End face seal with sacrificial wear-in excluder

Details End face seal with sacrificial wear-in excluder End face seal with sacrificial wear-in excluder

1996-09-10

1998-08-18

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277 95, 277 85, 277165, F16J 1532

Patent

active

057949409

ABSTRACT:
An end face seal especially adapted for use in severe service environments such as for sealing track pins or track rollers of crawler type tractors. The seal includes a primary annular seal ring, having a radially extending flange with a portion for contacting a mating surface on a machine part in face sealing engagement and an axially extending flange portion, as well as a secondary annular sealing ring positioned in use about the axial flange portion. The secondary seal ring includes an abradable auxiliary excluder lip that contacts a portion of the machine part with the mating surface so as to initially exclude grit from the seal band area of contact between the seal ring and the machine part.

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Chicago Rawhide Manufacturing Company Brochure 5M982 No. 98342, "CR TRACKSTAR.TM. Grit Seals", pp. 1-4.

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