The 7309B Angular Contact Ball Bearing is a precision component designed for high-performance applications. It features an inner diameter of 45 mm, an outer diameter of 100 mm, and a width of 25 mm. With a contact angle of 40 degrees, this bearing is ideal for handling significant axial loads alongside radial loads. It is commonly used in machine tools, gearboxes, and other high-speed applications. The bearing is available with various cage materials, such as brass or phenolic, which enhance its durability and speed capabilities. It is pre-lubricated with light oil for smooth operation.