{"id":628,"date":"2024-05-15T22:10:47","date_gmt":"2024-05-15T22:10:47","guid":{"rendered":"https:\/\/www.selfaligningballbearing.com\/?p=628"},"modified":"2024-05-15T22:10:47","modified_gmt":"2024-05-15T22:10:47","slug":"china-supplier-china-deep-groove-ball-bearings-61919-61920-61921-61922-61924-61926-61928-61930-61932-61934-61936-61938-61940-61944-rz-bearing-air","status":"publish","type":"post","link":"https:\/\/www.selfaligningballbearing.com\/?p=628","title":{"rendered":"China supplier China Deep Groove Ball Bearings 61919 61920 61921 61922 61924 61926 61928 61930 61932 61934 61936 61938 61940 61944 Rz   bearing air"},"content":{"rendered":"<div class=\"et_pb_column et_pb_column_3_4 et_pb_column_0_tb_body  et_pb_css_mix_blend_mode_passthrough\">\n<div class=\"et_pb_module et_pb_post_content et_pb_post_content_0_tb_body\">\n<p><h2>Product Description<\/h2>\n<p>\n<p>     <u><b><\/b><\/u> <br \/><b><u>PRODUCT PICTURES<\/u><\/b> <\/p>\n<p><u><b>OUR SERVICES<\/b><\/u> <\/p>\n<p>We can provide manufacturing capabilities and\u00a0services of regular bearings for you, or\u00a0customized non-standard bearings as you\u00a0required.<\/p>\n<p>\u00a0<b>BEARING:<\/b><br \/> \u00a0 &#8212; Dimensions<br \/> \u00a0 &#8212;\u00a0Material<br \/> \u00a0 &#8212;\u00a0Tolerance standard<\/p>\n<p><b>APPEARANCE:<\/b><br \/> \u00a0 &#8212; Logo (Laser Marking)<br \/> \u00a0 &#8212;\u00a0Package Design<\/p>\n<p><b><u>40+ YEARS EXPERIENCE\u00a0<\/u><br \/>CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.<\/b><br \/>With over 40 years experience of the bearing manufacturing, we know how to make good bearings with less cost consistently and efficiently.<\/p>\n<p>We use advanced CNC turning, grinding, and superfinishing machines to ensure high, stable, and accurate machining.\u00a0 All of your goods, from the most economical category, to the highest rated category,\u00a0will always be manufactured precisely to the standards you require.<\/p>\n<p><b><u>OWN HEAT TREATMENT\u00a0<\/u><\/b> <br \/><b>CONTROALLABLE COST AND QUALITY.<\/b> <\/p>\n<p>Heat treatment is 1 of the crucial processes to ensure high performance of bearing materials.\u00a0Compared with other manufacturers, we can produce higher quality bearings at <b>smaller cost<\/b>, with a more<b> flexible and controllable production schedule<\/b>, and in a <b>shorter time<\/b>.\u00a0 <\/p>\n<p>\n<p>\n<p>\n<p><p>We have 6 heat treatment production lines.<\/p>\n<p> Bearings are heated uniformly, with small deformation and little\/no oxidized decarburization, which can make them have high hardness, high fatigue resistance, good wear resistance, dimensional stability, and excellent mechanical strength. <br \/> \u00a0 <\/p>\n<p><u>OUTSTXIHU (WEST LAKE) DIS.\u00a0 QUALITY<\/u> <br \/>LOW NOISE, LOW FRICTION AND LONG LIFE. <\/p>\n<p>All our products are characterized by <b>low noise, low friction and long life<\/b>.\u00a0 This is due to our attention to the roundness, waviness and surface roughness of bearing raceway.<\/p>\n<p>Our products fully meets the requirements of national and international standards accorind to the testing result of<br \/> roughness, roundness, hardness, vibration noise, vibration velocity.  <\/p>\n<p><u>PACKING<\/u><br \/>PACKAGING THAT HELPS SELL.<\/p>\n<p><b>1,\u00a0Inner package<\/b><br \/> \u00a0 \u00a0Corrosion and Dust Proof PE plastic film\u00a0 \/ bag packing + Tube packing, or Wrapping\u00a0 tape for larger bearings.