Multi-layer engine bearings and method of manufacture

Details Multi-layer engine bearings and method of manufacture Multi-layer engine bearings and method of manufacture

1998-05-01

1999-12-14

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

F16C 1702

Patent

active

060008539

ABSTRACT:
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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