The Nachi 7314BMU angular contact ball bearing features a 70mm bore, 150mm outer diameter, and 35mm width, designed for high precision with an ABEC 1 (ISO P0) rating. It has a single row of balls with a 40° contact angle, supporting dynamic loads up to 118,000 N. The bearing uses a brass cage for durability and operates with an internal clearance of C3, allowing for thermal expansion. It is open type with flush ground surfaces for smooth mounting and runs at limiting speeds of 3600 RPM (grease) and 4800 RPM (oil). The bearing is made from JIS SUJ2 steel and withstands temperatures up to 120°C. This combination ensures reliable performance in demanding mechanical applications.