The Nachi 7226BMU Angular Contact Ball Bearing is designed for high-speed precision applications, featuring a bore diameter of 130 mm, an outside diameter of 230 mm, and a width of 40 mm. It has a brass cage and a contact angle of 40 degrees, allowing it to support radial, axial, or composite loads in one direction. This bearing is suitable for use in pairs to handle moment loads and is known for its higher precision, increased speed, and load-carrying capacity. It operates efficiently with low noise and is energy-efficient, making it ideal for precision spindle support and high-speed machining.