How to test the thrust bearing after installation

When installing a thrust bearing, check the verticality of the shaft ring and shaft centerline. The method is to fix the dial gauge on the end face of the shell, so that the contacts of the watch rotate on the bearing on the raceway of the bearing shaft ring, and observe the pointer of the dial gauge. If the pointer yaw, it means that the shaft ring and the center line of the shaft are not perpendicular. When the shell hole is deep, it can also be tested with an extended meter head.
When the thrust bearing is installed correctly, its seat ring can automatically adapt to the rolling body's rolling to ensure that the rolling body is located in the upper and lower ring raceways. If installed backwards, not only the bearing does not work properly, but each mating surface will be severely worn. Since the difference between the shaft ring and the seat ring is not obvious, care should be taken in the assembly to avoid mistakes. In addition, there should be a 0.2-0.5mm gap between the bearing ring of the thrust bearing and the bearing seat hole to compensate for the error caused by the inaccurate machining and installation of the part. When the center of the bearing ring is offset during operation, the clearance is It ensures that it adjusts automatically, avoids touching friction and allows it to operate normally. Otherwise, it will cause severe damage to the bearing.