Spherical bearing, also called spherical bridge bearing, is one type of bridge bearings with large rotation capacity. Similar with pot bearing, spherical bearing also can be divided into three types: fixed spherical bearing, guided spherical bearing and free sliding spherical bearing. With high strengthened steel body, spherical bearing is especially designed for high vertical, horizontal and lateral loads and where large rotational structural displacements need to be accommodated.

Spherical bearing types
Fixed spherical bearing only allows for rotations, any longitudinal or traversal movement is restrained. Guided spherical bearing with edge steel guide accommodates unidirectional movements. Free sliding spherical bearing can slid in all directions.

Working principle of spherical bearing
Spherical bearing is formed by top steel plate, stainless steel slide, PTFE slide, convex plate, curved PTFE and concave plate.