<\/p>\n<p><b>2, Corrugated<\/b>\u00a0<b>Individual Box<\/b><br \/> \u00a0 \u00a0Our attractive sales-helpful &#8220;3-JOYS&#8221; package, or as the design\u00a0of your package.<br \/><b>3,\u00a0<\/b><b>Outer package<\/b><br \/> \u00a0 Corrugated carton\u00a0+\u00a0Wooden pallet\u00a0<\/p>\n<p><b><u>MODERN WELL-ORGANIZED WAREHOUSE<\/u><\/b><\/p>\n<p>\u00a0\u00a0<b>\u00b7<\/b>\u00a0Constant temperature\u00a0<i>(<\/i><i>20\u00b0C)<\/i>\u00a0and humidity\u00a0<i>(RH 52%)<\/i>\u00a0warehouse<br \/> \u00a0<b>\u00a0\u00b7<\/b>\u00a0Hundreds of models on hand, short delivery time.<br \/> \u00a0<\/p>\n<p><u>HONOR &amp; SYSTEM CERTIFICATES<\/u><\/p>\n<p><u>EXHIBITION<\/u><\/p>\n<p><u><b>SAMPLES POLICY\u00a0<\/b><\/u><\/p>\n<p>\n<p><b>\u00a0FREE SAMPLES AND SHIPPING<\/b><\/p>\n<p> \u00a0We are happy to send you free samples of our bearings for field\u00a0 \u00a0testing.\u00a0All transportation costs will be paid by us.<\/p>\n<p> \u00a0<b>Please note<\/b>: Depending on the model and value of samples,\u00a0 \u00a0this\u00a0policy may not apply!<\/p>\n<p> \u00a0Please contact our sales staff for details. <\/p>\n<p> <u><\/u> <\/p>\n<p>\n<p><u>TRANSPORTATION<\/u> <br \/>FASTEST DELIVERY TO CUSTOMERS <br \/><u>CUSTOMERS FEEDBACK<\/u> <\/p>\n<p>PAYMENT TERMS\u00a0 <br \/><u>To facilitate your payment, we offer a variety of options!\u00a0<\/u> <\/p>\n<p>\u00a0 \u00a0\u00a0 <br \/> \u00a0 <\/p>\n<p><u>FAQ<\/u><\/p>\n<p><b>1, About the lead time.<\/b><br \/> \u00a0<br \/> This depends on several factors, like\u00a0Is the production schedule tight? Is there a corresponding model in stock, and is there enough of this model in stock?\u00a0How many\u00a0pcs of that model\u00a0would be ordered?<br \/> Simply speaking, based on a 20&#8242; GP container load:<\/p>\n<table border=\"1\" cellpadding=\"1\" cellspacing=\"1\">\n<tbody>\n<tr>\n<td>If the model your Preferred is<\/td>\n<td>Sufficient stock<\/td>\n<td>Lead Time<\/td>\n<\/tr>\n<tr>\n<td><b>Regular models<\/b><\/td>\n<td><b>YES<\/b><\/td>\n<td><b>Within 7 days<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Regular models<\/b><\/td>\n<td><b>NO<\/b><\/td>\n<td><b>Within 30 days<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Non-regular model<\/b><\/td>\n<td><b>NO<\/b><\/td>\n<td><b>About 50 days<\/b><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><p>For accurate estimate, please contact with our sale stuff. Thanks.<\/p>\n<p><b>2, Minimum order quantity.\u00a0<br \/> \u00a0\u00a0<\/b><br \/><b>Even just ONE\u00a0<\/b>piece of bearing is\u00a0ok for us.<\/p>\n<p> \u00a0\u00a0<br \/><b>3, If you don&#8217;t know which model is the right choice&#8230;<br \/> \u00a0\u00a0<\/b><br \/>We would like to give you some advise if you like, according to the real situation and demand of your local market. Our purpose is to help you\u00a0to get proper and right models for your customers, so that you would make a better sales and income finally.<\/p>\n<p><b>4, Factory Inspection<\/b><\/p>\n<p>We surely would welcome you or your representatives to come to our plants or working offices to take a good look and chat with our hardworking CZPT employees. Ask our sales stuff and she\/he will arrange that for you. <\/p>\n<p><b><u>OPTIONS OF SPECIFICATION AND STHangZhouRD<\/u><\/b> <br \/> \u00a0 <\/p>\n<table>\n<colgroup>\n<col> <\/colgroup>\n<tbody>\n<tr>\n<td><b>Subject<\/b><\/td>\n<td><b>Symbol<\/b><\/td>\n<td><b>Description<\/b><\/td>\n<\/tr>\n<tr>\n<td rowspan=\"7\">Sealing &amp; Sealing type<\/td>\n<td>Z<\/td>\n<td>Metal shield on 1 side.