TRACK ROLLER BEARING FLOATING SLEEVE SYSTEM

摘要

A track roller bearing having a floating sleeve between the inner race and outer race. The floating sleeve has a selflubricating bearing material on its outer surface. The coefficient of friction of the self-lubricating bearing material increases as the material is worn. When the self-lubricating bearing material coefficient of friction exceeds the coefficient of friction of the floating sleeve inner surface, the floating sleeve will rotate with the outer race until a new unworn surface of self-lubricating bearing material is presented to the load area of the outer race. This precessing of the floating sleeve will continue until the entire surface area of the self-lubricating bearing material is worn, thus extending the track roller bearing life.