OEM‑compatible Ball Bearing (0501001901) for Simba M4C, Simba E70, Simba E7C, Simba M40S, Simba H1354, and Boomer‑282 drilling equipment. Made from hardened steel, this wear/bearing spare part reduces friction and supports rotating loads in hydraulic breaker and rock drill systems, ensuring smooth and reliable operation in mining and heavy-duty drilling equipment.