A spherical roller thrust bearing is a Spherical Roller Bearings rolling-element bearing of thrust type that permits rotation with low friction, and permits angular misalignment. The bearing is designed to take radial loads, and heavy axial loads in one direction.

A spherical plain bearing is a bearing that permits angular rotation about a central point in two orthogonal directions (usually within a specified angular limit based on the bearing geometry). Typically these bearings support NSK lu15 Bearing a rotating shaft in the bore of the inner ring that must move not only rotationally, but also at an angle.