5, Bearing burns: burned bearings have tempering color […]
5, Bearing burns: burned bearings have tempering color on the raceway and rolling elements. The causes of burns are generally insufficient lubrication, the quality of the lubricant does not meet the requirements or deterioration, and the bearing assembly is too tight.
6. The cage is broken: The reason is insufficient lubrication, broken rolling elements, and skewed seat.
7. The metal of the cage adheres to the rolling elements: The possible cause is that the rolling elements are caught in the cage or are insufficiently lubricated.
8. Bearing race crack: The cause of the crack in the bearing race may be that the bearing is too tight, the foreign or inner ring of the bearing is loose, the bearing of the bearing is deformed, and the surface of the bearing is poorly processed.