Seal assembly for rolling bearing

Details Seal assembly for rolling bearing Seal assembly for rolling bearing

1988-11-17

1989-09-12

Footland, Lenard A.

Bearings

Rotary bearing

Antifriction bearing

277 95, F16C 3378

Patent

active

048654710

ABSTRACT:
A seal assembly for rolling bearing is comprised of: an inner race ring (3) of the rolling bearing which is formed in each of its external peripheral side faces with a stepped portion which consists of a first stepped section (4) having side and peripheral faces (41 and (42) thereof, and a second stepped section (5) located radially inwardly and axially outwardly of the first stepped section (4) and having side and peripheral faces (51 and 52) of itself; and, an outer race ring (1) of the rolling bearing which is provided on each of its side portions with an annular sealing member (7), each of said annular sealing member (7) has its outer peripheral portion fixed on the inner periphery of the outer race ring (1), and the inner peripheral portion of each annular sealing member (7) includes a seal lip (9) having an annular projection (10) which is formed on the internal side face of the inner peripheral portion of the seal lip (9), each of said annular projection (10) is held in contact with said side face (51) of the second stepped section (5), and the inner periphery (11) of each annular sealing member (7) faces toward the peripheral face (52) of the second stepped section (5) with a minute clearance therebetween.

REFERENCES:
patent: 4505484 (1985-03-01), Ohkuma et al.
patent: 4643594 (1987-02-01), Neder et al.
patent: 4733978 (1988-03-01), Colanzi et al.
patent: 4799808 (1989-01-01), Otto

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