Multi-layered plain bearing
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United States of America Patent
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Sep 6, 2016
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app pub date -
Dec 16, 2014
filing date -
Jan 31, 2014
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Abstract
The invention relates to a multi-layered plain bearing (1) comprising a sliding layer (5) made from a tin-based alloy, which contains between 1 wt. % and 8 wt. % Sb, between 8 wt. % and 20 wt. % Cu and if necessary at least one of the elements Si, Cr, Ti, Zn, Ag and Fe, wherein the proportion of each of these elements is between 0.1 wt. % and 2 wt. %, the total content of all of the alloy elements is a maximum of 30 wt. % and remainder is formed by Sn, wherein at least a proportion of the Cu with Sn is present as a copper-rich deposit in the tin matrix with a maximum particle size of 50 nm and/or in addition contains at least one further element from a second group consisting of Al, Bi and Ni, wherein the proportion of the at least one further element is between 0.1 wt. % and 5 wt. % for each of said elements, and wherein the sliding layer (5), which contains at least one element of the second element group, is deposited by a PVD-method when the particle size of the nanoparticles is greater than 50 nm.
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