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Announcing the Launch of Our New AST Bearings Website

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AS AN ESSENTIAL, LIFE-SUSTAINING BUSINESS, AST BEARINGS WILL REMAIN OPEN AMIDST THE CORONAVIRUS PANDEMIC.

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Steel-on-PTFE Composite Material Series

A steel on PTFE composite material Spherical Plain Bearing is one type of a maintenance-free SPB (others include steel on PTFE fabric and steel on bronze). In this case, the outer ring is made of carbon steel radially split twice, held together by screws with a sliding surface of a PTFE composite material. The inner ring is made of hardened carbon chromium steel with the sliding surface treated with a chromium plating to further reduce friction.

As with other maintenance free spherical plain bearings, the Steel on Bronze series are used for applications where long bearing lives are required without maintenance (relubrication). They are also used when a steel on steel bearing is inadvisable such as when inadequate lubrication (or no lubrication) is prevalent.

Steel-on-PTFE Composite Material Series Bearings
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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!

AST’s steel on PTFE composite material series balances cost and load capacity and is ideal for medium loads where lubrication is not possible or desirable. For heavy loads, please consider either the PTFE fabric material series. For lighter loads, you should consider the Steel on Bronze SPB series.

  • GEC-HC Series – Steel on PTFE Composite Material, Compact profile, with outer lubrication groves (only)
  • GEC-HCS Series – Steel on PTFE Composite Material, Compact profile, with inner and outer lubrication groves
  • GEH-HC Series – Steel on PTFE Composite Material, Heavier profile, with outer lubrication groves (only)
  • GEH-HCS Series – Steel on PTFE Composite Material, Heavier profile, with inner and outer lubrication groves

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 Steel-on-PTFE Composite Material?

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

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