<\/td>\n<\/tr>\n<tr>\n<td>ZZ<\/td>\n<td>Metal shields on both sides.<\/td>\n<\/tr>\n<tr>\n<td>RS<\/td>\n<td>Rubber seal on 1 side.<\/td>\n<\/tr>\n<tr>\n<td>2RS<\/td>\n<td>Rubber seals on both sides.<\/td>\n<\/tr>\n<tr>\n<td>ZNR<\/td>\n<td>Shield on 1 side, snap ring groove in the outer ring, with snap ring on the opposite side of the shield<\/td>\n<\/tr>\n<tr>\n<td>2ZNR<\/td>\n<td>Shield on both sides, snap ring groove in the outer ring, with snap ring<\/td>\n<\/tr>\n<tr>\n<td>ZNBR<\/td>\n<td>Shield on 1 side, snap ring groove in the outer ring, with snap ring on the same side as the shield<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">Vibration Velocity<\/td>\n<td>V<\/td>\n<td>Normal vibration level. Is not indicated as a standard.<\/td>\n<\/tr>\n<tr>\n<td>V1<\/td>\n<td>Lower vibration level than normal.<\/td>\n<\/tr>\n<tr>\n<td>V2<\/td>\n<td>Lower vibration level than V1.<\/td>\n<\/tr>\n<tr>\n<td>V3<\/td>\n<td>Lower vibration level than V2.<\/td>\n<\/tr>\n<tr>\n<td>V4<\/td>\n<td>Lower vibration level than V3.<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">Tolerances<\/td>\n<td>P0(ABEC1)<\/td>\n<td>Bearings in standard tolerance<\/td>\n<\/tr>\n<tr>\n<td>P6(ABEC3)<\/td>\n<td>Tighter tolerance than standard bearings<\/td>\n<\/tr>\n<tr>\n<td>P5(ABEC5)<\/td>\n<td>Tolerance tighter than P6<\/td>\n<\/tr>\n<tr>\n<td>P4(ABEC7)<\/td>\n<td>Tolerance tighter than P5<\/td>\n<\/tr>\n<tr>\n<td>P2(ABEC9)<\/td>\n<td>Tolerance tighter than P4<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"6\">Radial internal clearance<\/td>\n<td>C1<\/td>\n<td>Smaller clearance than C2<\/td>\n<\/tr>\n<tr>\n<td>C2<\/td>\n<td>Smaller clearance than CN<\/td>\n<\/tr>\n<tr>\n<td>CN(C0)<\/td>\n<td>Clearance than normal<\/td>\n<\/tr>\n<tr>\n<td>C3<\/td>\n<td>Clearance larger than CN<\/td>\n<\/tr>\n<tr>\n<td>C4<\/td>\n<td>Clearance larger than C3<\/td>\n<\/tr>\n<tr>\n<td>C5<\/td>\n<td>Clearance larger than C4<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"4\">Snap Ring Groove<\/td>\n<td>N<\/td>\n<td>Snap ring groove in the outer ring<\/td>\n<\/tr>\n<tr>\n<td>NR<\/td>\n<td>Snap ring groove in the outer ring, with snap ring<\/td>\n<\/tr>\n<tr>\n<td>N1<\/td>\n<td>One locating slot in 1 outer ring side face<\/td>\n<\/tr>\n<tr>\n<td>R<\/td>\n<td>Flanged outer ring<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"3\">Other technical modifications<\/td>\n<td>NR<\/td>\n<td>Groove with inserted snap ring in outer ring.<\/td>\n<\/tr>\n<tr>\n<td>N<\/td>\n<td>Snap ring groove in the outer ring.<\/td>\n<\/tr>\n<tr>\n<td>SS<\/td>\n<td>Stainless steel.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\n<table>\n<tbody>\n<tr>\n<td rowspan=\"8\">Cage Materials<\/td>\n<td>J<\/td>\n<td>Pressed steel cages<\/td>\n<\/tr>\n<tr>\n<td>M<\/td>\n<td>Solid brass cage<\/td>\n<\/tr>\n<tr>\n<td>F<\/td>\n<td>Solid cage made from steel or iron<\/td>\n<\/tr>\n<tr>\n<td>Y<\/td>\n<td>Pressed brass cages.<\/td>\n<\/tr>\n<tr>\n<td>T<\/td>\n<td>Laminated phenolic cages.<\/td>\n<\/tr>\n<tr>\n<td>TN<\/td>\n<td>Polyamide cages<\/td>\n<\/tr>\n<tr>\n<td>TH<\/td>\n<td>Glass-fiber reinforced phenolic resin cages.