Bearings – Linear bearing – Combined with seal or guard
Patent
1991-06-12
1992-01-14
Hannon, Thomas R.
Bearings
Linear bearing
Combined with seal or guard
384 45, F16C 2906, F16C 3372
Patent
active
050804987
ABSTRACT:
A dust seal device used with a linear guide apparatus includes a pair of side seals respectively fixed to front and rear end surface of end caps and a pair of under seals respectively removably attached to lower surfaces of side walls of a slider. Each side seal has an inverted U-shape with a pair of bent pieces formed by bending lower portions of both leg portions of each side seal inwardly at right angles in an axial direction so as to cover the lower end surfaces of one end cap. Each side seal also has projections formed by respectively bending lateral side portions of the pair of bent pieces further upwardly to constitute positioning and under seal fall-off preventing projections. Each under seal is of a rectangular strip shape having a length substantially equal to that of the slider, including the thickness of the end caps. Each under seal is attached to the slider by inserting each under seal between the bent piece and the lower end surface of the end cap. The lateral movement of the under seal is prevented by the positioning and under seal fall-off preventing projections.
REFERENCES:
patent: 2951728 (1960-09-01), Drake
patent: 4273389 (1981-06-01), Takai
patent: 4850720 (1989-07-01), Osawa
patent: 4921358 (1990-05-01), Kasuga et al.
Hannon Thomas R.
Nippon Seiko Kabushiki Kaisha
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