Main Menu


Request A Quote Contact Us

Your browser is out of date.

You are currently using Internet Explorer 7/8/9, which is not supported by our site. For the best experience, please use one of the latest browsers.


Thrust Loading - Steel, PTFE-Fabric, PTFE-Plastic Materials

Spherical plain thrust bearings have sliding contact surfaces in the shaft and housing washers which are arranged at an angle to the bearing axis. They are primarily intended for axial loads although they can accommodate combined loads to a certain extent. spherical plain thrust bearings are available with different sliding contact surface combinations, i.e. the sliding surfaces of shaft and housing washers are made from different materials. There are two main groups:

  • Steel-on-steel spherical plain thrust bearings
  • Maintenance-free spherical plain thrust bearings
Thrust loading spherical plain bearings

Bearings Catalog

Check out our online product catalog with more than 10,000 products with full specifications & 3D CAD Models available for download - all free of charge!

Steel-On-Steel Spherical Plain Thrust Bearings

The steel-on-steel spherical plain thrust bearings supplied by AST are made of carbon chromium steel and are hardened and phosphated, the shaft and housing washers sliding contact surface are treated with molybdenum disulphide, it has characteristics of wear-resistance and wear-corrosion. Bearings with this sliding contact surface combination require regular relubrication. To facilitate efficient lubrication, housing washer have an annular groove and a lubrication hole. The high wear resistance of the sliding surfaces makes these bearings especially suitable for bearing arrangements where heavy loads of alternating direction, shock loads or heavy static loads have to be accommodated.

Maintenance-Free Spherical Plain Thrust Bearings

The maintenance-free spherical plain thrust bearings supplied by AST have sliding contact surface combinations steel-on-PTFE fabric and steel-on-PTFE plastic, they have very low friction and can be operated without maintenance, any lubrication of the sliding contact surfaces will shorten bearing life. They are used for applications where long bearing lives are required without maintenance, or where operating conditions, such as inadequate lubrication or the absence of lubrication make the use of steel-on-steel bearing inadvisable. The maintenance-free bearings are primarily intended for applications where loads are heavy and have a constant direction.

AST's angular contact spherical plain bearings products are broken down into the following series:

  • GX-S Series – Steel-on-Steel, Thrust Bearing, metric dimensions
  • GX-T Series – Steel-on-PTFE-Fabric, Thrust Bearing, metric dimensions
  • GX-N Series – Steel-on-PTFE-Plastic, Thrust Bearing, metric dimensions

AST Bearings is proudly presenting our new certificates for both the NJ and CA locations: AST Bearings’ ISO 9001:2015 Certificates

To learn more about what the ISO 9001 standard is, the differences between the 2015 and 2008 versions, and how AST verifies customer satisfaction: Learn About AST Bearings’ certification to ISO 9001:2015

Need Assistance Selecting the Proper Thrust Loading - Steel, PTFE Fabric, PTFE Plastic?

If you need help in selecting the best products for your particular application, please remember that design engineering and application assistance are available from AST as part of our value-added services designed to make your job easier.

Value added services

Ask A Question

Ask us a question and one of our team members will respond as soon as possible.
Fields marked with * are required.