Ball bearing slide unit for linear motion

Details Ball bearing slide unit for linear motion Ball bearing slide unit for linear motion

1981-08-20

1984-01-17

Jillions, John M.

Cutlery

308 3R, F16C 2906

Patent

active

044261195

ABSTRACT:
A ball bearing for linear motion which is mounted on a track rail having track surfaces. The slide unit includes a body which is provided with track surfaces, ball return holes, and direction changing paths, and thereby, forming circulating paths where groups of balls endlessly circulate supporting a load and rolling between both track surfaces. The slide unit is characterized in that the external contours of track end retainers which form part of the direction changing paths which connect the track surfaces to the return holes and the external contours of side plates which form the direction changing path together with the track end retainers are made so as to be large circular shape in general, and that the portion providing the direction changing paths which connect to the return holes project outwardly in an upwardly inclined direction forming circular ear like shapes, thus providing a bear head like contour. A mounting hole for fastening an attached body fixedly on the slide unit to formed with a female thread portion located at the upper part of the hole and formed with a cylindrical guide surface located at the lower part of the hole with sufficient length to accurately and securely fit, guide and hold a mounting bolt from the bottom. The top surface of the slide unit is finished for mounting and the bottom surface around the mounting hole is counterbored to be a regulating surface for mounting.

REFERENCES:
patent: 3311426 (1967-03-01), Binns
patent: 3552806 (1971-01-01), Weasler et al.
patent: 3940186 (1976-02-01), Nilsson
patent: 4040679 (1977-08-01), Teramachi
patent: 4253709 (1981-03-01), Teramachi
patent: 4273389 (1981-06-01), Takai

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