Rolling apparatus

Details Rolling apparatus Rolling apparatus

1997-08-28

1999-07-27

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384625, 384913, F16C 3362

Patent

active

059278650

ABSTRACT:
A rolling apparatus comprising rolling elements disposed between an outer member and an inner member, the rolling elements rolling along a first contact surface, which is the contact surface of the outer member with the rolling elements, and along a second contact surface, which is the contact surface of the inner member with the rolling elements, wherein a film composed of a nickel-tungsten alloy is formed on at least one of the rolling elements, the first contact surface and the second contact surface, and the film has a thickness of from 2 to 30 .mu.m and a tungsten atom weight ratio of at least 35% by weight. The rolling apparatus has a high corrosion resistance to a strong acid such as hydrochloric acid or sulfuric acid and a strong alkali.

REFERENCES:
patent: 4960643 (1990-10-01), Lemelson
patent: 5322735 (1994-06-01), Fridez et al.
patent: 5352046 (1994-10-01), Ward
patent: 5441024 (1995-08-01), Wietig et al.

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