Angular contact ball bearings
(Angular Contact Ball Bearings) both radial and axial loads. In high speed work. Larger the contact angle, the higher the axial load capacity. High-precision and high-speed bearings usually take the contact angle of 15 degrees. In the axial force, the contact angle will increase.

 
Single row angular contact ball bearings can withstand axial load in one direction, the radial load, will cause additional axial force. And the only limit shaft or housing in a direction of axial displacement. Angular contact ball bearing contact angle of 40 degrees, so you can bear large axial load. Angular contact ball bearing non-separation type design, inner and outer rings on both sides of the shoulder uneven. In order to improve the bearing load capacity, which would lower side of the shoulder machined, so that the ball bearings can be put more.
Double row angular contact ball bearings can withstand greater radial load mainly radial and axial joint load and moment load, limiting both the axis of the axial displacement. Main shaft and the housing for limiting the axial displacement member bidirectional
Double row angular contact ball bearings, the outer ring is limited between the tiltable, allowing the tilt angle depends on the bearing internal clearance, bearing size, internal design and acting on the bearing force and torque, while the maximum permissible tilt angle should guarantee bearing will not generate excessive additional stress. If the bearing inner and outer angle of inclination between will affect bearing life, also causing precision bearings running down, running noise increases. Double row angular contact ball bearings generally use nylon cage or solid brass cage. Double row angular contact ball bearing installation should pay attention, although bearings can withstand axial load, but if there is one side of the gap when the ball should be careful not to let the main axial load through the notched side of the gutter. Note that the bearing should be used without the ball gap to bear the main load side of the raceway.