Self aligning bearings have two rows of balls and the raceway in the outer ring is spherical. This makes the bearings self aligning. The main benefits are that these self-aligning ball bearings will generate less friction than any other type of rolling bearing, and this enables them to run cooler even at high speeds.
We have them available with either a cylindrical or tapered bore.
Bearings with a tapered bore will need to be mounted directly on a shaft or on an adapter or withdrawal sleeve. These are available from Best Bearings Online also. Our preferred brand of Self Aligning bearings is from FAG.