The arc for abrasion resistance and corrosion-resistant improvement being the track/truck bush for the non edge condition track/truck of the track/truck bush and

摘要

(57) Abstract The track/truck bush (10) for the non edge condition track/truck of the caterpillar band type machine the 1st edge (20) and, includes the 2nd edge (30) and the cylindrical tube form which possesses lengthwise axis. The track/truck bush (10) furthermore the 1st edge bearing surface (22) which it adjoins to the 1st edge (20) and, includes the 2nd edge bearing surface (32) which it adjoins to the 2nd edge (30). At least the 1st edge bearing surface (22) and the circumferential groove (12,13) is formed to one inside the 2nd edge bearing surface (32). The circumferential groove (12,13) has had the depth which parallels to lengthwise axis. Abrasion resistance and the corrosion-resistant substance (14,15) the arc are welded in the welded joint in the circumferential groove (12,13) of the bush (10).