Spherical roller bearings have two rows of rollers that are primarily subjected to radial loads and can also withstand axial loads 

in either direction. High radial load capacity, especially suitable for heavy or vibration loads, but not for pure axial loads. The 

outer ring raceway of this type of bearing is spherical, so its self-aligning performance is good, it can compensate the coaxiality 

error. There are two rows of symmetrical spherical rollers, the outer ring has a common spherical raceway, and the inner ring 

has two The bearing axis is inclined at an angle of the raceway, and has good self-aligning performance. When the shaft is bent 

or installed with different cores, the bearing can still be used normally. The centering property varies with the bearing size series.

Generally, the allowable centering angle is 1~2.5 degrees, this type of bearing has a large load capacity. In addition to being 

able to withstand radial load, the bearing can withstand the axial load of two-way action and has good impact resistance. 

Generally speaking, spherical roller bearings are allowed. The working speed is lower.