: | High Quality |
|---|---|
| Inventory: | Abundant |
| Major Market: | Global |
| Samples: |
US$ 2/Set
1 Set(Min.Order) | Order Sample |
|---|
| 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. |
|---|

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.

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 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 2024-03-27
China Custom CZPT CZPT Suppliers Good Performance Deep Groove Ball Bearing 6002 2RS/Zz 15*32*9 for Engineering Machinery wheel bearing
Product Description
Deep groove ball bearing is 1 of the most widely used rolling bearings. It is characterized by small friction resistance and high speed. It can be used to bear radial load or combined load of radial and axial at the same time. It can also be used to bear axial
load.
Deep groove ball bearing type has single row and double row 2 kinds. divided into sealed and open 2 kinds of structure, open refers to the bearing does not have a sealed structure, sealed deep groove ball bearing is divided into dust-proof seal (2Z)and oil-proof seal (2RS).
Deep groove ball bearing can be used for gearbox, instrument, motor, household appliances,internal combustion engine, traffic vehicles, agricultural machinery, construction machinery, engineering machinery.
| NO. | Bearing type | Dimension(mm) | Weight | |||
| d | D | B(Open) | B(ZZ/2RS) | (KG) | ||
| 1 | R10 | 15.875 | 34.925 | 7.143 | 8.73 | 0.037 |
| 2 | R12 | 19.05 | 41.275 | 7.938 | 11.112 | 0.047 |
| 3 | R14 | 22.225 | 47.625 | 9.525 | 12.7 | 0.071 |
| 4 | R16 | 25.4 | 50.8 | 9.525 | 12.7 | 0.085 |
| 5 | R18 | 28.575 | 53.975 | 9.525 | 12.7 | 0.09 |
| 6 | R20 | 31.75 | 57.15 | 9.525 | 12.7 | 0.094 |
| 7 | R155 | 3.969 | 7.938 | 2.779 | 3.175 | |
| 8 | R156 | 4.763 | 7.938 | 2.779 | 3.175 | |
| 9 | R166 | 4.763 | 9.525 | 3.175 | 3.175 | |
| 10 | R168 | 6.35 | 9.525 | 3.175 | 3.175 | |
| 11 | R188 | 6.35 | 12.7 | 3.175 | 4.763 | |
| 12 | R1601 | 4.763 | 17.462 | 6.35 | 7.938 | |
| 13 | R1603 | 7.938 | 22.225 | 7.142 | 8.731 | |
| 14 | R1038 | 9.525 | 15.875 | 3.967 | 3.967 | |
| 15 | R1212 | 12.7 | 19.05 | 3.967 | 3.967 | |
| 16 | 692 | 2 | 6 | 2.3 | 3 | 0.00031 |
| 17 | 693 | 3 | 8 | 3 | 4 | 0.00061 |
| 18 | 694 | 4 | 11 | 4 | 4 | 0.0018 |
| 19 | 695 | 5 | 13 | 4 | 4 | 0.0571 |
| 20 | 696 | 6 | 15 | 5 | 5 | 0.0038 |
HIGH
HARDNESS
Long use time is not easy to wear,
meticulous workmanship
STABLE
PERFORMANCE
Stable operation, not easy to hot
suitable for a variety of scenarios
HIGH QUALITY
REARING STEEI
The product is made
of bearing steel with uniform
hardness and wear resistance
Bearing products are widely used in railway, aerospace, light and heavy industry, food machinery and many other fields.
ZheJiang Deruna Bearing Co.,Ltd.is a pro-fessional bearing factory and trading companyin HangZhou, ZheJiang .Now we have a group of outstanding technicalpersonnel with rich experience and many yearsof work,and advanced automatic productionine of bearings.Our factory mainly produce pillow block bearing with housing,deepgroove ball bearing, tapered roller bearing and sales of other types of bearings. With our serious effort in the bearing field for nearly 20 years, we have the extensive experience of working with many internationally renowned companies.
In order to supply even more stable quality to our vast customers, we established a factory in Liao Cheng city,ZheJiang province.
Beside standard specifications, we also provide the customized service.Welcome all of customers visit our factory . We look forward to establishing a good long-termbusiness relationship with you.
1.I couldn’t find a design to fit my application in your catalog. Can you help me design a bearing?
Yes, technical expertise is available to assist you with engineering design for custom products. Available options include, but are not limited to, custom rings, retainers, balls, shields, lubricants, and packaging. We look forward to working with you to satisfy your rotary motion requirements.
2.How Can We Guarantee Quality?
We have professional inspection equipment and quality inspection personnel. Firstly, we will strictly control the production of products in the production process, and strictly screen the finished products after they are finished.
3.How Long is Your Delivery Time?
Generally takes about 7-15 working days for production based on specifications for your order and quantity. Inventory bearings can arrange shipment immediately after payment received.
4.Where is your port of shipment located?
Our main port of shipment is HangZhou & Qindao port, and we may operate at other ports if required by the customer.
5.What is Your Terms of Payment ?
Payment1,000usd, 30% T/t in Advance, Balance Before Shipment.
/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| Cage: | Steel Cage.Copper Cage |
|---|---|
| Seals Type: | Open |
| Feature: | Long Life |
| Bearings Type: | Ball Bearing |
| Vibration: | Z1V1 Z2V2 Z3V3 |
| Aligning: | Non-Aligning Bearing |
| Samples: |
US$ 0.5/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 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 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 2024-02-24
China supplier Machinery Engine Parts 1688451 Sf4826 Sf4831 Drive Final Ball Bearing for Engiane 3066 wholesaler
Product Description
|
Product |
DRIVE FINAL BALL BEARING |
|
Part |
SF4826 PX1 |
|
Brand |
TE BRAND |
1. Why choose us?
(1) Our parts are OEM quality.
(2) High quality,the best price from factory.
(3) Our company is an integrated supplier of construction machinery parts.
(4) Delivery on time.
(5) Accept small orders.
(6) Find professional factory customized products for customers.
(7) A service team with nearly 28 years of professional experience.
(8) Our company is the wholesaler which is have enough stock.
2. What kind of parts do you supply?
We supply engine parts, hydraulic parts, electrical parts, and so on.
3. What services can we provide?
Accepted delivery terms: EXW
Accepted payment currencies: USD, RMB;
Accepted Payment Type: T/T
language: English
4. How long is the delivery time?
Usually, it takes 2-6 working days for in-stock items, customized products need to be arranged as needed
5. What kind of packaging do you provide?
Neutral packaging or TE brand packaging
/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1
| After-sales Service: | Online Service |
|---|---|
| Warranty: | No |
| Type: | Engine Parts/Electronic Component |
| Application: | Manufacturing Plant, Construction Works |
| Condition: | New |
| Quality: | Made in China |
| 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.

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 2024-02-16