Seal for a joint or juncture – Seal between relatively movable parts – Relatively rotatable radially extending sealing face member
Patent
1983-03-16
1984-10-02
Ward, Robert S.
Seal for a joint or juncture
Seal between relatively movable parts
Relatively rotatable radially extending sealing face member
277174, 277177, 277178, F16J 1516, F16J 1554
Patent
active
044743793
ABSTRACT:
A radial shaft seal ring has a lip ring for sealing to a shaft for rotation therewith. A U-shaped recess extends around the lip ring. An extension portion of a reinforcing ring which delimits a space on one side thereof to be sealed contacts the U-shaped recess without pressure or connection for low wear relative rotation therein. Preferably, the shoulder of the lip ring defining the side of the U-shaped recess on the sealed-space side of the reinforcing ring has a greater outside diameter than that on the other side to centrifugally aid the seal. More preferably, the latter is done by angling the U-shaped channel to the sealed side to also accommodate axial vibration of the shaft and lip ring.
REFERENCES:
patent: 820009 (1906-05-01), Patten
patent: 2480116 (1949-08-01), Brummer
patent: 2643793 (1953-06-01), McIlroy et al.
patent: 2647002 (1953-07-01), Brummer
patent: 2719743 (1955-10-01), Brummer et al.
patent: 2932535 (1960-04-01), Peicku et al.
patent: 3600045 (1971-08-01), Inoue
patent: 3704893 (1972-12-01), Hill
patent: 3885460 (1975-05-01), Park
Firma Carl Freudenberg
Ward Robert S.
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