Technical information on spherical plain bearings

Spherical plain bearings, maintenance‑free

Features
 
Spherical plain bearings allow spatial adjustment movements and, depending on the bearing type, can support radial, combined or axial loads.

Radial spherical plain bearings
 
Maintenance-free radial spherical plain bearings comprise inner rings, outer rings and maintenance-free sliding layers. The inner rings have a cylindrical bore with a curved outer slideway.

The outer rings have a cylindrical outside surface and a concave inner slideway.

Between the inner and outer ring is an ELGOGLIDE sliding surface. The sliding surface in the series GE..-UK and GE..-FW is PTFE composite , while the sliding surface in series GE..-PW is PTFE film . For a description of the sliding surfaces, see link.

The bearings are available in open and sealed designs.

Area of application
 
Radial spherical plain bearings are preferably used to support radial forces. GE..-UK-2RS(-2TS), GE..-FW-2RS(-2TS), GE..-DW and GE..-DW-2RS2 are also suitable for alternating loads up to a contact pressure of p = 150 N/mm2. The bearings are used where particular requirements for operating life apply in conjunction with maintenance-free operation or where, for reasons of lubrication, bearings with metallic sliding contact surfaces are not suitable, for example under unilateral load.

Large radial spherical plain bearings GE..-DW and GE..-DW-2RS2 of d ≧ 320 mm are X-life bearings and are indicated as such in the dimension tables.

These bearings have even higher performance materials, lower coefficients of friction and lower running-in wear than comparable bearings.
 

Want to find out more about our spherical plain bearings, maintenance free?

You will find detailed information in our knowledge center:

Spherical plain bearings, requiring maintenance

Features
 
Spherical plain bearings allow spatial adjustment movements and, depending on the bearing type, can support radial, combined or axial loads

Radial spherical plain bearings
 
Radial spherical plain bearings requiring maintenance comprise inner rings and outer rings with a steel/steel or steel/bronze sliding contact surface. The inner rings have a cylindrical bore with a curved outer slideway. The outer rings have a cylindrical outside surface and a concave inner slideway.

As a sliding contact surface, the series GE..-DO, GE..-HO, GE..-FO, GE..-LO and GE..-ZO have inner and outer rings made from steel. Series GE..-PB has a steel inner ring and a bronze outer ring.

Bearings of series GE-ZO are available in inch sizes.

The bearings are available in open designs and in designs sealed on both sides.

Spherical plain bearings GE..-LO have bore dimensions to standard sizes and dimensions in accordance with DIN 24338 for standard hydraulic cylinders.
 
Area of application
 
Radial spherical plain bearings can support radial forces, transmit motion and loads with low moment levels, thus keeping bending stresses away from the construction elements. The bearings are particularly suitable for alternating loads with impact and shock type stresses and support axial loads in both directions.
 

Want to find out more about our spherical plain bearings, requiring maintenance?

You will find detailed information in our knowledge center: