OEM‑compatible Needle Bearing (0516153800) for Simba M4C, Boomer M2D, Boomer T1D, Boomer M40S, Boomer XE3C, Boomer 291, Simba H1354, Boomer 281, Simba S7D, Boomer L2D, Boomer S2, Boomer 282, Boomer M2C, COP 2160, COP 2560, COP-SC25, COP-SC25X, RD-14U, and Boomer S1D drilling equipment. Made from hardened steel, this wear/bearing spare part reduces friction and supports rotating shafts in hydraulic breaker and rock drill systems, ensuring smooth and reliable operation.