Machine parts having minute random recesses

Details Machine parts having minute random recesses Machine parts having minute random recesses

1990-11-29

1991-11-12

Hannon, Thomas R.

Bearings

Bearing-surface treatment

384420, 384450, 384492, 384565, F16C 3312, F16C 3364

Patent

active

050642987

ABSTRACT:
A machine part having a rolling or sliding surface formed with a plurality of minute recesses at random with the SK value less than zero in both the longitudinal and circumferential directions, and the area ratio of the recesses to the whole rolling surface being 10-40 percent.

REFERENCES:
patent: 2433457 (1947-12-01), Jarrett et al.
patent: 4776237 (1988-10-01), Premiski et al.
patent: 4893387 (1990-01-01), Akamatsu et al.
patent: 4973068 (1990-11-01), Lebeck

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