Self-aligning roller bearing is a bearing can bear great load. This kind of bearing has two rows of rollers, periphery has a common spherical raceway, inner two raceway bearing axis tilted relative to a certain angle, the bearing can automatically adjust the heart. Concentric bias so can compensate the installation position in shaft bending deformation and bearing formation. This type of bearing except difficult it had to bear radial load, but also can bear axial load bidirectional, has good anti impact force.

Self-aligning roller bearing is divided into symmetrical spherical roller and asymmetric spherical roller two kinds of different structure according to the shape of the cross section of the roller. Asymmetric self-aligning roller belongs to the early products, symmetric shape self-aligning roller bearings through the comprehensive improvement of the internal structure and parameter optimization design of bearing load, able to withstand greater compared with self-aligning roller bearing early production, operating temperature of the bearing is low, can be adapted to high speed requirements. According to the inner circumference of a non retaining side and the cage for different, can be divided into C type and CA type two kinds, characteristics of CA type bearing as the inner circle on both sides of the flange and the used car business holder.

In order to improve the lubrication of bearings, self-aligning roller bearings can be provided to customers with the peripheral annular oil groove and three oil hole.

The bearing can lock nuts bearing mounted directly on the tapered shaft neck, or with the help of an adapter sleeve bearings are mounted in a cylindrical shaft neck.