The inner and outer rings of angular contact ball bearings have raceways, and the inner and outer rings can undergo relative displacement along the axial direction of the bearing. This type of bearing is particularly suitable for bearing composite loads, which are loads that act radially and axially simultaneously. The axial load bearing capacity of angular contact ball bearings increases with the increase of contact angle α. The contact angle 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.
The models of angular contact ball bearings are divided into: angular contact ball bearings with α=15 ° (70000C type); Angular contact ball bearing with α=25 ° (70000AC type); Angular contact ball bearing with α=40 ° (70000B type); Back to back paired double contact ball bearings [70000C (AC, B)/DB type]; Face to face paired double angular contact ball bearings [70000C (AC, B)/DF type]; Series paired double angular contact ball bearings [70000C (AC, B)/DT type]; Double row angular contact ball bearings with ball installation gaps (Type 00000); Double row angular contact ball bearings (00000 A type) without ball installation gaps; Double row angular contact ball bearing (00000 A-Z type) with no ball gap and dust cover on one side; Double row angular contact ball bearings (00000 A-2Z type) with no ball gap and dust covers on both sides; Double row angular contact ball bearing (00000 ARS type) with no ball gap and a sealing ring on one side; Double row angular contact ball bearings (00000 A-2RS type) with no ball gap and sealing rings on both sides; There are 13 types of four point angular contact ball bearings (QJ0000 type).