Thrust cage roller circle

Details Thrust cage roller circle Thrust cage roller circle

1992-04-07

1993-04-27

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384618, 384623, F16C 1930, F16C 3358

Patent

active

052056570

ABSTRACT:
A roller circle for hoisting and excavating equipment has upper and lower spaced annular rails. A plurality of tapered rollers are disposed between the rails in rolling contact with bearing surfaces of the rails. Each of the rollers is mounted on a shaft. Inner and outer cages connect the projecting ends of the shafts and are joined together by through rods. A portion of the inner cage overlies a side face of a rail and a pad is disposed between the inner cage portion and the side of the rail. A second pad is disposed between the outer cage and the larger ends of the rollers. Thrust loads are transferred from the rollers to the outer cage and through the rods to the inner cage and then to the rail.

REFERENCES:
patent: 355376 (1887-01-01), Browne et al.
patent: 555655 (1896-03-01), Mossberg
patent: 581858 (1897-05-01), Grundler
patent: 726043 (1903-04-01), Freeburg
patent: 3199329 (1965-08-01), Toth
patent: 3777900 (1973-12-01), Brewer
patent: 3985406 (1976-10-01), Baron
patent: 4582436 (1986-04-01), Merron
patent: 4723852 (1988-02-01), Ehret
patent: 5121561 (1992-06-01), Palfreyman
Torrington Catalog, p. 111, No date.
Torrington Catalog, V-Flat Thrust Bearings, p. 210, no date.

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