2220 KM SKF Self Aligning Bearing
Self aligning bearings have two rows of balls and a common concave sphered raceway in the outer ring. They are therefore insensitive to angular misalignments.
It is well suited to applications where considerable shaft deflections or misalignment are anticipated. In addition, the self-aligning ball bearing has the lowest friction of all rolling bearings which enables it to run cooler even at high speeds.