Trimetallic bearings

Details Trimetallic bearings Trimetallic bearings

1984-09-12

1985-08-06

Footland, Lenard A.

Bearings

Rotary bearing

Plain bearing

308DIG14, F16C 1702, F16C 3700

Patent

active

045332622

ABSTRACT:
For use in a pressure fed or flood lubricated bearing, there is disclosed a shaft load-bearing element (e.g., the thrust plate in a tapered land thrust bearing) preferably comprising three metallic layers including an inner layer adjacent the shaft surface of metal possessing good bearing properties; an outer layer of structural steel to provide rigidity; and an intermediate layer of copper or copper alloy sandwiched between the inner and outer layers to provide good thermal properties. The metallic layers of such a trimetallic bearing element are metallurgically bonded at the interfaces between layers to enhance heat transfer. Advantageously, a shaft load-bearing element according to the invention is substantially free from distortion and damage during handling and avoids elevated temperature problems. A load-bearing element according to the invention may be fabricated as a tilting pad for use in a journal bearing, as a thrust plate for a tapered land thrust bearing, or as a tilting shoe for a thrust bearing.

REFERENCES:
patent: 4277113 (1981-07-01), Heshmat

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