Self-aligning ball bearings use for

Self-aligning ball bearing has two rows of balls. There is a common spherical raceway whose center of curvature accords with the bearing center. Even through the inner race, the steel balls and the holder incline relative to the outer race, the bearing can rotate. So the bearing is self-aligning, and will not be affected by shaft disalignment relative to the bearing box.

The double-row are useful for applications requiring high rotating speeds while exercising moderate radial, and moderate or low axial loading. It proposes an extensive range of self-aligning ball bearings, available with or without seals.

The self-aligning ball bearing is mainly subject to radial load. It can also be subject to a minimum of axial load, but it usually can not be subject to pure axial load.