Bearings – Rotary bearing – Antifriction bearing
Patent
1989-11-15
1990-08-14
Footland, Lenard A.
Bearings
Rotary bearing
Antifriction bearing
384482, 384485, 384571, 277 95, F16C 3378
Patent
active
049482718
ABSTRACT:
A tapered roller bearing having an inner ring and an outer ring, each respectively having a tapered race, a plurality of tapered rollers, a cage which retains the tapered rollers at an even interval in the circumferential direction and first and second seals. The first seal has a lip and main element, the main element having mounted on the small diameter end portion of the inner ring, and the lip being forced in the axial outward direction of the bearing against the outer ring, and separated from the outer ring when forced in the inward axial direction. The second seak has a lip and main element, the main element mounted on the large diameter end portion of the inner ring, and the lip forced in the axial inward direction of the bearing against the outer ring, and separated from the outer ring when forced in the axial outward direction. The lips of the first seal and second seal are moved and separated from the outer ring, thus creating a clearance, by a force acting in the same direction. Lubrication is accomplished by supplying lubricating oil to this bearing in the one direction, so that only the lubricating oil passes through the bearing and penetration of foreign matter contained in the lubricating oil to the bearing is prevented by the seals.
REFERENCES:
patent: 2059181 (1936-10-01), Wilson
patent: 2945730 (1960-07-01), Murray et al.
patent: 3006701 (1961-10-01), Curtis
patent: 3858950 (1975-01-01), Otto
patent: 4605318 (1986-08-01), Kaiser
Matsumoto Masaaki
Nunotani Masao
Footland Lenard A.
Koyo Seiko Co. Ltd.
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