The Nachi 7312 BMU C3 angular contact ball bearing features a 60mm inner diameter, 130mm outer diameter, and 31mm width, designed for high radial and axial loads with a 40° contact angle. It has a single row of balls, an open enclosure, and a machined brass cage for durability and optimal lubrication. The bearing is flush ground with C3 internal clearance, ISO P0 (ABEC 1) precision class, and supports speeds up to 4600 rpm with grease or 6200 rpm with oil. Made from high-quality Japanese steel, it operates reliably up to 120°C, offering dynamic load capacity around 84,900 N and static load capacity near 60,300 N.