Composite sliding element e.g. plain nearing bush, has sliding bearing layer formed from tin bronze and exhibiting specific thickness, where tin bronze comprises specific weight percentage of tin, copper and impurities

摘要

The element has a sliding bearing layer formed from cast tin bronze that comprises 3.7-5.1 weight percentage of tin, 0.03-0.06 residual copper and impurities. The tin bronze exhibits average grain size that is equal to or less than 3 micrometer, where thickness of the sliding bearing layer is 0.1 mm to 4 mm. The tin bronze is subjected to hot forming process, cold forming process and recrystallization annealing process. Functional covering or intermediate layers are formed in the element.