COMPOSITE LAYER MATERIAL FOR SLIDE BEARING HAVING SUPPORTING LAYER

摘要

PROBLEM TO BE SOLVED: To obtain a composite layer material showing no embrittlement even at a relatively high temp. regardless of the incorporation of copper in an electroplated of sliding layer. SOLUTION: This composite layer material is for a slide bearing having a supporting layer, an alloy layer composed of a copper alloy contg. 50 to 95 wt.% copper components or an aluminum alloy contg. 60 to 95 wt.% aluminum components, a diffusion stopping layer and a plated sliding layer composed of an alloy contg. tin and copper and contg. no lead, and the sliding layer contains 8 to 30 wt.% copper, 60 to 97 wt.% tin and 0.5 to 10 wt.% cobalt.