slip bearing composite material, and use of slip bearing composite material

摘要

The present invention relates to a sliding bearing composite material with a steel support layer (10), an intermediate layer (12) based on a lead free aluminum alloy and a metallic bearing layer (14). based on a lead-free aluminum alloy, the intermediate layer aluminum alloy (12) having a composition of 3,5 - 4,5 wt.% copper, 0,1 - 1,5 wt.%. manganese, 0,1 - 1,5% by weight, of magnesium, the usual permissible impurities and the remainder of aluminum, and the aluminum alloy of the bearing metal layer (14) has a composition of 6,0 - 8.0% by weight tin, 1.0 - 3.0% by weight, nickel, 0.5 - 1.0% by weight, manganese, 0.5 - 1.0% by weight, copper, 0.15 - 0.25 wt.%, chrome, 0.1 - 0.3 wt.% vanadium, the usual allowable impurities and the remainder of aluminum. The invention further relates to a plain bearing element and the use of the plain bearing composite material for plain bearing elements, in particular, plain bearing housings, plain bearing bushings or thrust washers.