Linear slide roller bearing unit

Details Linear slide roller bearing unit Linear slide roller bearing unit

1984-05-24

1985-12-17

Levy, Stuart S.

Cutlery

F16C 2906

Patent

active

045589100

ABSTRACT:
A linear slide roller bearing unit for use in, for example, a machining center has a track shaft extending in the longitudinal direction of the linear slide roller bearing unit. The linear slide roller bearing unit further has a movable table constituted by a long block member disposed so as to straddle the track shaft, the movable table having longitudinal V-shaped grooves respectively formed in the opposing inner surfaces of skirt portions thereof. A pair of right and left bearing bodies are each constituted by a long block member of substantially square cross-section which is screwed to the corresponding V-shaped groove in the movable table, each bearing body having a guide ridge projecting from the center of each inner inclined surface portion of the block member. Barrel-shaped rollers are adapted to be recirculated along the loaded roller rolling surfaces and non-loaded roller surfaces of the bearing bodies and to come in contact with the loaded roller rolling surfaces on the track shaft when rolling along the loaded roller rolling surfaces on the bearing bodies. The rollers in the state of serving as loaded rollers are brought into contact with the loaded roller rolling surfaces on the track shaft at a contact angle of about 45.degree. with respect to the horizontal axis passing through both the centers of the right and left ridges of the track shaft. The barrel-shaped rollers may be replaced by cylindrical rollers.

REFERENCES:
patent: 3008774 (1981-11-01), Morris et al.
patent: 4302059 (1981-11-01), Teramachi

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