TRACK BUSHING HAVING ARC WELDED END TREATMENT FOR IMPROVED ABRASION AND CORROSION RESISTANCE, AND A PROCESS FOR MAKING THE SAME

摘要

A track bushing (10) for an endless track of a track-type machine includes a cylindrical tubular shape having a first end (20) and a second end (30) and a longitudinal axis. The track bushing (10) further includes a first end bearing surface (22) that is adjacent to the first end (20) and a second end bearing surface (32) that is adjacent to the second end (30). A circumferential groove (12, 13) is formed in at least one of the first end bearing surface (22) and the second end bearing surface (32). The circumferential groove (12, 13) has a depth along the longitudinal axis. An abrasion and corrosion resistant material (14, 15) is arc welded within the circumferential groove (12, 13) to the bushing (10) at a weld joint.