<\/td>\n<\/tr>\n<tr>\n<td>TV<\/td>\n<td>Polyamide cage<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"8\">Cage Designs<\/td>\n<td>P<\/td>\n<td>Window-type cage<\/td>\n<\/tr>\n<tr>\n<td>H<\/td>\n<td>Claw-type cage<\/td>\n<\/tr>\n<tr>\n<td>A<\/td>\n<td>Cage guided on the bearing outer ring<\/td>\n<\/tr>\n<tr>\n<td>B<\/td>\n<td>Cage-guided on the bearing inner ring<\/td>\n<\/tr>\n<tr>\n<td>S<\/td>\n<td>Cage with lubricating slots in the guiding surfaces<\/td>\n<\/tr>\n<tr>\n<td>D<\/td>\n<td>Carbonitriding cage<\/td>\n<\/tr>\n<tr>\n<td>W<\/td>\n<td>Welded cage<\/td>\n<\/tr>\n<tr>\n<td>R<\/td>\n<td>Riveted Cage<\/td>\n<\/tr>\n<tr>\n<td rowspan=\"5\">Cage Types<\/td>\n<td rowspan=\"5\">N\/A<\/td>\n<td>Claw-type cage<\/td>\n<\/tr>\n<tr>\n<td>Ribbon cage<\/td>\n<\/tr>\n<tr>\n<td>Crown cage<\/td>\n<\/tr>\n<tr>\n<td>Sunflower cage<\/td>\n<\/tr>\n<tr>\n<td>Tapered cage<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><u><b>PRODUCT PARAMETERS<\/b><\/u> <\/p>\n<p><b>This<\/b> tech sheet may not contain all or every piece of information you want to know. Please contact our sales staff to obtain or compare the information. <br \/> \u00a0 <\/p>\n<table>\n<colgroup>\n<col>\n<col>\n<col>\n<col>\n<col>\n<col> <\/colgroup>\n<tbody>\n<tr>\n<td><b>Designation<\/b><\/td>\n<td colspan=\"3\"><b>Boundary Dimension (mm)<\/b><\/td>\n<td colspan=\"2\"><b>Limiting Speed (rpm)<\/b><\/td>\n<td colspan=\"2\"><b>Load Rating (Kn)<\/b><\/td>\n<td><b>Weight<\/b><\/td>\n<\/tr>\n<tr>\n<td><b>Designation<\/b><\/td>\n<td><b>Inner Diameter<br \/>  (d)<\/b><\/td>\n<td><b>Outside Diameter<br \/>  (D)<\/b><\/td>\n<td><b>Width<br \/>  (B)<\/b><\/td>\n<td><b>Grease Lubrication<\/b><\/td>\n<td><b>Oil Lubrication<\/b><\/td>\n<td><b>Dynamic Load<\/b><br \/><b>(cr)<\/b><\/td>\n<td><b>Static Load<\/b><br \/><b>(cor)<\/b><\/td>\n<td><b>Weight<br \/>  (kg)<\/b><\/td>\n<\/tr>\n<tr>\n<td>61902<\/td>\n<td>15<\/td>\n<td>28<\/td>\n<td>7<\/td>\n<td>20000<\/td>\n<td>26000<\/td>\n<td>4.3<\/td>\n<td>2.3<\/td>\n<td>0.017<\/td>\n<\/tr>\n<tr>\n<td>61903<\/td>\n<td>17<\/td>\n<td>30<\/td>\n<td>7<\/td>\n<td>19000<\/td>\n<td>24000<\/td>\n<td>4.6<\/td>\n<td>2.6<\/td>\n<td>0.018<\/td>\n<\/tr>\n<tr>\n<td>61904<\/td>\n<td>20<\/td>\n<td>37<\/td>\n<td>9<\/td>\n<td>17000<\/td>\n<td>22000<\/td>\n<td>6.4<\/td>\n<td>3.7<\/td>\n<td>0.036<\/td>\n<\/tr>\n<tr>\n<td>61905<\/td>\n<td>25<\/td>\n<td>42<\/td>\n<td>9<\/td>\n<td>16000<\/td>\n<td>19000<\/td>\n<td>7<\/td>\n<td>4.55<\/td>\n<td>0.041<\/td>\n<\/tr>\n<tr>\n<td>61906<\/td>\n<td>30<\/td>\n<td>47<\/td>\n<td>9<\/td>\n<td>14000<\/td>\n<td>17000<\/td>\n<td>7.25<\/td>\n<td>5<\/td>\n<td>0.045<\/td>\n<\/tr>\n<tr>\n<td>61907<\/td>\n<td>35<\/td>\n<td>55<\/td>\n<td>10<\/td>\n<td>12000<\/td>\n<td>14000<\/td>\n<td>10.9<\/td>\n<td>7.75<\/td>\n<td>0.073<\/td>\n<\/tr>\n<tr>\n<td>61908<\/td>\n<td>40<\/td>\n<td>62<\/td>\n<td>12<\/td>\n<td>11000<\/td>\n<td>13000<\/td>\n<td>13.7<\/td>\n<td>9.95<\/td>\n<td>0.112<\/td>\n<\/tr>\n<tr>\n<td>61909<\/td>\n<td>45<\/td>\n<td>68<\/td>\n<td>12<\/td>\n<td>8500<\/td>\n<td>11000<\/td>\n<td>14.1<\/td>\n<td>10.9<\/td>\n<td>0.123<\/td>\n<\/tr>\n<tr>\n<td>61910<\/td>\n<td>50<\/td>\n<td>72<\/td>\n<td>12<\/td>\n<td>8000<\/td>\n<td>9500<\/td>\n<td>14.5<\/td>\n<td>11.7<\/td>\n<td>0.122<\/td>\n<\/tr>\n<tr>\n<td>61911<\/td>\n<td>55<\/td>\n<td>80<\/td>\n<td>13<\/td>\n<td>7500<\/td>\n<td>9000<\/td>\n<td>15.9<\/td>\n<td>13.2<\/td>\n<td>0.17<\/td>\n<\/tr>\n<tr>\n<td>61912<\/td>\n<td>60<\/td>\n<td>85<\/td>\n<td>13<\/td>\n<td>6700<\/td>\n<td>8000<\/td>\n<td>16.4<\/td>\n<td>14.2<\/td>\n<td>0.181<\/td>\n<\/tr>\n<tr>\n<td>61913<\/td>\n<td>65<\/td>\n<td>90<\/td>\n<td>13<\/td>\n<td>6300<\/td>\n<td>7500<\/td>\n<td>17.4<\/td>\n<td>16.0 <\/td>\n<td>0.196<\/td>\n<\/tr>\n<tr>\n<td>61914<\/td>\n<td>70<\/td>\n<td>100<\/td>\n<td>16<\/td>\n<td>6000<\/td>\n<td>7000<\/td>\n<td>23.7<\/td>\n<td>21.1<\/td>\n<td>0.336<\/td>\n<\/tr>\n<tr>\n<td>61915<\/td>\n<td>75<\/td>\n<td>105<\/td>\n<td>16<\/td>\n<td>5600<\/td>\n<td>6700<\/td>\n<td>24.3<\/td>\n<td>22.5<\/td>\n<td>0.355<\/td>\n<\/tr>\n<tr>\n<td>61916<\/td>\n<td>80<\/td>\n<td>110<\/td>\n<td>16<\/td>\n<td>5300<\/td>\n<td>6300<\/td>\n<td>24.9<\/td>\n<td>23.9<\/td>\n<td>0.375<\/td>\n<\/tr>\n<tr>\n<td>61917<\/td>\n<td>85<\/td>\n<td>120<\/td>\n<td>18<\/td>\n<td>4800<\/td>\n<td>6000<\/td>\n<td>31.9<\/td>\n<td>29.7<\/td>\n<td>0.507<\/td>\n<\/tr>\n<tr>\n<td>61918<\/td>\n<td>90<\/td>\n<td>125<\/td>\n<td>18<\/td>\n<td>4500<\/td>\n<td>5600<\/td>\n<td>32.8<\/td>\n<td>31.5<\/td>\n<td>0.533<\/td>\n<\/tr>\n<tr>\n<td>61919<\/td>\n<td>95<\/td>\n<td>130<\/td>\n<td>18<\/td>\n<td>4300<\/td>\n<td>5300<\/td>\n<td>33.7<\/td>\n<td>33.3<\/td>\n<td>0.56<\/td>\n<\/tr>\n<tr>\n<td>61920<\/td>\n<td>100<\/td>\n<td>140<\/td>\n<td>20<\/td>\n<td>4000<\/td>\n<td>5000<\/td>\n<td>42.7<\/td>\n<td>41.9<\/td>\n<td>0.77<\/td>\n<\/tr>\n<tr>\n<td>61921<\/td>\n<td>105<\/td>\n<td>145<\/td>\n<td>20<\/td>\n<td>1783<\/td>\n<td>2000<\/td>\n<td>67<\/td>\n<td>99<\/td>\n<td>0.87<\/td>\n<\/tr>\n<tr>\n<td>61922<\/td>\n<td>110<\/td>\n<td>150<\/td>\n<td>20<\/td>\n<td>3600<\/td>\n<td>4500<\/td>\n<td>43.6<\/td>\n<td>44.4<\/td>\n<td>0.84<\/td>\n<\/tr>\n<tr>\n<td>61924<\/td>\n<td>120<\/td>\n<td>165<\/td>\n<td>22<\/td>\n<td>3200<\/td>\n<td>4000<\/td>\n<td>55<\/td>\n<td>56.9<\/td>\n<td>1.13<\/td>\n<\/tr>\n<tr>\n<td>61926<\/td>\n<td>130<\/td>\n<td>180<\/td>\n<td>24<\/td>\n<td>3000<\/td>\n<td>3800<\/td>\n<td>65.1<\/td>\n<td>67.2<\/td>\n<td>1.496<\/td>\n<\/tr>\n<tr>\n<td>61928<\/td>\n<td>140<\/td>\n<td>190<\/td>\n<td>24<\/td>\n<td>2800<\/td>\n<td>3600<\/td>\n<td>66.6<\/td>\n<td>71.2<\/td>\n<td>1.589<\/td>\n<\/tr>\n<tr>\n<td>61930<\/td>\n<td>150<\/td>\n<td>210<\/td>\n<td>28<\/td>\n<td>2600<\/td>\n<td>3200<\/td>\n<td>84.7<\/td>\n<td>90.2<\/td>\n<td>2.454<\/td>\n<\/tr>\n<tr>\n<td>61932<\/td>\n<td>160<\/td>\n<td>220<\/td>\n<td>28<\/td>\n<td>2400<\/td>\n<td>3000<\/td>\n<td>86.9<\/td>\n<td>95.5<\/td>\n<td>2.589<\/td>\n<\/tr>\n<tr>\n<td>61934<\/td>\n<td>170<\/td>\n<td>230<\/td>\n<td>28<\/td>\n<td>2000<\/td>\n<td>2800<\/td>\n<td>88.8<\/td>\n<td>100<\/td>\n<td>2.725<\/td>\n<\/tr>\n<tr>\n<td>61936<\/td>\n<td>180<\/td>\n<td>250<\/td>\n<td>33<\/td>\n<td>1900<\/td>\n<td>2600<\/td>\n<td>118<\/td>\n<td>133<\/td>\n<td>4.062<\/td>\n<\/tr>\n<tr>\n<td>61938<\/td>\n<td>190<\/td>\n<td>260<\/td>\n<td>33<\/td>\n<td>1800<\/td>\n<td>2400<\/td>\n<td>117<\/td>\n<td>133<\/td>\n<td>4.216<\/td>\n<\/tr>\n<tr>\n<td>61940<\/td>\n<td>200<\/td>\n<td>280<\/td>\n<td>38<\/td>\n<td>1700<\/td>\n<td>2200<\/td>\n<td>149<\/td>\n<td>168<\/td>\n<td>5.879<\/td>\n<\/tr>\n<tr>\n<td>61944<\/td>\n<td>220<\/td>\n<td>300<\/td>\n<td>38<\/td>\n<td>1600<\/td>\n<td>2000<\/td>\n<td>152<\/td>\n<td>178<\/td>\n<td>6.34<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>\u00a0 \t\/* January 22, 2571 19:08:37 *\/!function(){function s(e,r){var a,o={};try{e&amp;&amp;e.split(&#8220;,&#8221;).forEach(function(e,t){e&amp;&amp;(a=e.match(\/(.*?):(.