Two-piece seal for track chain joints

Details Two-piece seal for track chain joints Two-piece seal for track chain joints

1978-08-08

1980-06-24

Scherbel, David A.

Wheel substitutes for land vehicles

Combined or convertible

277 92, 277 95, F16J 1538

Patent

active

042092043

ABSTRACT:
A sealed joint assembly interconnecting links of crawler tractor track chain includes an annular sealing member made of relatively rigid abrasion resistant material formed to define contiguous axially and radially extending bands, the sealing member thus being generally right angular in cross section. The radially extending band includes a pair of surfaces which converge axially to form an annular edge which engages an end surface of a track bushing and is in fact biased theretowards by means of an annular compressive load member made of resilient relatively pliant material of generally rectangular cross section loaded predominantly in compression between the bottom of a counterbore of one of the links and the sealing member. A spacer ring is located radially inwardly of the axially extending band of the sealing member and augments the band in restraining radially inward expansion of the load member.

REFERENCES:
patent: 2699974 (1955-01-01), Deffenbaugh
patent: 4089531 (1978-05-01), Roley et al.
patent: 4094516 (1978-06-01), Morley et al.
patent: 4126359 (1978-11-01), Holze

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