Bearing seal for endless tracks

Details Bearing seal for endless tracks Bearing seal for endless tracks

1976-06-01

1977-11-15

Smith, Robert I.

Seal for a joint or juncture

Seal between relatively movable parts

Relatively rotatable radially extending sealing face member

277206A, F16J 1534

Patent

active

040583228

ABSTRACT:
A seal for endless tracks formed of alternating first and second link sides articulated to one another at joints; each joint including a bushing affixed to the first link side and a pin surrounded by the bushing and affixed to the second link side and an annular recess provided in the second link side and surrounding the pin. The seal is formed by a resilient sealing ring received in the recess and surrounding the pin. The sealing ring has a first radial side and a second radial side and is axially compressed by a radial edge face of the bushing and a radial base of the recess. As a result, the first radial side is in engagement with the radial edge face of the bushing and the second radial side is in engagement with the radial base of the recess. The first radial side is concave and defines with the radial edge face of the bushing a sealed chamber. The outer peripheral face of the sealing ring sealingly engages the axial inner wall of the recess.

REFERENCES:
patent: 3183008 (1965-05-01), Yost
patent: 3390922 (1968-07-01), Reinsma
patent: 3560059 (1971-02-01), Miyake

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