Steel-on-Bronze Series SPB

Steel on Bronze Spherical Plain Bearings - Metric SeriesA Steel on Bronze Liner Spherical Plain Bearing is one type of a maintenance-free SPB (others include steel on PTFE fabric and steel on PTFE composite). In this case, the outer ring is made of carbon steel with a bronze liner providing friction reduction. 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.

AST’s Steel on Bronze series is an economical maintenance-free spherical plain bearing ideal for lighter loads. For heavier loads where lubrication is not possible or desirable, please consider either the PTFE fabric or PTFE composite material series.

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.

Click here to go to our online catalog and product specifier Double Direction Thrust Spherical Plain Bearings including free CAD downloads.

Spherical Plain Bearings: Steel on Bronze Catalog & CAD Library

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

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