Seal for track-chain link having lubricant filled pockets

Details Seal for track-chain link having lubricant filled pockets Seal for track-chain link having lubricant filled pockets

1996-06-07

1997-11-11

Cuchlinski, Jr., William A.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277206R, 277215, F16J 1538, F16J 1548

Patent

active

056855486

ABSTRACT:
A track-chain link has a pin extending along and defining an axis and having a pair of ends and a radially outwardly directed cylindrical outer surface and a bushing coaxially surrounding the pin and having ends set axially inward of the pin ends and forming axially oppositely outwardly directed end surfaces. Structure on each of the pin ends defines an axially inwardly directed end surface axially confronting the respective bushing end surface and a radially inwardly directed inner surface radially confronting the pin outer surface and defining with the pin outer surface, the bushing end surface, and the structure end surface an annular compartment filled with a body of a liquid lubricant. Each compartment is provided with an elastomeric annular seal formed with an inner end surface forming a ridge bearing axially inward on the bushing end surface substantially in line contact, an outer side surface bearing radially outward on the structure inner surface, an inner side surface bearing radially inward on the pin outer surface, and an outer end surface bearing axially outward on the structure end surface.

REFERENCES:
patent: 2420929 (1947-05-01), Buffington et al.
patent: 2509151 (1950-05-01), Kasten
patent: 2884291 (1959-04-01), Whitten
patent: 3228705 (1966-01-01), Underwood
patent: 4438981 (1984-03-01), Harms
patent: 4461488 (1984-07-01), Harms
patent: 5127661 (1992-07-01), Franson et al.

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