Swivel caster assembly

Details Swivel caster assembly Swivel caster assembly

1980-06-13

1982-02-23

Troutman, Doris L.

Miscellaneous hardware (e.g., bushing, carpet fastener, caster,

Casters

Antifrictionally swivelled

B60B 3300

Patent

active

043163050

ABSTRACT:
An improved caster assembly having a stationary base member, a wheel assembly having a rotatable load-supporting wheel, and a ball bearing arrangement supporting the wheel assembly on the base for swiveling rotation with respect thereto. The ball bearing arrangement includes respective generally arcuate raceway surfaces which extend annularly on the base and wheel assembly in spaced, facing relationship to form a ball bearing raceway therebetween. Each raceway surface including two generally arcuate end portions, a portion at one end of each raceway surface being spaced from a cylindrical plane through the centers of the ball bearings in the raceway and another portion at the other end of each raceway surface intersecting and extending beyond the cylindrical plane from the spaced portion. The raceway surfaces are arranged so that the intersecting portion of each raceway surface is oriented in adjacent, facing relation to the spaced portion of the other raceway surface, whereby the spacing between the two raceway surfaces is offset from the cylindrical plane.

REFERENCES:
patent: 793612 (1905-06-01), Self
patent: 1421626 (1922-07-01), Warnock
patent: 1588360 (1926-06-01), Bowen
patent: 1896978 (1933-02-01), Hele-Shaw et al.
patent: 2787804 (1957-04-01), Noelting et al.

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