Circulating type ball spline bearing

Details Circulating type ball spline bearing Circulating type ball spline bearing

1981-01-26

1983-03-01

Levy, Stuart S.

Cutlery

F16C 2906

Patent

active

043753051

ABSTRACT:
A circulating type ball spline bearing is characterized by: U-shaped channels formed axially on the inner periphery of the outer sleeve and each having a pair of concave raceways substantially of the same curvature as the ball bearings on and along opposite side walls thereof; non-load carrying ball grooves formed axially on the inner periphery of the outer sleeve at a predetermined distance from the U-shaped channels such that the balls in the non-load carrying grooves have a small contact angle close to the torque direction; U-shaped turn grooves formed on the inner periphery of the outer sleeve continuously to the concave raceways and non-load carrying ball grooves for turning the direction of circulating balls; U-shaped turn grooves formed in each one of the end lids fixedly fitted on the opposite ends of the outer sleeve for reversing the direction of load carrying or non-load carrying balls; and a number of slits formed in the retainer in projected wall portions in engagement with the U-shaped channels of the outer sleeve in face-to-face relation with the concave raceways, each one of the slits having a curved guide tongue at the opposite ends thereof to cover the open ends of the non-load carrying ball grooves; the raceways constituted by the outer sleeve, end lids and retainer being filled with the ball bearings.

REFERENCES:
patent: 3808839 (1974-05-01), Teramachi
patent: 3973809 (1976-08-01), Breteler et al.
patent: 4139242 (1979-02-01), Ernst et al.
patent: 4206951 (1980-06-01), Ernst et al.
patent: 4309061 (1982-01-01), Teramachi

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