Self-lapping seal for track chain

Details Self-lapping seal for track chain Self-lapping seal for track chain

1979-06-15

1981-06-23

Scherbel, David A.

Wheel substitutes for land vehicles

Combined or convertible

277 962, B62D 5520

Patent

active

042746825

ABSTRACT:
A track structure (10) having an annular seal (24) defined by a C-shaped cross section for movably sealing the end (18) of the track pin (17) to an outer bushing surface (20). A shallow portion (32) of the seal is impregnated with lapping compound to lap the confronting sealing surface (20) of the bushing so as to provide a positive seal therebetween. The improved seal eliminates the need for lapping the sealing surfaces of the track structure prior to assembly. The portion (32) of the sealing surface of the seal impregnated with lapping compound provides the desired lapping of the confronting track structure surface as the result of relative movement between the seal and that surface which may be effected during a break-in period as desired.

REFERENCES:
patent: 3601413 (1971-08-01), Darnell
patent: 3841718 (1974-10-01), Reinsma
patent: 3918925 (1975-11-01), McComas
patent: 4089531 (1978-05-01), Roley et al.

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