The Nachi 7218BMU angular contact ball bearing features a 90 mm bore, 160 mm outer diameter, and 30 mm width with a 40° contact angle. It has a machined brass cage and is flush ground for precision. This single-row bearing supports radial, axial, and combined loads in one direction, with dynamic and static load capacities of 102,000 N and 88,000 N respectively. It operates at maximum speeds of 3500 rpm with grease and 4700 rpm with oil lubrication. The bearing is open type, made from JIS SUJ2 steel, with C3 internal clearance and ISO P0 precision class, suitable for high-speed, high-precision applications. Made in Japan.