Track bushing having improved abrasion and galling resistance

Details Track bushing having improved abrasion and galling resistance Track bushing having improved abrasion and galling resistance

1999-01-13

2000-11-14

Stormer, Russell D.

Wheel substitutes for land vehicles

With means to remove or exclude foreign matter

305203, 384297, 384625, B62D 55205

Patent

active

061459410

ABSTRACT:
A track bushing for an endless track of a track-type vehicle includes a first end, a second end and a middle portion, an outer surface and an inner surface, a first sealing surface adjacent the first end and a second end sealing surface adjacent the second end, a first inner bearing surface adjacent the first end and a second inner bearing surface adjacent the second end, and an abrasion resistant coating deposited on at least one of (a) at least one of the first end sealing surface and the second end sealing surface, and (b) at least one of the first inner bearing surface and the second inner bearing surface. The coating is selected from the group consisting of chromium nitrides, chromium carbonitrides, and mixtures thereof. The track bushing exhibits much superior abrasion, corrosion, erosion and galling resistance.

REFERENCES:
patent: 4042282 (1977-08-01), Haslett et al.
patent: 4848934 (1989-07-01), Blakely et al.
patent: 5249868 (1993-10-01), Watts
patent: 5593234 (1997-01-01), Liston
patent: 5700094 (1997-12-01), Dam et al.

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