Bearing assemblies with seals

Details Bearing assemblies with seals Bearing assemblies with seals

2004-11-10

2008-11-18

Hannon, Thomas R (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

C384S477000

Reexamination Certificate

active

07452134

ABSTRACT:
A bearing assembly (A-H) enables one member (4) to rotate relative to another member (2) about an axis (X). It includes a bearing (6) having an inner race (54) on one of the members, an outer race (74, 126, 164, 250) in the other member, and rolling elements (58) between raceways on the two races. A seal (10, 180, 210, 256) excludes contaminants from the interior of the bearing, and it includes a wear ring (92, 184, 214, 276) carried by an extension (80, 128, 144, 168, 252) on the outer race beyond the raceway of that race, a contacting wear ring (90, 182, 212, 278) carried by the member on which the inner race is located or else by a can (110, 230, 254) that is fitted to the inner race. The seal also includes backing elements (94, 96, 192, 194, 216, 218, 294) for supporting the wear rings on that which carries them, and in most instances the backing elements exert a biasing force on the wear rings to maintain them in contact, so that they establish a dynamic fluid barrier. The backing elements may include O-rings (94,96), polymer connecting segments (200) or springs (292) and a membrane (294).

REFERENCES:
patent: 2275307 (1942-03-01), Murden
patent: 2647025 (1953-07-01), Deffenbaugh
patent: 3201134 (1965-08-01), Hayatian
patent: 4167297 (1979-09-01), Cheesman et al.
patent: 4351533 (1982-09-01), Moore
patent: 4640559 (1987-02-01), Crotti
patent: 4687350 (1987-08-01), Vogt et al.
patent: 4881829 (1989-11-01), Koelsch
patent: 6086069 (2000-07-01), Bedford et al.
patent: 0591123 (1994-04-01), None
patent: 0591123 (1995-04-01), None
patent: 2600741 (1987-12-01), None
patent: 0677673 (1995-10-01), None
Official Action from the European Patent Office regarding European Application No. 04811099.3, which is the counterpart of U.S. Appl. No. 10/577,195 and contains similar claims—mailing date: Jun. 17, 2008.

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