Issues regarding the fixed-end configuration in the arrangement of rolling bearings
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The fixed-end type is only suitable for applications where the operating temperature rise is not high and the shaft is short (span L < 400 mm). An axial clearance C should also be provided between the outer ring of the bearing and the bearing cover to compensate for the thermal expansion of the shaft. The question is: In order to compensate for thermal expansion at one of the bearing ends, a certain gap needs to be left between the outer ring and the bearing end cover. But what is the fit condition between the outer ring and the bearing cover in this case? If it is a tight fit, the outer ring will experience wear due to axial thermal expansion ； If it is a clearance fit, then this end bearing becomes the floating end.
There are various types of bearings, each with its own design. The bearings used in a set of rotors differ from one another; in addition to serving to support and fix the components in place, they also play a role in limiting their movement. I don’t understand your question. It’s better to describe the problem more comprehensively. The bearings used in a set of rotors should have both thrust-bearing and supporting functions; in short, it doesn’t seem right to mention just one of these functions.
If a single character is entered incorrectly, what is the fitting condition between the outer ring and the bearing seat?
I understand, but I can’t explain it