Multilayer slide bearing and bearing assembly

摘要

A slide bearing which is preferably used in combination with a low-rigid aluminum alloy housing. The slide bearing has a high coefficient of thermal expansion so that it can satisfactorily follow up deformation of the housing, and the bearing also has an excellent heat radiation property. In the slide bearing, an overly bearing layer having a thickness of 3 to 50 mu m is provided on a copper alloy layer having a coefficient of thermal expansion of 15x10-6/ DEG C. or more, a coefficient of thermal conductivity of 0.40 cal/cm sec DEG C. or more and 0.2% proof stress of 295N/mm2 or more. As occasion demands, the slide bearing may be (1) provided with an intermediate layer between the copper alloy layer and the overlay bearing layer, or (2) flash-plated on an entirety surface of the bearing.