MENU

Radial spherical plain bearings requiring maintenance

...are available in the following combinations of sliding surfaces:

  • steel on steel
  • steel on bronze
  • stainless steel on bronze

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.

Stainless steel on bronze:
The outer rings are composed of stainless steel (Material no.: 1.4418) with holes for mounting the inner rings which are composed of aluminium bronze (Material no.: 2.0975).

In order to guarantee an efficient function of the bearings they require regular maintenance and lubrication which can take place via lubrication holes and oil grooves. Steel on steel spherical plain bearings are especially suitable for bearing arrangements where heavy loads of alternating direction, shock loads.



Radial spherical plain bearings maintenance free

...are available in the following combinations of sliding surfaces:

  • steel on PTFE-composite material
  • hardchrome on PTFE-fabric
  • stainless steel on PTFE-fabric
  • stainless steel on composite material

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.

Hardchrome on PTFE-fabric:
The outer rings are composed of hardened bearing steel with firmly glued PTFE-fabric. The inner rings are composed of a hardchrome-plated sliding surface.

Stainless steel on PTFE-fabric:
The outer rings are composed of hardened stainless steel with firmly glued PTFE-fabric. The inner rings are composed of hardened stainless steel.

Maintenance free bearings with PTFE-composite material or PTFE-fabric are particularly suitable for one-sided loads and applications which can not be lubricated.

Composite spherical plain bearings:
The sliding surfaces of composite bearings are composed of stainless steel and a maintenance free composite material which is made up of synthetic fine fabric with evenly compound solid lubricants. The composite bearings with a stainless steel outer ring have been developed especially for the needs of the offshore industry and steel construction for hydraulic
engineering. These bearings are water and saltwater resistant.

Please note: These bearings must not be lubricated! Lubrication reduces the lifetime!

This is the picture of a radial spherical plain bearing.


This picture shows niro spherical plain bearings.


This picture shows composite bearings


WSW Wälzlager  |  Wolfgang Streich GmbH & Co  |  Ravensberger Bleiche 5  |  D-33649 Bielefeld (Ummeln)  |  +49 (0) 5 21 / 9 47 03 - 0  |  wsw@wsw-waelzlager.com
Choose your language    

BACK