Bearings – Linear bearing – Combined with seal or guard
Patent
1994-12-12
1997-04-29
Hannon, Thomas R.
Bearings
Linear bearing
Combined with seal or guard
384 45, F16C 3372, F16C 2906
Patent
active
056241950
ABSTRACT:
A light-weight miniature linear guide device provides: a guide rail including a first load ball rolling groove formed on an inner surface of the guide rail and extended longitudinally; a slider including a slider body adapted to be fitted in the guide rail, the slider body including a second load ball rolling groove formed on an outer surface of the slider body, and a circulator fitted in the slider body, the circulator having a non-load ball circulating path which is extended longitudinally; a plurality of balls fitted to roll in a space defined by the first and second load ball rolling grooves and the non-load ball circulating path of the circulator. Further, in the miniature linear guide device, the slider body includes a protrusion formed in a longitudinal end portion of the slider body, and a sealing member is secured to the protrusion to sealingly close a gap formed between the inner surface of the guide rail and the slider body. The miniature linear guide device can smoothly be operated even in a dusty atmosphere and prevented from scattering lubricant to lengthen the service life.
REFERENCES:
patent: 2951728 (1960-09-01), Drake
patent: 4854741 (1989-08-01), Mottate et al.
patent: 4892415 (1990-01-01), Katahira
patent: 5387038 (1995-02-01), Abe et al.
Abe Yasushi
Tsukada Toru
Hannon Thomas R.
NSK Ltd.
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