*)$\/))&amp;&amp;1\t <\/p>\n<p>\n<p>\n<p>  <button>View More <i><\/i><\/button> <\/p>\n<p><table class=\"widefat\" id=\"add_new_publishing_attribute\"><\/div>\n<table class=\"widefat\" id=\"add_new_publishing_attribute\">\n<tbody>\n<tr>\n<th width=\"160\" class=\"th-label\">Material Option 2:<\/th>\n<td>Stainless Steel<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">MOQ:<\/th>\n<td>One Pallet<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Seals Options:<\/th>\n<td>Z \/ 2z, Rz \/ 2rz, RS \/ 2RS, Rsz \/ Rzz, Zn \/ Znr \/<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Lubrication:<\/th>\n<td>Grease or Oil<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Aligning:<\/th>\n<td>Non-Aligning Bearing<\/td>\n<\/tr>\n<tr>\n<th width=\"160\" class=\"th-label\">Separated:<\/th>\n<td>Unseparated<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<div class=\"attr-line\"><\/div>\n<table class=\"widefat\" id=\"add_new_publishing_attribute\">\n<tbody>\n<tr>\n<th width=\"160\" class=\"th-label\">Samples:<\/th>\n<td>\n<div class=\"sample-order-info\">\n<div class=\"info-text\">\n                                            <strong class=\"red\">US$ 0\/Piece<\/strong><br \/>\n                                            <span title=\"1 Piece(Min.Order)\">1 Piece(Min.Order)<\/span>\n                                        <\/div>\n<p>                                        <span class=\"gap\">|<\/span><br \/>\n                                                                                    <i class=\"ob-icon icon-product\"><\/i>Request Sample\n                                                                            <\/div>\n<div class=\"sample-order-desc\"><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<table class=\"widefat\" id=\"add_new_publishing_attribute\">\n<tbody>\n<tr>\n<th width=\"160\" class=\"th-label\">Customization:<\/th>\n<td>\n<div class=\"sample-order-info\">\n<div class=\"info-text\">\n                                            Available\n                                        <\/div>\n<p>                                        <span class=\"gap\">|<\/span><\/p>\n<p>                                            <i class=\"ob-icon icon-fill\"><\/i>Customized Request<\/p><\/div>\n<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n<\/p><\/div>\n<\/table>\n<p><img decoding=\"async\" src=\"https:\/\/img.jiansujichilun.com\/img\/ball%20bearing\/ball-bearing1.webp\" alt=\"ball bearing\" width=\"800\" \/><\/p>\n<h3>How does Preload Affect the Performance and Efficiency of Ball Bearings?<\/h3>\n<p>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&#8217;s rolling elements before it is mounted. This force eliminates internal clearance and creates contact between the rolling elements and the raceways. Here&#8217;s how preload affects ball bearing performance:<\/p>\n<ul>\n<li>Reduction of Internal Clearance:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Increased Stiffness:<\/li>\n<\/ul>\n<p>Preloaded bearings are stiffer due to the elimination of internal clearance. This increased stiffness improves the bearing&#8217;s ability to handle axial and radial loads with higher accuracy and minimal deflection.<\/p>\n<ul>\n<li>Minimized Axial Play:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Enhanced Rigidity:<\/li>\n<\/ul>\n<p>The stiffness resulting from preload enhances the bearing&#8217;s rigidity, making it less susceptible to deformation under load. This is critical for maintaining precision and accuracy in applications that require minimal deflection.<\/p>\n<ul>\n<li>Reduction in Ball Slippage:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Improved Running Accuracy:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Optimized Performance at High Speeds:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Impact on Friction and Heat Generation:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Application-Specific Considerations:<\/li>\n<\/ul>\n<p>The appropriate amount of preload depends on the application&#8217;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.