A bearing consisting of a metal piston supported by a disc of unreinforced elastomer that is confined within a metal cylinder for allowing rotational movement about any axis in horizontal plane and to bear and transmit vertical load. Pot bearings may be provided with sliding assembly comprising of stainless steel plate attached to metal backing plate sliding in horizontal plane over sliding material confined in recess(s) on the piston which shall be termed as Sliding/Guided Pot bearings. Depending on the desired degree of freedom Pot bearings may be of three types as mention:
The main types of Pot-Cum-PTFE bearing are mentioned below:
A type of Pot bearing which along with vertical load, bears and transmits horizontal force in any direction and allows rotation about any axis in horizontal plane without permitting any movement in horizontal plane.
A type of Pot bearing which bears and transmits vertical load and allows movement in any direction in the horizontal plane and accommodates rotation about any axis in horizontal plane.
A type of Pot bearing which transmits horizontal force in one direction only and allows movement perpendicular to that direction and allows rotation about any axis in horizontal plane. This bearing are in two Sub-types i.e. Longitudinal Sliding/Guided Bearing & Transverse Sliding/Guided Bearing based on movement.