Patent ID: 9416821
Filing Date: 2016-08-16
CPC Classification: C23C,C25D,F16C

Claim Text:
1. A cage for a rolling bearing retaining rolling elements of said rolling bearing, wherein of an entire outermost surface of said cage, a tin alloy film consisting of tin and a metal other than said tin is formed on at least a sliding-contact surface of said cage to be subjected to sliding contact with said rolling elements and a sliding-contact surface thereof to be subjected to sliding contact with other members; said metal other than said tin has a lower surface free energy than iron; in said tin alloy film, as a weight ratio (wt %) between said tin and said metal other than said tin, (tin: metal other than tin)=(65:35) to (95:5); and a thickness of said tin alloy film is set to more than 5 μm and less than 30 μm.