Q: What are the advantages of self aligning ball bearing?

A: 

The self-aligning ball bearing can bear a large radial load, but also can bear a certain axial load. The outer ring raceway of this type of bearing is spherical, so it has self-aligning performance. When the shaft is bent or tilted so that the centerline of the inner ring and the centerline of the outer ring is not more than 1°～2.5°, the bearing can still work.