Bearings – Rotary bearing – Antifriction bearing
Patent
1994-05-20
1995-10-03
Hannon, Thomas R.
Bearings
Rotary bearing
Antifriction bearing
277 95, 384484, F16C 3378
Patent
active
054546478
ABSTRACT:
A package bearing includes outer and inner rings, provided with opposing raceways, and rolling elements located between the raceways. The inner ring has a flange which projects outwardly past one end of the outer ring and is provided with a radially directed sealing surface that is located opposite the end of the outer ring. Here the outer ring is fitted with a seal including a case that is pressed over the outer surface of the outer ring and an elastomeric seal element having lips that bear against the sealing surface on the flange of the inner ring to establish a dynamic fluid barrier. The case surrounds the seal element to protect it from stone impingement. The seal is large enough to pass over the nearby set of rolling elements in the bearing and thus does not interfere with assembly of the bearing.
REFERENCES:
patent: 3531168 (1970-09-01), Bainard
patent: 3936105 (1976-02-01), Asberg
patent: 3944305 (1976-03-01), Asberg
patent: 4043620 (1977-08-01), Otto
patent: 4118080 (1978-10-01), Fregler et al.
patent: 4217007 (1980-08-01), Filippa
patent: 4402558 (1983-09-01), Olschewski et al.
patent: 4647230 (1987-03-01), Friedrich et al.
patent: 5022659 (1991-06-01), Otto
patent: 5037214 (1991-08-01), Dougherty
Hannon Thomas R.
The Timken Company
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