Bearing having an array of microasperities

Details Bearing having an array of microasperities Bearing having an array of microasperities

1977-05-13

1982-04-06

Lewis, Michael L.

Metal treatment

Compositions

Heat treating

308241, 428683, 428687, B32B 1518, F16C 3300

Patent

active

043234011

ABSTRACT:
A bearing having a generally flat planer surface of pearlite, and an array of microasperities of martensite on the planer surface, each microasperity including a gently sloping front surface in relation to the direction of movement of the bearing and a sharply sloping rear surface in relation to such direction of movement. A pulsed laser beam or other heat source is focussed on the bearing to produce the array with microasperities of controlled size and shape.

REFERENCES:
patent: 3633010 (1972-01-01), Svetlichny
patent: 3650846 (1972-03-01), Holland et al.
patent: 3656988 (1972-04-01), Steffan et al.
patent: 3756870 (1973-09-01), Kasper et al.
patent: 3945893 (1976-03-01), Ishimori et al.
Hamilton, et al.; Lubrication by Microasperites, in Trans. ASME, Mar. 1961, pp. 177-189.
Otto, D.; Asperite . . . Control . . . Lubrication; in SAE Journ., Feb.1974.
Batelle Research Outlook, Tech. of Rubbing Surfaces, I, Feb. 1969, pp. 26-28.
Anno, et al.; Microasperity Lubrication; in Journ. Lab. Tech., Trans. ASME, Apr. 1968, pp. 251-255.

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