Sliding bearing for sliding surface, has bearing metal layer, supported by support shell, made of aluminum or copper alloy and having lead-free running layer, applied to bearing metal layer over intermediate layer

摘要

The sliding bearing has a bearing metal layer, supported by a support shell, made of an aluminum or copper alloy and having a lead-free running layer, applied to the bearing metal layer over an intermediate layer, made of a zinc matrix having a further alloy element. The zinc matrix of the running layer contains 1 to 49 wt.-per cent bismuth as the additional alloy element. The zinc matrix of the running layer contains 4 to 40 wt.-per cent bismuth, preferably 10 to 30 wt.-per cent bismuth.