Method of producing bearing component

Details Method of producing bearing component Method of producing bearing component

1982-05-14

1985-04-02

Jillions, John M.

Bearings

Rotary bearing

Antifriction bearing

204 37R, 384492, 384548, F16C 3366, F16C 3300, F16C 3332, C25D 550

Patent

active

045083967

ABSTRACT:
A method of producing a bearing component such as an inner ring, an outer ring and rolling elements having a solid lubricant on a frictional surface part thereof, which comprises a step of forming a coating of a material on a frictional surface part of a metal substrate, the solubilities of the coating material in the substrate metal and in the solid lubricant being higher than the mutual solubility of the substrate metal and the solid lubricant, a step of providing on a surface part of the coating a solid lubricant consisting of a metallic material having a low solubility in the substrate metal, and a step of maintaining the solid lubricant, the coating and the metal substrate for a predetermined period of time at a predetermined temperature of below the lower one of the maximum operating temperature of the bearing component and the melting point of the solid lubricant so as to induce mutual diffusion between the metal substrate, the coating and the solid lubricant, thereby increasing the bonding strength between them, and a bearing comprising the bearing component produced by the method.

REFERENCES:
patent: 2354763 (1944-08-01), Machlett
patent: 4072368 (1978-02-01), Ehrentraut
patent: 4088803 (1978-05-01), Kubo et al.
patent: 4092448 (1978-05-01), Coll-Palagos
patent: 4176014 (1979-11-01), Ruscoe et al.
patent: 4293171 (1981-10-01), Kakumoto et al.

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