Rolling bearing

Details Rolling bearing Rolling bearing

1994-12-22

1996-05-14

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384912, F16C 3362

Patent

active

055162142

ABSTRACT:
The outer surface of a rolling element (3) of a rolling bearing is coated with a lubricating film (4) having three layers (5, 6, 7). The bottommost layer (5) coated on the surface of the rolling element (3) is made of Sn; the intermediate layer (6) coated on the surface of the bottommost layer (5) is made of Ag; and the topmost layer (7) coated on the surface of the intermediate layer (6) is made of Pb. As a result of this construction, Ag serves as a binder between the Pb-Sn alloy and steel constituting an inner race member (1), an outer race member (2) and/or the rolling element (3), which in turn renders the lubricating film (4) wettable with respect to the surfaces of the inner and outer race members (1, 2) defining a race and the outer surface of the rolling element (3). Hence, stable lubrication between the bearing components can be implemented.

REFERENCES:
patent: 3198735 (1965-08-01), Lamson et al.
patent: 3722969 (1973-03-01), Eklund
patent: 4072368 (1978-02-01), Ehrentraut
patent: 4293171 (1981-10-01), Kakumoto et al.
patent: 4490264 (1984-12-01), Gerkema et al.
patent: 4946747 (1990-08-01), Bergmann et al.

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