Engine bearing surface treatment

Details Engine bearing surface treatment Engine bearing surface treatment

1993-09-21

1995-07-18

Hannon, Thomas R.

Bearings

Rotary bearing

Plain bearing

384282, 384294, 384625, F16C 3324, F16C 902

Patent

active

054335310

ABSTRACT:
A dispersion of hard, wear-resistant particles such as aluminum oxide is embedded within a shaft-engaging surface of a bearing such that the service life of a shaft and bearing assembly is extended. The relatively hard aluminum oxide particles exert a polishing action on the shaft surface to improve the wear resistance and seizure resistance of the bearing and shaft system. A tumbling barrel, vibratory bowl, air jet, brush or similar apparatus can be used to apply and embed tumbling media particles within the shaft-engaging surface. During the application period, aluminum oxide particles are transferred to the bearing member surfaces by the sliding, rubbing contact between the abrasive bodies and the individual bearing members.

REFERENCES:
patent: 3361502 (1968-01-01), Weinkamer et al.
patent: 4125637 (1978-11-01), Tanner
patent: 4334926 (1982-06-01), Futamura et al.
patent: 4789607 (1988-12-01), Fujita et al.
patent: 4900639 (1990-02-01), Hodes et al.

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