Ball retainer with an inner seal for a linear guide apparatus

Details Ball retainer with an inner seal for a linear guide apparatus Ball retainer with an inner seal for a linear guide apparatus

1995-04-27

1996-02-20

Hannon, Thomas R.

Bearings

Linear bearing

Combined with seal or guard

384 45, F16C 2906, F16C 3372

Patent

active

054924120

ABSTRACT:
A linear guide apparatus provides a guide rail, a slider, balls, and a ball retainer having a core bar, ball holding portions and inner seal portions. The core bar, which is formed in a rectangle shape, has stopper portions at longitudinal ends and is coated with a rubber or synthetic resin member. The stopper portions project in an axial direction of the linear guide apparatus. The ball holding portions are arranged along both side edges of the ball retainer. The inner seal portions contact with at least an upper surface of a guide rail out of the upper surface of the guide rail and an inner surface of the slider confronting the upper surface of the guide rail. The ball retainer serves both functions of holding balls and sealing the balls.

REFERENCES:
patent: 4918846 (1990-04-01), Tsukada
patent: 4929095 (1990-05-01), Osawa
patent: 5011300 (1991-04-01), Teramachi
patent: 5137371 (1992-08-01), Osawa
patent: 5275492 (1994-01-01), Shirai

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