How to interpret bearings for motors？

August 24, 2018

How to interpret bearings for motors
There are three types of commonly used bearings for motors: rolling bearings, sliding bearings and oil bearing, which support the rotation of motor parts. Oil bearing is generally used in micro or small motors, with few accessories and no maintenance, which is beneficial to simplify the structure. The sliding bearing is mainly used in medium and large motors, which is suitable for heavy load and impact resistance. Rolling bearings are most widely used.
How to identify the bearing
The rolling bearing code is composed of preposition code, basic code and suffix code. The preposition code is represented by letters, which means complete bearing parts. The basic code indicates the main features of bearing type and size. The suffix code indicates the accuracy of the bearing and the characteristics of the material.
Bearing rear designation and its meaning
A common example of an internal structure code meaning
B - the contact Angle of 40 ° Angular Contact Ball Bearing
C - the contact Angle is 15 ° angular contact ball bearings
AC - contact Angle of 25 ° angular contact ball bearing
E -- reinforced design

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