Holding device of rectilinear motion rolling guide unit

Details Holding device of rectilinear motion rolling guide unit Holding device of rectilinear motion rolling guide unit

1988-07-07

1989-08-08

Hannon, Thomas R.

Bearings

Linear bearing

Recirculating

F16C 2906

Patent

active

048547417

ABSTRACT:
A holding device of a rectilinear motion rolling guide unit comprises: a long rail; first track grooves formed on both side wall surfaces in the longitudinal direction of the rail; a saddle-shaped slide unit formed with an inner concave portion and slidably mounted on the rail; second track grooves formed on the surface of the inner concave portion at the positions opposite to the first track grooves; and balls inserted between the first and second track grooves, thereby enabling the slide unit to be slidably moved on the rail therealong through the rolling of the balls. A holding portion to hold the balls is formed at the edge surface on the bottom surface side of the inner concave portion of each second track groove so as to be projected to the side of the rail by exceeding a perpendicular passing through the center of the ball. A holding plate is formed at the edge surface of the second track groove on the opening side of the inner concave portion in the direction opposite to the holding portion at the position inside of the bisector passing through the center of the ball and dividing the first and second track grooves. The holding plate is fixed to the edge surface of the second track groove so as to be projected to the side of the rail by exceeding the bisector dividing the first and second track grooves. The balls are held by the holding plate and holding portion.

REFERENCES:
patent: 4253709 (1981-03-01), Teramachi
patent: 4610488 (1986-09-01), Geka
patent: 4662763 (1987-05-01), Itoh

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