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 bearing shaft ring and rotate the bearing while observing the pointer of the dial indicator. If the pointer deflects, it means that the shaft ring and the center line of the shaft are not perpendicular. 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 reversed, not only the bearing will not work properly, 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 bearing seat hole to compensate for the error caused by inaccurate parts processing and installation. When the center of the bearing ring is offset during operation, the gap This ensures that it adjusts automatically, avoiding contact friction, allowing it to function properly. Otherwise, it will cause severe damage to the bearing.
Post time: Apr-11-2023