Bearings – Linear bearing – Recirculating
Patent
1990-04-30
1991-01-29
Footland, Lenard A.
Bearings
Linear bearing
Recirculating
384 45, F16C 2906
Patent
active
049882155
ABSTRACT:
A guide rail of a linear guide apparatus has a pair of roller raceway surfaces extending axially and formed in boundary edges between an upper surface and both lateral side surfaces by chamfering the boundary edges at a slant angle of 45.degree.. A slider main body having an U-shaped cross section and straddling the guide rail movably is provided with a pair of roller rolling grooves formed in both inner corners respectively corresponding to the roller raceway surfaces of the guide rail. The rollers inserted in the roller rolling grooves have a chamfered surface inclined at an angle of 45.degree. formed by chamfering an inner or upward boundary edge between an inner end face and an outer peripheral surface. A roller retainer having a rectangular frame shape is disposed in a space between an inner surface of the slider main body and the upper surface of the guide rail by being supported at axial opposite ends thereof by end caps which are secured to opposite axial ends of the slider main body. Both longitudinal legs of the frame-shaped roller retainer have roller retaining surfaces formed in both outer side surfaces of the longitudinal legs.
REFERENCES:
patent: 4886376 (1989-12-01), Osawa
patent: 4902143 (1990-02-01), Morita
Footland Lenard A.
Nippon Seiko Kabushiki Kaisha
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