Angular contact ball bearings can simultaneously withstand radial and axial loads. They are capable of operating at high speeds. The larger the contact angle, the higher the axial load capacity. The contact angle is defined as the angle between the line connecting the contact points of the ball and the raceway in the radial plane and the perpendicular to the bearing axis. High-precision and high-speed bearings typically have a contact angle of 15 degrees. Under the influence of axial force, the contact angle will increase.
