The Thrust Bearing (OEM Part No. 3128280004) is a bearing replacement compatible with M2D, Boomer XE3C, Boomer L2D, Boomer M2C, Boomer MD, 235 bolting rigs, and Boltec MC models. Constructed from hardened steel, it is designed for use within drill feed or rotation systems at axial load support positions. The bearing supports axial forces, reduces friction, and ensures smooth rotational or feed movements while maintaining precise alignment of drill components. Its durable, wear-resistant design delivers long-lasting performance under demanding underground mining and bolting conditions, enhancing operational stability, mechanical integrity, and reliable drilling efficiency.