Angular contact bearing is also known as angular contact radial thrust ball bearing. This type of bearing is especially suitable for bearing radial and axial loads at the same time, and can also be used to bear pure axial loads, and allow a higher speed of operation. The size of the axial load borne by this type of bearing varies with the size of the contact Angle, and the greater the contact Angle, the greater the axial load borne by the bearing. The contact Angle is defined as the Angle between the line (or normal) of the contact point of the steel ball and raceway and the radial plane perpendicular to the bearing axis in the radial plane perpendicular to the bearing axis.

Single-Row Type :(78XX、79XX、70XX、72XX、73XX、74XX) Single-row angular contact bearings have contact angles, so they are suitable for bearing axial loads in one direction, or synthetic loads. Structurally, the axial component force is generated after bearing the radial load, so the two bearings are used in opposition, or more than two pairs of double use. Single-row angular contact ball bearings can be used to increase rigidity by preloading method, so they are suitable for machine tool spindles with high rotational accuracy.