MULTI-LAYER PLAIN BEARING HAVING AN ANTI-FRETTING LAYER
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United States of America Patent
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Issued Date -
Aug 22, 2013
app pub date -
Apr 14, 2011
filing date -
Apr 15, 2010
priority date (Note) -
Abandoned
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Abstract
The invention relates to a multi-layer plain bearing (1) that has a front side (4) that can face the element to be supported and a rear side (6) opposite the front side, comprising a supporting layer (2), a sliding layer (3) arranged on the front side (4) and an anti-fretting layer (5) arranged on the rear side (6), wherein the anti-fretting layer (5) is made of a copper-based alloy having copper mixed-crystal grains. The copper-based alloy of the anti-fretting layer (5) is formed by a binary alloy having an alloying element from the group comprising aluminum, zinc, indium, silicon, germanium, and antimony or by an at least ternary alloy having one alloying element from the group comprising aluminum, zinc, indium, silicon, germanium, tin, and antimony and at least one further element from the group and/or the further group comprising nickel, cobalt, iron, manganese, bismuth, lead, silver and phosphorus, possibly with unavoidable impurities originating from production, wherein the total fraction of the alloying elements is at least 1 wt. % and at most 30 wt. %.
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