Patent ID: 6451452
Filing Date: 2002-09-17
Classification: C25D,F16C,Y10S,Y10T

Abstract:
A composite multilayer material for plain bearing comprising:a metallic backing layer; a bearing metal layer; a diffusion barrier layer, and an electroplated overlay, said bearing characterized by said bearing metal layer being selected from a group of alloys consisting of: Cuâ€”Al, Cuâ€”Zn, Cuâ€”Znâ€”Si, Cuâ€”Znâ€”Al and Cuâ€”Alâ€”Fe; and said bearing metal layer being formed of a lead free copper alloy having a copper content in the range of about 50 to 95 wt. % and said overlay being formed of a lead-free Snâ€”Cu alloy having copper in the range of about 3 to 20 wt. % and tin in the range of about 70 to 97 wt. %.