Linear motion rolling contact guide unit having an enhanced seal

Details Linear motion rolling contact guide unit having an enhanced seal Linear motion rolling contact guide unit having an enhanced seal

1992-06-19

1994-03-01

Le, Mark T.

Railways

Sledways

384 15, F16C 2906

Patent

active

052897796

ABSTRACT:
A linear motion rolling contact guide unit includes a rail elongated in shape, a slider slidably mounted on the rail and a plurality of rolling members interposed between the rail and the slider. The rail has a top surface, a pair of side surfaces and a bottom surface, and a guide groove is formed in each of the side surfaces with a tapered relief trench formed at the bottom of the guide groove. A side recess is also formed in each of the side surfaces. The slider is provided with an end seal having a first seal lip at each of front and rear ends and also with a bottom seal having a second seal lip. The first seal lip is in sliding contact with the top surface and also with the guide groove and the tapered relief trench and the second seal lip is in sliding contact with the side recess of the rail.

REFERENCES:
patent: 4886376 (1989-12-01), Osawa
patent: 4918846 (1990-04-01), Tsukada
patent: 4963038 (1990-10-01), Asano et al.
patent: 5080498 (1992-01-01), Tsukada
patent: 5087130 (1992-02-01), Tsukada
patent: 5088839 (1992-02-01), Tsukada
patent: 5092685 (1992-03-01), Tonogai

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