Composite material for a sliding bearing comprising an aluminum bearing metal layer
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Sep 17, 2015
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Oct 14, 2014
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Abstract
A sliding-hearing composite material includes a steel supporting layer (10), an intermediate layer (12) based on an aluminum alloy that is free of lead, and a bearing metal layer (14) based on an aluminum alloy that is free of lead, wherein the aluminum alloy of the intermediate layer (12) has a composition having 3.5 to 4.5 wt % copper, 0.1 to 1.5 wt % manganese, 0.1 to 1.5 wt % magnesium, and the usual admissible impurities, the remainder being aluminum, and wherein the aluminum alloy of the bearing mental layer (14) has a composition having wt % tin, 1.0-3.0 wt % nickel, 0.5-1.0 wt % manganese, 0.5-1.0 wt % copper, 0.15-0.25 wt % chromium, 0.1-0.3 wt % vanadium, and the usual admissible impurities, the remainder being aluminum. A sliding bearing element and the use of the sliding-bearing composite material for sliding bearing element, particularly sliding bearing shells, sliding bearing bushes, or thrust washers is also disclosed.
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