Crossed roller bearing

Details Crossed roller bearing Crossed roller bearing

1993-04-02

1995-04-25

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384619, 384537, 384584, 384909, 384565, 384569, F16C 3334, F16C 3364

Patent

active

054093163

ABSTRACT:
A crossed roller bearing in which the rollers are oriented with their axes of rotation effectively crossed perpendicular to each other can be made from four molded plastic parts which are outer and inner split rings where the outer rings are joined side-by-side and have surfaces extending inwardly from the inner periphery which define a outer V-groove. Sets of rollers are connected at corners of one end face by frangible connections to the inside peripheries of each of the grooves and extend radially inwardly away from the inner periphery. The outer periphery of an inside pair of rings also has faces which form a V-groove opposed to the V-groove of the outer rings, when the inner rings are advanced toward each other and joined inside the outer rings. The ends of the inner rings engage the end faces of the rollers and pivot the rollers, preferably about corners in steps on the faces which form the V-grooves which define fulcrums. Tensile forces are applied to the frangible interconnections which break them and turn the rollers so that they lie in crossed relationship in raceways provided by the opposed grooves. A separator may be located between the rollers to maintain their space relationship in the raceway grooves. Thus, the bearing is assembled from a minimum of four parts and an optional separator. The plastic materials used and the ease of assembly reduces the cost of the bearing significantly below conventional metal crossed roller bearings.

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patent: 5022768 (1991-06-01), Baxter
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