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Check the bearing and shoulder level of rolling mill
发布时间:2022-09-29浏览次数:0

Check the bearing and shoulder level of rolling mill


Under normal conditions, the rolling mill bearing with interference device must be close to the shaft shoulder. Inspection method :(1) light method. Line the lamp to the bearing and shaft shoulder, to see the light leakage condition discrimination. If no light leakage, clarify the device is correct; If the average light leakage is around the shaft shoulder, it is clarified that the rolling mill bearing is not close to the shaft shoulder, and pressure should be applied to the bearing to make it close. If there is local light leakage, it is clear that the bearing device is inclined, and the inner ring of the bearing can be struck by hand hammer, copper rod or sleeve to gradually straighten. (2) thickness test method. The thickness of the thickness gauge should start from 0.03mm. During the inspection, try to insert several places on the end face of the inner ring of the bearing and the entire circumference of the shaft shoulder. If there is a gap and it is very average, it is clarified that the bearing is not installed in place. The inner ring of the bearing should be pressurized to make it close to the shaft shoulder. If the pressure is not tight, it is clarified that the rounded corner of the journal is too large and the bearing is stuck. The rounded corner of the journal should be trimmed to make it smaller; If it is found that the thickness gauge of individual parts of the bearing inner ring end face and bearing shoulder can pass through, it is clarified that it must be removed, trimmed and reinstalled at this time. If the bearing is in the bearing seat hole with interference fitting device, the bearing outer ring is fixed by the shell hole shoulder, the end face of the outer ring and the shell hole shoulder end face can be close, the device can be correct, can also be used to test the thickness gauge.


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