Cross-linear slide bearing having reduced thickness for use in X

Details Cross-linear slide bearing having reduced thickness for use in X Cross-linear slide bearing having reduced thickness for use in X

1984-09-21

1985-10-15

Levy, Stuart S.

Cutlery

F16C 2906

Patent

active

045470243

ABSTRACT:
A cross-linear slide bearing having a reduced thickness for use in an X-Y table includes a pair of first track rails which are disposed on a securing part such as to be in parallel to each other and are respectively provided in the opposing inner surfaces thereof with loaded ball rolling grooves extending longitudinally, and a pair of second track rails which are attached to a movable table such as to be in parallel to each other and to cross the first track rails at right angles and are provided in the opposing inner surfaces thereof with loaded ball rolling grooves extending longitudinally. The cross-linear slide bearing further includes four bearing units which are respectively disposed at intersections between the first and second track rails and are adapted to linearly move relative to the corresponding track rails. Each of the bearing units includes a flat bearing body having a pair of outer side surfaces which are adjacent to each other at 90 degrees. The bearing body further has first and second loaded ball rolling grooves which are respectively formed in the adjacent outer side surfaces such as to face the corresponding loaded ball rolling grooves on the first and second track rails and such as to be separate from each other vertically.

REFERENCES:
patent: 2681836 (1954-06-01), Jarund
patent: 3450447 (1969-06-01), Hacker
patent: 4118101 (1978-10-01), Teramachi
patent: 4205886 (1980-06-01), Teramachi

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