Bearings – Linear bearing – Recirculating
Patent
1990-08-23
1991-05-07
Hannon, Thomas R.
Bearings
Linear bearing
Recirculating
744248R, 384 54, F16C 2906, F16H 2622
Patent
active
050131648
ABSTRACT:
A linear guide bearing apparatus includes a guide rail having an H-shaped cross section and an axially extending through bore. A slider having an I-shaped cross section is fitted into the through bore for movement in the axial direction. The slider is formed of a table member, a leg member, and a distance member formed of an elastic body and sandwiched between the table member and the leg member. The table member, the distance mebmer, and the leg member are integrally coupled by a bolt penetrating these members vertically. A clamping spring member is threadedly engaged with a low end of the bolt so that the elastic distance member is compressed vertically and the table member and the leg member are elastically pressed against the guide rail by the clamping spring member through the elastic distance member. As a result, balls inserted between the ball rolling grooves of the guide rail and the slider are preloaded at a constant pressure.
REFERENCES:
patent: 3940186 (1976-02-01), Nilsson
patent: 4253709 (1981-03-01), Teramachi
patent: 4426119 (1984-01-01), Mottate
patent: 4527840 (1985-07-01), Mugglestone et al.
patent: 4630872 (1986-12-01), Teramachi
patent: 4929096 (1990-05-01), Osawa
patent: 4932279 (1990-06-01), Kasuga
Hannon Thomas R.
Nippon Seiko Kabushiki Kaisha
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