Patent ID: 6060179
Filing Date: 2000-05-09
Classification: B32B,C22C,F16C,Y10S,Y10T

Abstract:
A Cu--Pb alloy bearing without overlay consisting of a backing metal layer and a Cu--Pb bearing alloy layer which is bonded to the backing metal layer and whose matrix contains dispersed Pb-phase grains, and optionally a non-overlay plating layer of at least one of In and Sn having a maximum thickness of 5.0 .mu.m wherein:with regard to the Cu--Pb bearing alloy layer, within an at least 30 .mu.m thick surface region of the Cu--Pb bearing alloy layer, the Pb-phase grains comprise at least one of In and Sn in an amount or a total amount of not less than 2 wt %, respectively, which are elements added into the Pb-phase grains by migration.