Spherical Bearing 22317CAK/W33 22317CA/W33

A spherical 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 a rotating shaft in the [bore] of the inner ring that must move not only rotationally, but also at an angle.
Spherical bearings can be of a hydrostatic or mechanical construction. A spherical bearing by itself consists of an outer ring and an inner ring and a locking feature that makes the inner ring captive within the outer ring in the axial direction only. The outer surface of the inner ring and the inner surface of the outer ring are spherical (or more correctly, toroidal) and are collectively considered the raceway and they slide against each o or PTFE) based liner, or they incorporate a rolling element such as a race of ball-bearings, allowing lower friction.
Spherical bearings are used in car suspensions, engines, driveshafts, heavy machinery, sewing machines, and many other applications.