Spherical roller bearings have double-row rollers, the outer ring has a common spherical raceway, and the inner ring has two raceways that are inclined at an angle relative to the bearing axis. This ingenious structure makes it have self-aligning performance, so it is not easily affected by the angle of the shaft and the bearing box seat on the error or the shaft bending and is suitable for occasions where the installation part is likely to cause angle errors. In addition to being able to withstand radial loads, the bearing can also withstand bidirectional axial loads.
 
Spherical roller bearings have cylindrical and conical bores. The taper of the conical bore is 1:30 and 1:12. This conical bore bearing is equipped with an adapter sleeve or a withdrawal sleeve. The tapered inner hole self-aligning bearing can be easily and quickly assembled on the optical shaft or the stepper shaft.
 
Spherical roller bearings have a wide range of uses, mainly used in: papermaking machinery, reduction gears, railway vehicles, rolling mill gearboxes and bearing box, rolling mill rolls, crushers, vibrating screens, printing machinery, woodworking machinery, and other industries.
 
FV spherical roller bearings types as follow: