Reinforced track pin assemblies and seals therefor

Details Reinforced track pin assemblies and seals therefor Reinforced track pin assemblies and seals therefor

1979-11-05

1984-07-03

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

305 14, F16J 1538, F16J 1534

Patent

active

044575211

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 shaped so as to accommodate both axial and radial compressive loads, and is preferably generally parallelogram-shaped in an unstressed condition. The seal also includes an annular reinforcing member of generally L-shaped cross section adapted to distribute the axial load to the seal face and to prevent radially outward deformation of the outermost portion of the radial flange of the primary seal ring.

REFERENCES:
patent: 2463695 (1949-03-01), Jensen
patent: 3547452 (1970-12-01), Hirata
patent: 4094516 (1978-06-01), Morley
patent: 4195852 (1980-04-01), Roley

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