Q: What is the reason for the bearing clearance change?
A: generally, the clearance is smaller after thebearing is used, because the clearance reduction caused by the temperaturedifference between the inner ring and the outer ring is generally greater thanthe clearance increment generated by the load.
For the angular contact ballbearings, it will focus on the size of the pre-tightening, if thepre-tightening has made the bearing clearance negative, in use it will increasethe clearance slightly. There are many factors that affect the change ofclearance of bearing. The above opinions are only for reference
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