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AST Publishes New Tech Papers on Spherical Plain Bearings

November 29, 2011 by Paul Wharton
CAD Drawing of a Steel-on-Steel Spherical Plain Bearing with Extended Inner Ring

CAD Drawing of a Steel-on-Steel Spherical Plain Bearing with Extended Inner Ring

Spherical Plain Bearings are also sometimes referred to as “Spherical Plane Bearings, Spherical Ball Bushing Bearings, or Ball Bushings. They are manufactured in a wide variety of materials and are designed to offer bearing solutions in almost any operating environment. Spherical Plain Bearings are suitable for heavy-duty, off-highway vehicles, agricultural equipment, and are used in equipment in heavy industries such as construction, mining, and logging along with the hydraulic equipment using in packaging, textiles, and robotics industries.

Spherical Plain Bearings – Characteristics

Spherical Plain Bearings have an inner ring with a sphere convex outside surface and an outer ring with a correspondingly sphere, but concave inside surface. Their design makes them particularly suitable for bearing arrangements where alignment movements between shaft and housing have to accommodate, or where oscillating or recurrent tilting movements must be permitted at relatively slow sliding speeds.

New Technical Papers Are Now Available on Spherical Plain Bearings

AST Bearings publishes 7 new technical papers on Spherical Plain Bearings

AST Bearings publishes 7 new technical papers on Spherical Plain Bearings

AST Bearings in support of educating engineers and designers has just published seven new technical papers which help describe Spherical Plain Bearing characteristics.  These papers are available now for reading and downloading:

How to Specify and Purchase Spherical Plain Bearings

AST is a premier spherical plain bearings supplier and supplies nearly 1,000 different spherical plain bearings products in standard industrial bore sizes from 0.5″ to 12″ inches, as well as metric sizes from as small as 4 to 300 mm. Custom sizes can also be ordered. If you already know which type of spherical plain bearing is right for your application, you can quickly navigate to it below for more information:

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.

Spherical Plain Bearings Online Catalog

Click here to go to our online catalog and product specifier for our full line of Spherical Plain Bearings including free 3D CAD model downloads. As a leading spherical plain bearings supplier, AST will provide you “value beyond the part.”


  1. Thanks for publishing these. I found them very helpful in better understanding the specific bearings I need for my hydraulic cylinder designs. They are used in harsh environments and do not have the ability of including a lubrication system in the design. I may be calling or email you however on some other questions I have. What’s the best way to contact AST directly?

    Comment by MinnesotaMike — December 2, 2011 @ 3:39 PM

  2. Dear “MinnesotaMike,”

    You’re welcome for the papers! And regarding the proper selection of the just the right bearing, we can definitely help with that. We have an engineering department in-house and application engineering is one of the value-added services that makes AST Bearings different from many other suppliers.

    Regarding the best way to contact us, if you are located in Minnesota (as your name implies), we have a Sales Engineer that lives right in Maple Grove, MN that can assist you. If you have a technical question including the need for application engineering, the best way to contact us is either using our Email Form on our Contact Us page (http://www.ASTBearings.com/Contact-Us.html) or simply calling our Engineering Department located at our headquarters in New Jersey toll free at (800) 526-1250. If you already know what you want to order, ou can submit your RFQ directly using this link: http://www.astbearings.com/request-a-quote.html. We look forward to hearing from you soon.

    Comment by Paul Wharton — December 2, 2011 @ 4:03 PM

  3. I learnt a lot from this article.

    Comment by Raul — December 28, 2011 @ 8:50 PM

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