Product overview and application:
RB series cross roller bearings are mainly used for machine tool spindle differential pinion shaft, booster pump, drilling platform, food machinery, dividing head, welding machine, low noise type cooling tower, electromechanical equipment, coating equipment, machine tool groove plate, arc welding machine and other half shaft, inspection and analysis equipment, fine chemical machinery equipment.
Bearing structure and size:

Product pictures:


High precision bearing maintenance method:
1.with the cleaning of diesel oil or kerosene immersion cleaning bearings, if there are technical conditions, it is best to open the sealing ring cleaning;
2. Air dry the cleaning oil after cleaning, and check the appearance for damage;
3. Fix a bearing at one end with a wooden rod or copper rod (preferably hollow tube) that is equal to the inner diameter of the bearing;
4. While rapidly rotating the bearing by hand, put the other end of the wooden rod (wooden tube) on the ear or the microphone of the audio amplifier to identify the noise of bearing rotation;
5. Move the wooden rod horizontally after fixing the bearing to check whether the bearing is worn and loose;
6.loose serious, rotating noise is too large, there are serious defects of the bearing should be eliminated, replaced by the same model;

We produce more bearing products:









More models we can produce:




KA020AR0 2.000 2.500 2.186 2.314 2.369 790 405 2,280 960 .10
KA025AR0 2.500 3.000 2.686 2.814 2.869 960 459 2,780 1,100 .12
KA030AR0 3.000 3.500 3.186 3.314 3.367 1,140 507 3,290 1,230 .14
KA035AR0 3.500 4.000 3.686 3.814 3.867 1,310 552 3,790 1,350 .17
KA040AR0 4.000 4.500 4.186 4.314 4.367 1,490 595 4,300 1,470 .19
KA042AR0 4.250 4.750 4.436 4.564 4.615 1,580 616 4,550 1,530 .20
KA045AR0 4.500 5.000 4.686 4.814 4.865 1,660 637 4,810 1,580 .21
KA047AR0 4.750 5.250 4.936 5.064 5.115 1,750 657 5,060 1,640 .22
KA050AR0 5.000 5.500 5.186 5.314 5.365 1,840 676 5,310 1,690 .23
KA055AR0 5.500 6.000 5.686 5.814 5.863 2,020 715 5,820 1,800 .25
KA060AR0 6.000 6.500 6.186 6.314 6.363 2,190 752 6,320 1,900 .28
KA065AR0 6.500 7.000 6.686 6.814 6.861 2,370 788 6,830 2,000 .30
KA070AR0 7.000 7.500 7.186 7.314 7.361 2,540 823 7,340 2,100 .32

KB040AR0 4.000 4.625 4.231 4.393 4.460 2,040 865 5,890 2,100 .30
KB042AR0 4.250 4.875 4.481 4.643 4.710 2,150 891 6,200 2,170 .31
*KB045AR0 4.500 5.125 4.731 4.893 4.960 2,250 917 6,500 2,240 .34
*KB047AR0 4.750 5.375 4.981 5.143 5 .210 2,390 951 6,910 2,340 .35
*KB050AR0 5.000 5.625 5.231 5.393 5.460 2,500 976 7,210 2,410 .37
KB055AR0 5.500 6.125 5.731 5.893 5.958 2,740 1,033 7,920 2,560 .40
KB060AR0 6.000 6.625 6.231 6.393 6.458 2,990 1,088 8,630 2,710 .44
*KB065AR0 6.500 7.125 6.731 6.893 6.958 3,200 1,132 9,240 2,840 .47