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Ball Bearings

R Series Ball Bearings

The R-Series ball bearings, named for their numerical model numbers, are also known as our Precision Inch Series ball bearings. More specifically R-Series bearings are radial ball bearings with inch dimensions available from ?" through 1½ inch bore sizes.

The design uses Conrad construction which is a type of non-separable deep-groove ball bearing, with symmetrical inner and outer raceways. Most notably, this constuction allows an axial thrust load in addition to radial loads. The R-Series is available in standard and flanged configurations and is also available in open, shielded and sealed arrangements. Seals are readily available in PTFE and Buna-N-Rubber (contact and light contact) in most sizes. With the design of the ball complement and availability of a wide variety of retainers makes the R-Series a favorite in the design of high-speed motor applications among others.

R series ball bearings

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 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 R Series Ball Bearings?

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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