Linear motion guide unit having a long stroke

Details Linear motion guide unit having a long stroke Linear motion guide unit having a long stroke

1991-03-25

1992-04-28

Footland, Lenard A.

Bearings

Linear bearing

Recirculating

F16C 2906

Patent

active

051081970

ABSTRACT:
A linear motion rolling contact guide unit includes a guide rail, a slider and a plurality of rolling members interposed between the guide rail and the slider. The guide rail is formed with a pair of upper inner guide grooves and a pair of lower inner guide grooves and the slider is formed with a pair of upper outer guide grooves and a pair of lower outer guide grooves correspondingly. The guide grooves are arranged such that two contact points between a rolling member and an associated upper pair of inner and outer guide grooves and two contact points between a rolling member and an associated lower pair of inner and outer guide grooves define a straight line. Preferably, the center of each of the rolling members also lies on the straight line.

REFERENCES:
patent: 4692038 (1987-09-01), Kasai
patent: 4695170 (1987-09-01), Teramachi
patent: 4832508 (1989-05-01), Teramachi
patent: 4880317 (1989-11-01), Teramachi

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