Standards for axial play of motor rolling bearings
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There are four YuanDa reciprocating compressors, in two rows of three each. The drive is achieved by motors; the axial displacement of the four motors varies, being 0.40 mm, 0.1 mm, and 0.05 mm respectively. For motors supported by rolling bearings, is 0.40 mm the correct value? Experts, please explain and let me know! Thank you
Just install it with the clearance specified in the coupling installation instructions; one of the motor’s bearings is a deep-groove ball bearing, and the measurement should be taken at its natural position. The motor itself has a magnetic center line specified before it leaves the factory, and it is installed with reference to this line distance.
This depends on the inner diameter of the rolling bearing, as well as the precision grade chosen; the axial clearance can be obtained by consulting a table.