Patent ID: 6176619
Filing Date: 2001-01-23
Classification: F16C,Y10S

Abstract:
A water lubricated machine component having contacting sliding surfaces, comprising:a rotary member having a siding surface with a reduced coefficient of friction in the presence of water, anda stationary member having a sliding surface, with a reduced coefficient of friction in the presence of water, facing said rotary member for making sliding contact therewith,wherein said sliding surfaces of said rotary member and said stationary member are disposed so as to be lubricated by said water, and wherein a substrate of either one of said rotary member and said stationary member is a metallic material and a titanium nitride film is formed, by a dynamic ion mixing method on said sliding surface thereof, and wherein the other member is a metallic material having a film of hard material formed thereon comprising a hard chromium plating.