Impact of Sulfur Pollution Silver Cage on Bearing Operating Performance

Sulfur pollution on the silver cage leads to discoloration. Depot rework of silvered bearing cage caused by discoloration leads to great financial losses. In this paper, using a self-made high speed bearing bench test apparatus and the ball disc friction test machine assess the impact of sulfur pollution silver cage on bearing operating performance. The friction property of cage study on the ball disc friction test machine shows that the friction coefficient of silver sulfide film bearing cage is lower than that without pollution. The results from bearing bench test illustrates that the system power loss with sulfur pollution is slightly lower than that without pollution, and the sulfur pollution has little effect on bearing temperature rise. From the experimental results obtained, there is no necessary depot rework for the sulfur pollution sliver bearing cage from the perspective of the use of performance.