Angular Contact Ball Bearings are a type of rolling bearing that can simultaneously withstand radial and axial composite loads. Its core feature is the contact design between the raceway and the steel ball at a specific angle
Contact angle design
The contact angle (α) is the angle between the line connecting the contact point between the ball and the raceway in the radial plane and the perpendicular line of the bearing axis. Common angles are 15 °, 25 °, 30 °, or 40 °. The larger the contact angle, the stronger the axial bearing capacity
Single row type: can only withstand unidirectional axial loads and needs to be used in pairs (such as back-to-back DB, face-to-face DF, or series DT configuration) to balance additional axial forces
Double row type: Integrated double row raceway, capable of withstanding bidirectional axial loads, suitable for fixed end support
Four point contact type: Inner ring split design, contact angle of 35 °, capable of withstanding bidirectional axial loads