<\/p>\n<p>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.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.jiansujichilun.com\/img\/ball%20bearing\/ball-bearing8.webp\" alt=\"ball bearing\" width=\"800\" \/><\/p>\n<h3>How do Miniature Ball Bearings Differ from Standard-sized Ones, and Where are They Commonly Used?<\/h3>\n<p>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&#8217;s how miniature ball bearings differ from standard-sized ones and where they are commonly used:<\/p>\n<ul>\n<li>Size:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Load Capacity:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Precision:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Speed:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Friction and Efficiency:<\/li>\n<\/ul>\n<p>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.<\/p>\n<ul>\n<li>Applications:<\/li>\n<\/ul>\n<p>Miniature ball bearings find applications in various industries and sectors:<\/p>\n<ul>\n<li>Electronics and Consumer Devices:<\/li>\n<\/ul>\n<p>They are used in small motors, computer disk drives, printers, and miniature fans, where space is limited but precise motion is essential.<\/p>\n<ul>\n<li>Medical and Dental Equipment:<\/li>\n<\/ul>\n<p>Miniature bearings are used in medical devices such as surgical instruments, dental handpieces, and diagnostic equipment due to their precision and compactness.<\/p>\n<ul>\n<li>Robotics and Automation:<\/li>\n<\/ul>\n<p>Miniature ball bearings are integral to robotic arms, miniature conveyors, and automation systems, enabling precise movement in confined spaces.<\/p>\n<ul>\n<li>Aerospace and Defense:<\/li>\n<\/ul>\n<p>They are used in applications like UAVs (drones), aerospace actuators, and satellite components where size and weight constraints are critical.<\/p>\n<ul>\n<li>Optics and Instrumentation:<\/li>\n<\/ul>\n<p>Miniature bearings play a role in optical instruments, cameras, and measuring devices, providing smooth rotation and accurate positioning.<\/p>\n<p>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.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.jiansujichilun.com\/img\/ball%20bearing\/ball-bearing3.webp\" alt=\"ball bearing\" width=\"800\" \/><\/p>\n<h3>How do Ball Bearings Differ from Other Types of Bearings like Roller Bearings?<\/h3>\n<p>Ball bearings and roller bearings are two common types of rolling-element bearings, each with distinct designs and characteristics. Here&#8217;s a comparison of ball bearings and roller bearings:<\/p>\n<ul>\n<li>Design:<\/li>\n<\/ul>\n<p><b>Ball Bearings:<\/b> Ball bearings use spherical balls to separate and reduce friction between the bearing&#8217;s inner and outer rings. The balls enable rolling motion and smooth contact, minimizing friction.<\/p>\n<p><b>Roller Bearings:<\/b> 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.<\/p>\n<ul>\n<li>Friction and Efficiency:<\/li>\n<\/ul>\n<p><b>Ball Bearings:<\/b> Due to the point contact between the balls and the rings, ball bearings have lower friction and are more efficient at high speeds.<\/p>\n<p><b>Roller Bearings:<\/b> 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.<\/p>\n<ul>\n<li>Load Capacity:<\/li>\n<\/ul>\n<p><b>Ball Bearings:<\/b> 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.<\/p>\n<p><b>Roller Bearings:<\/b> 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.