Patent ID: 6948784
Filing Date: 2005-09-27
Classification: B62D,Y10T

Abstract:
1. A track pin bushing for cooperating with a track pin in an endless track, the track pin bushing comprising: a tubular body formed of an iron-based alloy with a first end and a second end, an outer surface that is case-hardened in at least a section thereof, and an inner surface having an inner diameter, wherein the inner diameter defines the circumference of an axial bore extending from the first end to the second end and at least a portion of the outer surface has been removed to a depth sufficient to expose a non-carburized layer of the iron-based alloy; and a wear-resistant coating metallurgically bonded to said non-carburized layer, the wear-resistant coating comprising a fused, hard metal alloy comprising at least 60% iron, cobalt, nickel, or alloys thereof.