Ball roller rolling member

Details Ball roller rolling member Ball roller rolling member

2004-12-03

2009-10-13

Ridley, Richard W L (Department: 3656)

Bearings

Rotary bearing

Antifriction bearing

C384S568000

Reexamination Certificate

active

07600922

ABSTRACT:
The present invention provides a ball roller rolling member which can take crossing arrangement, conveyance including alignment and separation can be easily automated, lateral both sides of a rolling curved portion can be easily discriminated and the rolling curved portion thereof can be precisely ground. Such ball roller rolling member comprises a rolling curved portion having a circular-arc outer periphery and end spherical portions provided on both sides of the rolling curved portion so as to be spherically swelled outward, respectively, the rolling curved portion having a radius of the circular-arc portion larger than a radius of curvature of each of the end spherical portions. The rolling curved portion has the maximum diameter longer than a distance between the end spherical portions, the ball roller rolling members are arranged between a pair of track grooves having track surfaces perpendicular to each other so that rotational axes of the adjacent ball roller rolling members are alternately perpendicular to each other, and one of the end spherical portions is formed with a spherical recessed portion having a radius of curvature equal to that of the one of the end spherical portions.

REFERENCES:
patent: 3713712 (1973-01-01), Derner et al.
patent: 5890815 (1999-04-01), Ijuin et al.
patent: 6390685 (2002-05-01), Shimomura et al.
patent: 2207957 (1989-02-01), None

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