Method of checking the tightness of rolling bearing and shaft shoulder
(1) Lighting method. That is to say, aim the light at the bearing and the shaft shoulder, and judge the light leakage. If there is no light leakage, it means the installation is correct; if there is even light leakage around the shaft shoulder, it means the bearing is not close to the shaft shoulder, pressure should be applied to the bearing to make it close; if there is some light leakage, it means that the bearing installation is inclined. You can use a hammer or copper rod. Or the sleeve knocks on the inner ring of the bearing and slowly settles.
(2) Thickness gauge inspection method. The thickness of the thickness gauge should start from 0.03mm. During the inspection, try to insert several places on the entire circumference of the bearing inner ring end face and the shaft shoulder. If there is a gap and it is very uniform, it means that the bearing is not installed in place. The bearing inner ring should be pressurized to make it close to the shaft shoulder; if it is enlarged The pressure is not tight, indicating that the rounded corners of the rounded part of the journal are too large and the bearing is stuck. The rounded corners of the journal should be trimmed to make it smaller; Passed, it means that it must be disassembled, repaired, and reinstalled at this time. If the bearing is installed in the bearing housing hole with an interference fit and the outer ring of the bearing is fixed by the housing hole shoulder, whether the end face of the outer ring and the housing hole shoulder end face are tight and whether the installation is correct can also be checked with a thickness gauge.
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