The Nachi 7217BMU angular contact ball bearing features an 85 mm bore diameter, 150 mm outer diameter, and 28 mm width with a 40° contact angle. It has a machined brass cage and is flush ground for precision. This single-row bearing supports high-speed applications with a maximum speed of 3800 rpm with grease lubrication and up to 5000 rpm with oil. It offers a dynamic load capacity of 89,200 N and a static load capacity of 76,000 N, designed for radial, axial, and composite loads in one direction. The bearing is open type with C3 radial clearance, made in Japan for high precision and low noise operation.