The Nachi 7220BMU angular contact ball bearing features a 100mm inner diameter, 180mm outer diameter, and 34mm width, designed with a 40° contact angle for combined radial and axial load capacity. It has a machined high-strength brass cage and is flush ground for precision. The bearing is open type with C3 internal clearance, made from JIS SUJ2 steel for both inner and outer rings, and rated for a maximum operating temperature of 120°C. It offers a dynamic load capacity of approximately 124,000 N and supports limiting speeds up to 3100 RPM with grease and 4200 RPM with oil lubrication, meeting ISO P0 (ABEC 1) precision standards. This single-row bearing is ideal for high-performance applications requiring durability and accuracy.