Patent ID: 6145941
Filing Date: 2000-11-14
Classification: B62D,F16C

Abstract:
A track bushing for an endless track of a track-type vehicle, comprising:a first end, a second end and a middle portion; an outer surface and an inner surface;a first end sealing surface adjacent said first end and a second end sealing surface adjacent said second end;a first inner bearing surface adjacent said first end and a second inner bearing surface adjacent said second end; andan abrasion resistant coating deposited on (a) at least one of said first end sealing surface and said second end sealing surface, and (b) at least one of said first inner bearing surface and said second inner bearing surface, said coating being selected from the group consisting of chromium nitrides, chromium carbonitrides, and mixtures thereof,wherein said middle portion does not have said abrasion resistant coating deposited thereon.