Patent ID: 9623921
Date: 2017-04-18
CPC Classifications: B22D,B62D,C23C,Y10T

Claim:
1. A pin bushing joint of an endless track of a track-type machine, the pin bushing joint comprising: a bushing including an outer surface having an outer diameter and including an inner surface having an inner diameter; and a track pin including an outer surface, wherein a portion of the outer surface of the track pin substantially conforms to a portion of the inner surface of the bushing to form a wear surface, wherein one or both of the bushing and the track pin comprise non-carburized, hardened steel wherein the wear surface has a metallurgically bonded, wear-resistant coating, the wear-resistant coating comprising a fused metal alloy comprising at least 60% by weight iron, cobalt, nickel or alloys thereof, and wherein the wear-resistant coating has a Vickers hardness greater than 950 HV.