Spherical Bearings

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 Spherical bearings are designed to carry combinations of vertical loads, horizontal loads, longitudinal and transversal movements and rotations and they are used in steel and concrete road and railway bridges. The bearing is composed by steel elements coupled with PTFE surface to allow movement and rotations. One side of the internal steel plate is machined as a spherical surface to allow tilting movement (rotation) whilst on the other side a flat sliding surface is obtained to allow displacements. Depending on whether the bearing is fixed, guided or a free sliding, spherical bearings accommodate vertical loads and corresponding horizontal forces, as well as movements in longitudinal or transversal directions.

 A type of Spherical bearing which along with vertical load bears and transmits horizontal force in one direction only and allows movement perpendicular to that direction and allows rotation about any axis in horizontal plane