Federal-mogul World Wide, Inc.

Daniel E Dugan

James Robert Toth

Michael D Lytwynec

A multilayer engine bearing (,) includes a steel backing (,) having a liner (,) of bearing metal of either copper-lead or aluminum alloys formed on the backing (,) and a thin layer (,) of either copper or nickel plated on the liner (,) to define a base lining member (,) of the bearing (,). A multilayer overplate (,) is formed on the base lining member (,) and includes an underlayer (,) of a lead-tin-copper alloy having a thickness of about 10 &mgr;m and an overlayer (,) of tin having a thickness of about 5 &mgr;m. The multilayer overplate (,) exhibits exceptional fatigue resistance under high dynamic loading conditions and retains good conformability and embedibility characteristics.

Multi-layer engine bearings and method of manufacture

A multilayer engine bearing (26) includes a steel backing (36) having a liner (38) of bearing metal of either copper-lead or aluminum alloys formed on the backing (36) and a thin layer (44) of either copper or nickel plated on the liner (38) to define a base lining member (40) of the bearing (26). A multilayer overplate (46) is formed on the base lining member (40) and includes an underlayer (48) of a lead-tin-copper alloy having a thickness of about 10 .mu.m and an overlayer (50) of tin having a thickness of about 5 .mu.m. The multilayer overplate (46) exhibits exceptional fatigue resistance under high dynamic loading conditions and retains good conformability and embedibility characteristics.

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Rochester, MI, United States of America

Daniel E Dugan