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Formed Outer Race Series - Steel-on-Steel and Steel-on-PTFE Composite

Formed Outer Race Series SPB - Steel-on-Steel and Steel-on-PTFE Composite

When the performance of a one piece outer ring is desired, AST has options in both Steel-on-Steel and Steel-on-PTFE Composite liners. Due to their one-piece design, these spherical plain bearings have smaller bore dimensions and depending on the series chosen range from 4 mm to 50 mm bores. Unlike most other spherical plain bearings, these are not fractured and subsequently do not have to be held together with rings or screws providing them with excellent load handling capabilities for their size. With both the Steel-on-Steel and the Steel-on-PTFE composite series, the outer ring is made of carbon steel and pressed around the inner ring.

Formed Outer Race Series SPB 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!

Steel-on-Steel One-Piece Outer Ring Series

With this series, the outer ring made of carbon steel is pressed around the inner ring which is made of of carbon chromium steel, hardened, with a sliding surface treated with hard chromium plating. The outer ring has a groove and holes for lubrication, the inner ring is hard chrome plated. Since it is steel on steel, these spherical plain bearings must be properly lubricated with grease. AST supplies these in both inch and metric dimensions:

  • GEBJ_S Series – Steel-on-Steel, One-piece formed outer ring, Metric dimensions
  • GEFZ_S Series – Steel-on-Steel, One-piece formed outer ring, Inch dimensions

Steel-on-PTFE-Composite Liner One-Piece Outer Ring Series

With this series, the outer ring made of carbon steel is also pressed around the inner ring; however, the inner ring’s sliding surface is made of a PTFE composite material. The inner ring itself is made of carbon chromium steel, hardened, with its sliding surface treated with hard chromium plating. Since these spherical plain bearings have a PTFE composite liner and a hard chrome plated ball, lubrication is not recommended. Also, due to the PTFE composite liner, the bearing must be protected from dirt and contamination. AST Bearings has 75 different Formed Outer Race Spherical Plain Bearings to choose from including:

  • CE_C Series – Steel-on-PTFE-Composite, One-piece formed outer ring, metric dimensions
  • GEBJ_C Series – Steel-on-PTFE-Composite, One-piece formed outer ring, metric dimensions, Wide Series
  • GEG_C Series – Steel-on-PTFE-Composite, One-piece formed outer ring, metric dimensions, High Misalignment Series
  • GEFZ_C Series – Steel-on-PTFE-Composite, One-piece formed outer ring, Inch 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 Formed Outer Race Series - Steel-on-Steel and Steel-on-PTFE Composite?

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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