INFLUENCE OF TRIBOLOGY OF CAGE MATERIAL ON BALL BEARING CAGE INSTABILITY

摘要

By creating a solid lubricant thickness on both bearingrnraces, a cage material of cryogenic ball bearing plays arnsignificant role in the good dynamical behavior of therncage. This role is essential because of the lack of conventionalrnlubricant into this kind of bearing.rnIn this paper, a method able to identify if a particular potentialrncage material can correctly fulfill its function isrndescribed. In other words, if it can lead to a stable movementrnof the cage. From the identification of fundamentalrntribological parameters governing the cage behavior, thisrnmethod presents an example of ranking of such materials.rnThis is based on pin-on-disk tests and on a numericalrnapproach.