<\/p>\n<ul>\n<li>Variability:<\/li>\n<\/ul>\n<p><b>Ball Bearings:<\/b> Ball bearings come in various designs, including deep groove, angular contact, and thrust ball bearings, each suitable for different applications.<\/p>\n<p><b>Roller Bearings:<\/b> Roller bearings have diverse types, including cylindrical, spherical, tapered, and needle roller bearings, each optimized for specific load and motion requirements.<\/p>\n<ul>\n<li>Speed Capability:<\/li>\n<\/ul>\n<p><b>Ball Bearings:<\/b> The reduced friction in ball bearings makes them suitable for high-speed applications, such as electric motors and precision machinery.<\/p>\n<p><b>Roller Bearings:<\/b> Roller bearings can handle higher loads but are generally better suited for moderate to low speeds due to slightly higher friction.<\/p>\n<ul>\n<li>Applications:<\/li>\n<\/ul>\n<p><b>Ball Bearings:<\/b> 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.<\/p>\n<p><b>Roller Bearings:<\/b> Roller bearings find applications in heavy machinery, construction equipment, automotive transmissions, and conveyor systems, where heavier loads and durability are crucial.<\/p>\n<p>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.<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/img.hzpt.com\/img\/bushing_bearing\/bushing_bearing_l1.webp\" alt=\"China supplier China Deep Groove Ball Bearings 61919 61920 61921 61922 61924 61926 61928 61930 61932 61934 61936 61938 61940 61944 Rz   bearing air\"><img decoding=\"async\" src=\"https:\/\/img.hzpt.com\/img\/bushing_bearing\/bushing_bearing_l2.webp\" alt=\"China supplier China Deep Groove Ball Bearings 61919 61920 61921 61922 61924 61926 61928 61930 61932 61934 61936 61938 61940 61944 Rz   bearing air\"><br \/>editor by CX 2024-05-16<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Product Description PRODUCT PICTURES OUR SERVICES We can provide manufacturing capabilities and\u00a0services of regular bearings for you, or\u00a0customized non-standard bearings as you\u00a0required. \u00a0BEARING: \u00a0 &#8212; Dimensions \u00a0 &#8212;\u00a0Material \u00a0 &#8212;\u00a0Tolerance standard APPEARANCE: \u00a0 &#8212; Logo (Laser Marking) \u00a0 &#8212;\u00a0Package Design 40+ YEARS EXPERIENCE\u00a0CONTINUOUS AND STABLE DELIVERY OF PRODUCTS.With over 40 years experience of the bearing [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[1330,377,24,26,55,27,57,32,34,120,61,38,39,41,43,44],"class_list":["post-628","post","type-post","status-publish","format-standard","hentry","category-selfaligningballbearing","tag-61922-bearing","tag-air-bearing","tag-ball-bearing","tag-ball-bearing-groove","tag-ball-bearings-bearing","tag-bearing","tag-bearing-bearings","tag-bearing-china","tag-bearing-groove","tag-bearing-supplier","tag-bearings-bearing-bearing","tag-china-bearing-bearing","tag-deep-groove-ball-bearing","tag-deep-groove-bearing","tag-groove-ball-bearing","tag-groove-bearing"],"_links":{"self":[{"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=\/wp\/v2\/posts\/628","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=628"}],"version-history":[{"count":0,"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=\/wp\/v2\/posts\/628\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=628"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=628"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.selfaligningballbearing.com\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=628"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}