Spherical Plain Bearings Requiring Maintenance (Lubrication)

Steel-on-Steel Extended Inner Ring Series Spherical Plain BearingSpherical Plain Bearings requiring maintenance (steel-on-steel) have hardened sliding contact surfaces on both rings. The surfaces are typically treated with molybdenum disulphide and phosphate (this provides added wear resistance and wear-corrosion). However, Spherical Plain Bearings with this sliding contact surface combination require regular relubrication. The high strength of the sliding contact 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.

AST has nearly 500 different steel-on-steel spherical plain bearings products and they are sub-classified in the following categories. Click on each to learn more:

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 for our full line of Spherical Plain Bearings including free CAD downloads.

Full Line Spherical Plain Bearing 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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