Extension of bearing endurance life by ion implantation

摘要

The oscillatory characteristics of ionhyphen;implanted ball bearings are described. Nhyphen;implanted bearings are found to have lower starting torque and longer endurance life both in a vacuum as well as in air than unimplanted bearings. Typical starting torque in air can be reduced by 0.8 thus extending bearing life from 104to 106cycles. The effect of ion implantation is discussed with respect to the mechanism of fretting wear in ball bearings subjected to relatively smallhyphen;angle oscillatory motion.