A Fixed Spherical Bearing can bear the Vertical loads and transfers the Horizontal force in any direction. It also allows the rotation about any axis in the Horizontal plane.
A Free Float Spherical Bearing which can bears and transfers the Vertical Loads & allows movement in any direction in Horizontal plane & accommodates rotation along any axis in the Horizontal plane.
A Guided Spherical Bearing can bear the vertical loads and transfers the horizontal force in one direction only & allows movement perpendicular to that direction and as well as allowing rotation along any axis in the horizontal plane. Further the same bearing is classified as slide Guide Longitudinal & a Slide Guide Transverse bearing I as per the Load system.