Track guide linear motion bearing device

Details Track guide linear motion bearing device Track guide linear motion bearing device

1981-03-03

1982-11-30

Ward, Jr., Robert S.

Cutlery

308 3A, 464167, F16C 2904, F16D 306

Patent

active

043613667

ABSTRACT:
A track guide linear motion bearing device comprises an outer sleeve, a square elongated guide bar, a retainer, a number of balls, and end caps. The outer sleeve has three no-load ball guide grooves formed in the axial inner surface thereof having a substantially C-shaped cross-section and two ball rolling grooves formed between the no-load ball guide grooves. The grooves extend over the entire axial length of the outer sleeve. The guide bar is provided, in both upper corner portions thereof, with axially extending ball guide grooves corresponding to the ball rolling grooves of the outer sleeve. The retainer is loosely fitted between the guide bar and the outer sleeve and is formed in the outer surface thereof with a plurality of outwardly opening endless track grooves each comprising a load side groove, a no-load side groove and a U-turn groove. The balls are disposed for rolling in the endless track grooves of the retainer and held between the ball rolling grooves of the outer sleeve and the ball guide grooves of the guide bar in the through-hole portions of the load side grooves of the retainer. The end caps are secured to the ends of the outer sleeve to restrain the axial movement of the retainer. Each of the end caps has guide surfaces corresponding in number to the endless track grooves which guide the balls rolling in the U-turn grooves of the retainer.

REFERENCES:
patent: 2452117 (1948-10-01), Ferger
patent: 3552806 (1971-01-01), Weasler et al.
patent: 3800558 (1974-04-01), Buthe et al.
patent: 3808839 (1974-05-01), Teramachi
patent: 3897982 (1975-08-01), Teramachi
patent: 3938854 (1976-02-01), Teramachi
patent: 3975064 (1976-08-01), Nilsson
patent: 4040679 (1977-08-01), Teramachi
patent: 4165195 (1979-08-01), Teramachi

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