The Bushing (OEM Part No. 3128314167) is a spare part compatible with Boomer 281 and boomer-282 underground drilling rigs. Manufactured from durable alloy steel, it is categorized as a wear part for the drilling rig swing joint assembly at the articulation bushing position. It eliminates direct metal friction between rotating joint pins and frames under heavy underground loads, effectively reducing component wear and joint jamming risks. Its wear-resistant alloy steel material and OEM matched size guarantee flexible swing movement and longer service cycles of rig linkage structures.