Linear motion rolling contact bearing assembly having a load dep

Details Linear motion rolling contact bearing assembly having a load dep Linear motion rolling contact bearing assembly having a load dep

1986-05-15

1987-09-08

Levy, Stuart S.

Bearings

Linear bearing

Recirculating

384 43, F16C 3106

Patent

active

046920382

ABSTRACT:
A linear motion rolling contact bearing assembly includes a rail, a slider movable along the rail, and a plurality of balls partly interposed between the slider and the rail to provide a rolling contact relation between the slider and the rail. The rail is provided with at least one inner guide groove and the slider is provided with at least one outer guide groove which is located in an oppositely disposed relation to the inner guide groove, thereby defining a load section. The slider is also provided with an endless path which includes the load section as a part thereof, and a plurality of balls are received in the endless path. The inner and outer guide grooves are structured such that each of the balls in the load section contacts at one point with each of the inner and outer guide grooves under light load conditions. Under heavy load conditions, all of the balls in the load section contact at two points with each of the inner and outer guide grooves to provide an increased load bearing ability.

REFERENCES:
patent: 42066 (1864-03-01), Bishop
patent: 2047868 (1936-07-01), Harley
patent: 2400374 (1946-05-01), Selnes
patent: 3311426 (1967-03-01), Binns
patent: 3721478 (1973-03-01), Anderson et al.
patent: 3934946 (1976-01-01), Burr et al.
patent: 4441765 (1984-04-01), Kasai et al.
patent: 4502737 (1985-03-01), Osawa

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