Chain with oilless antifriction bearing

Details Chain with oilless antifriction bearing Chain with oilless antifriction bearing

1996-08-05

1998-10-20

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384463, F16C 3366

Patent

active

058236864

ABSTRACT:
An oilless antifriction bearing capable of supporting a large load, not requiring maintenance work for lubrication and having high durability comprises an outer ring (1) having an outer-ring race, an inner ring (2) having an inner-ring race, a plurality of metallic rolling elements (3), and a plurality of polyethylene rolling elements (4). The plurality of metallic rolling elements (3) and the plurality of polyethylene rolling elements (4) are arranged circumferentially alternately in the space between the outer-ring race of the outer ring (1) and the inner ring race of the inner ring (2). The polyethylene rolling elements (4) are interposed between the metallic rolling elements (3) to prevent the direct contact between the metallic rolling elements (3), making lubrication unnecessary. The polyethylene rolling elements allow free foreign matter including abrasive particles produced by the abrasion of the unlubricated steel cylindrical rollers and external dust particles to become embedded in the polyethylene to entrap the free foreign matter.

REFERENCES:
patent: 3425759 (1969-02-01), Schwarzschild
patent: 3441327 (1969-04-01), Peter et al.
patent: 3764188 (1973-10-01), Suska
patent: 3848937 (1974-11-01), Harder, Jr.

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