Track pin assemblies and seal therefor

Details Track pin assemblies and seal therefor Track pin assemblies and seal therefor

1977-05-10

1978-06-13

Ward, Jr., Robert S.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277165, 277188R, 277215, 305 11, F16J 1538, F16J 1554

Patent

active

040945162

ABSTRACT:
An end face seal especially adapted for use in severe service environments such as for sealing track pins of crawler type tractors. The seal includes a primary annular seal, having a radially extending flange portion for contacting a mating surface in face sealing engagement and an axially extending flange portion, and a secondary annular sealing member positioned in use about the axial flange portion. The cross section of the secondary annular sealing member is generally parallelogram-shaped in an unstressed condition.

REFERENCES:
patent: 1369592 (1921-02-01), White
patent: 1532961 (1925-04-01), Travers
patent: 2825590 (1958-03-01), Sutherland
patent: 2871039 (1959-01-01), Payne
patent: 3218087 (1965-11-01), Hallesy
patent: 3241843 (1966-03-01), Hatch et al.
patent: 3241844 (1966-03-01), Morley
patent: 3437385 (1969-04-01), Deli
patent: 3829173 (1974-08-01), Stedman
patent: 3841718 (1974-10-01), Reinsma
patent: 3980309 (1976-09-01), Dechavanne

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