Patent ID: 6491437
Filing Date: 2002-12-10
Classification: F16C

Abstract:
A plain bearing comprising a back metal, a bearing alloy layer provided on the inner surface of the back metal, an intermediate layer provided on the bearing alloy layer and an overlay layer provided on the intermediate layer, wherein:the bearing alloy layer has an inner surface having a textured uneven surface, said textured uneven surface comprising a number of protrusions, wherein said protrusions are of predetermined size and shape, which textured uneven surface has been formed by etching of the inner surface provided with a mask whereby masked areas are protected from etching, wherein the etching depth of the bearing alloy layer is at least 10 &mgr;m up to 50 &mgr;m; and wherein the intermediate layer is formed on the uneven surface of the bearing alloy layer so as to follow the textured uneven surface so that the intermediate layer has also a textured uneven surface.