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. Spherical bearings are producing according to latest IRC specifications also to the clients request they can produced according other codes as well.