Radial spherical plain bearings – it’s a friction type bearings, which inner and outer rings have spherical form sliding, surface. Radial spherical plain bearings are designed to transfer radial, axial and combined loads in linkage of fast moving and fixed equipment, and in machine linkage. Radial spherical plain bearings are working by principal of one ring movement in regard to another ring. Friction speed is conditionally slow.
Radial spherical plain bearings are available in the following combinations of sliding surfaces:
• Steel on steel:
The inner and outer rings are composed of hardened and phosphated bearing steel and the spherical sliding
surfaces are treated with a running-in lubricant.
• Steel on bronze:
The inner rings are composed of hardened bearing steel and the outer rings of bronze.
• Steel on PTFE-composite material:
The inner rings are composed of hardened bearing steel with a hardchrome-plated sliding surface. The outer rings are composed of steel with PTFE-composite material which is pressed around the inner rings.
Please note: These bearings must not be lubricated!