SRB has a double-column roller, and there is a common sphere roller in the outer ring. There are 2 rollers in the inner ring and the relative bearings are tilted into an angle. This ingenious structure makes it automatically adjustable, so it is not easy to be affected by the angle of the shaft and the bearing box on errors or axis bending. It is suitable for the installation error or axis deflection and the angle error causes. This bearing can withstand axial load that can withstand a radial load and can also bear a bidirectional effect.

The main applicable maintenance rack: stamping steel plate enhanced holding cage (E). Pouring steel plate type holding rack (CC), glass fiber enhanced polyamide 66 holder (TVPB), and machine processing brass two-piece holder (MB). Machine processing brass overall holding rack (CA), stamping steel plate holder (JPA) of vibration occasions. Holders (EMA) by vibration occasion. In the same structure, the code on the bearing may be different.

SRB can be used for paper-making machinery, deceleration device, railway vehicle axis, rolling machine gear box bearing seat, steel rolling machine roller, crushing machine, vibration screen, printing machinery, woodworking machinery, various industrial reduction machines.