Browse Publications Technical Papers 2001-01-1077
2001-03-05

New Aluminum Alloy Bearing with Higher Wear Resistance 2001-01-1077

The recent demands for higher performance and lower fuel consumption of automotive engines require the bearings to operate under severe conditions. One of the problems with conventional aluminum alloy bearings used under these conditions is the low wear resistance. A new aluminum alloy bearing that allows a higher wear resistance is developed by controlling Si particle size and lining hardness. The mechanism to upgrade the wear resistance are the concentration of enlarged Si particles on the sliding surface and to prevent falling off Si that are held by sufficient lining hardness. Wear resistance of this bearing is 4-5 times better compared with the conventional bearings and seizure resistance is two times better than the conventional bearings.

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