Spherical roller bearings
Spherical roller bearings have double row rollers, a common spherical raceway on the outer ring, 2 raceways on the inner ring and are inclined at an angle to the bearing axis. This ingenious design makes it self-aligning, and therefore is not susceptible to errors in the angle of the shaft and bearing housing or to the bending of the shaft. It is suitable for installation errors or angular errors caused by shaft deflection. In addition to the radial load, the bearing can also withstand the axial load in both directions.