Self-aligning roller bearings have two symmetric trains of spherical rollers, outer ring has a share of the spherical groove, inner circle has two axis with a good self-aligning performance. When the shaft bend by stress or install in different hearts, the bearing can still be normal used.
This type of bearing has a well load capacity, in addition, it can bear radial load outside as well as can handle the two-way role axial load, so it has a good impact ability to resistance.
Generally speaking, Self-aligning roller bearings' work rotational speed is low.