Generally speaking, rolling bearings with tight fit interference mounting must be tight against the shoulder. Then how to inspect it? The following to share about the rolling bearing and shaft shoulder against the degree of tightness of the detection method, I hope that everyone's bearings with the installation has some help.

(1) Light method. This method is to align the electric light at the bearing and the shoulder, and judge according to the light leakage. If there is no light leakage, it means that the installation is correct; if the light leakage is uniform along the shoulder, it means that the rolling bearing is not tightened with the shoulder, and the rolling bearing should be pressurized to make it tight; if there is part of the light leakage, it means that the bearing is installed tilted, and it can be used with a hammer, a brass rod or a socket to strike the inner ring of the bearing, and gradually set it straight.

(2) Thickness gauge inspection method. The thickness of the gauge should be 0.03mm. Inspection, in the bearing inner ring end face and shoulder of the whole circumference of the trial insert several places, such as found a gap and very uniform, that bearing is not loaded in place, the bearing should be bearing inner ring pressurized to make it tight against the shoulder; if you increase the pressure is also against the tight, that the journal rounded parts of the rounded corner of the angle is too large, the bearing stuck, should be trimmed journal rounded corner, so that it is small; if the bearing inner ring end face and bearing shoulder individual parts of the thickness of the gauge can be passed, that is not at this time must be disassembled, the bearing must be dismantled. It means not at this time must be disassembled, be trimmed, reinstalled.

If the bearing is installed in the bearing housing hole with interference fit, the bearing outer ring is fixed by the shell hole shoulder, the outer ring end face and the shell hole shoulder end face is tight, whether the installation is correct, can also be used to check the thickness of the gauge.

Such as: thrust bearing installation inspection

When installing thrust bearings, the perpendicularity of the collar and shaft centerline should be checked. The method is to fix the micrometer on the end face of the case shell, so that the table contact top in the bearing shaft circle raceway while turning the bearing, while observing the micrometer pointer, if the pointer is swinging, that is, the shaft circle and shaft center line is not perpendicular. Case shell hole is deeper, can also be used to lengthen the micrometer head test.

Thrust bearings installed correctly, its seat can automatically adapt to the rolling body rolling to ensure that the rolling body is located in the upper and lower circle raceway. If the installation is reversed, not only bearing work is not normal, and each surface will be severely worn. Due to the shaft ring and seat ring and the difference is not very obvious, assembly should be extra careful, do not get it wrong. In addition, the thrust bearing seat ring and bearing holes should be left between 0.2-0.5mm clearance to compensate for parts processing, installation of inaccurate error, when the operation of the bearing collar center shift, this gap can ensure that its automatic adjustment to avoid touching the friction, so that it operates normally. Otherwise, it will cause drastic damage to the bearing.