Sealing system for a bearing

Details Sealing system for a bearing Sealing system for a bearing

1994-05-13

1996-01-30

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

384482, 384488, F16C 3378

Patent

active

054876117

ABSTRACT:
A sealing system for a roller bearing having an inner bearing race on the axle, bearing rollers around the inner race and an outer race around the bearing rollers. A sealing cap is spaced axially away from one axial end of the races. A first sealing ring is sealed to the outer race, and it includes an axial area that extends toward and that is spaced a short distance from the sealing cap defining a first sealing gap. A felt ring is disposed within the bore defined by the axially extending area of the first sealing ring. The felt ring is spaced axially out from the rollers and defines a first grease holding chamber between the rollers and the felt ring and a second grease holding chamber axially outward of the felt ring. A second sealing ring is located axially outward of the felt ring. It includes a sealing lip which seals at the felt ring. The second sealing ring may be mounted to the axle for rotating with the inner race or it may be mounted to the axially extending area of the first sealing ring for rotating with the outer race. A slinger disk is located axially outward of the sealing lip and extends radially outward in the bore within the axial area of the first sealing ring and extends a radial distance for defining a second sealing gap between the axial area of the first sealing ring and the slinger disk.

REFERENCES:
patent: 3656824 (1972-04-01), Ullberg
patent: 4383720 (1983-05-01), Ernst
patent: 4848776 (1989-07-01), Winckler
patent: 5121999 (1992-06-01), Johnson et al.

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