Inspection of thrust KOYO bearing after installation

When installing thrust bearings, check the perpendicularity of the shaft ring and the center line of the shaft. The method is to fix the dial indicator on the end face of the case, make the contacts of the meter stand on the raceway of the KOYO bearing shaft ring and turn the KOYO bearing while observing the pointer of the dial indicator. If the pointer deflects, it means that the shaft ring and the shaft center line are not consistent. vertical. When the casing hole is deep, it can also be inspected with an extended dial indicator head.

When the thrust bearing is installed correctly, its seat ring can automatically adapt to the rolling of the rolling elements to ensure that the rolling elements are located in the raceways of the upper and lower rings. If it is installed upside down, not only the KOYO bearing will not work normally, but also the mating surfaces will be severely worn. Since the difference between the shaft ring and the seat ring is not obvious, extra care should be taken during assembly, and no mistakes should be made. In addition, there should be a gap of 0.2-0.5mm between the seat ring of the thrust bearing and the KOYO bearing seat hole to compensate for the error caused by inaccurate parts processing and installation. When the center of the KOYO bearing ring is offset during operation, This clearance ensures that it automatically adjusts to avoid contact friction, allowing it to function properly. Otherwise, it will cause severe damage to the KOYO bearing.

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Post time: Jan-16-2023