motor ball bearing R3

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Part Number R3
Bearing type BALL
Structure Single Row
Load Direction Radial
Seal type open
Bore diameter(d) 3/16″︱4.762mm
Outer diameter(D) 1/2″︱12.7mm
Width(B) ︱3.967mm
material Chrome steel 52100(Gcr15)
ring material Chrome steel 52100(Gcr15)
cage material 300 Series Stainless Steel
ball material Chrome steel 52100(Gcr15)
shields material 300 Series Stainless Steel
Grade ABEC-1(higher grade available)
Clearance C0(other clearance available)
BALL SIZE(mm)  2.381mm
lubrication grease(oil available)
Temperature Range -30℃~130℃
weight(g) 3
ISO9001:2015 PASSED
Dynamic Load Rating (Cr)  1107 N
Static Load Rating (Cor) 391   N
motor ball bearing r3zz d

The item R3  is one of pop motor ball bearing  for motor, it is with a bore diameter 4.762mm,a outer diameter 12.7mm,and a width 3.967mm,it is belong to open type,we can can supply motor ball bearing R3  with shields and with rubber seals,  we have different color of rubber seal for choices.

motor ball bearing are referred bearings used for Motor.

Runstar is a professional motor ball bearing manufacturer, we have been committed to the design and production of motor ball bearing  with high precision and high speed, who has more then 15 year’s experience in designing and manufacturing motor ball bearing for industries.

We have full size of motor ball bearing  for choice, all motor ball bearing from Runstar has the followings characteristics.
1:full size of motor ball bearing available. Runstar design and manufacture full sizes of motor ball bearing with a bore size from 1mm to 20mm for rc models,it consists of metric miniature ball bearing, inch miniature ball bearing and miniature flange bearings.
2:High Precision to meet all needs in quality. Runstar’s motor ball bearing have different grade from ABEC-1 to ABEC-7 for choice.
3:High speed . It is one of the most basic requirements of motor ball bearing. motor ball bearing with high speed can give full play to the performance of Brushless Motor.
4:Long life. The long-time rotation with high speed is a great test for the service life of the motor ball bearing. Runstar’s motor ball bearing are strictly controlled and managed from the selection of materials and each process to ensure that each rc ball bearing can be durable.
5:customized motor ball bearing  is accepted.


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