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US 8,771,838 B2Granted
Sliding bearing element comprising a lead-free aluminum bearing metal layer
AssigneeFederal-Mogul Wiesbaden GmbH
InventorsThomas Grooteboer, Karl-Heinz Lindner, Karl-Heinz Lebien
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Abstract
The invention relates to a sliding bearing element comprising a supporting layer, an aluminum alloy-based intermediate layer, and an aluminum alloy-based bearing metal layer. The aluminum alloy composition of the intermediate layer includes at least the following components in percent by weight: 3.5 to 4.5 of copper; 0.1 to 1.5% of manganese; 0.1 to 1.5% of magnesium; and 0.1 to 1.0% of silicon.
Claims16
A plain bearing element having a support layer, an intermediate layer based on an aluminum alloy and a bearing metal layer based on an aluminum alloy wherein:
- the aluminum alloy of the intermediate layer includes (in weight %):
- Copper
- 3.5% to 4.5%,
- Manganese
- 0.1% to 1.5%
- Magnesium
- 0.1% to 1.5%.
- and wherein the intermediate layer has a microhardness of 70 HV 0.01 to 110 HV 0.01.
5 more elements
Dependencies are inferred from the claim text.