Bearing internal clearance is described as the total distance either inner or outer ring can be moved when the other ring is fixed.
If movement is in the radial direction, it is called radial internal clearance
If movement is in the axial direction, it is called axial internal clearance
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Initially bearing clearance is kept greater than its operating clearance in all applications due to the following reasons:
Bearings are normally mounted on shaft or in the housing with an interference fit. The expansion of the inner ring or the compression of the outer ring reduces the internal clearance as bearing generates heat in operation.
Bearings generate heat during operation. Differential thermal expansion of the bearing and mating components influences the internal clearance so sufficient internal clearance in a bearing during operation is important.
This video covers following:
Bearing internal clearance
Rolling bearings
Radial clearance
Axial clearance
Preload
Bearing fit
Bearing selection
Bearing installation
Bearing performance
Bearing Suffix Code M,,E,Y,W
Bearings practical applications
Ball Bearing open type
Ball Bearing sealed type
Ball Bearing with suffix codes like
Z, ZZ ,RS,2RS, M, E,Y,S1 etc
ball bearing 6305-M
6200ZZ
6200Z
6200RS
62002RS
6306-T
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