Slew ring bearing

Details Slew ring bearing Slew ring bearing

1988-07-27

1990-03-06

Hannon, Thomas R.

Bearings

Rotary bearing

Antifriction bearing

384507, 384551, 384619, F16C 1930, F16C 1940

Patent

active

049061135

ABSTRACT:
A slew ring bearing for coupling the superstructure of a large piece of heavy equipment to the base having an inner ring attachable to the underside of the superstructure and an outer ring having gear teeth on its outer cylindrical surface concentric with the inner ring and attachable to a stationary base frame. An upper and lower V-groove are found in an outer cylindrical face of the inner ring. Corresponding upper and lower V-grooves are formed on an inner cylindrical face of the outer ring positioned opposite corresponding upper and lower V-grooves on the inner ring so as to form in combination therewith associated upper and lower roller bearing raceways. A plurality of rolling elements are positioned in the upper and lower raceways so as to permit rotation of the inner ring relative to the outer ring. A plurality of bronze spacers are positioned with one spacer between each pair of rollers.

REFERENCES:
patent: 2008378 (1935-07-01), Witte
patent: 3814488 (1974-06-01), Rood
patent: 3948578 (1976-04-01), Martin
patent: 3967867 (1976-07-01), Richardson

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