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Ball Bearings

Square Bore Ball Bearings

Square bore ball bearings are specialty products that exhibit all of the characteristics of standard Single Row Ball Bearings except for the fact the inner ring has a square interior designed for a square shaft as opposed to a round one. These products also are typically in inch dimensions rather than metric. The agriculture industry is one of the largest users of square bore bearings for farm machinery; however, many other industries utilize them.

Square bore 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 supplies a wide variety of square bore bearings, all with inch dimensions.  The range of product specifications include:

  • Spherical Outer Ring (OD) or Straight Outer Ring (OD)
  • Shaft sizes (ds) from 7/8" square to 1-1/2" square
  • Square Hole Sizes from 0.91" to 1.53"
  • Outer Diameters from 3.1496" to 4.0770"
  • Outer Widths from 0.7086" to 1.4370"
  • Inner Widths from 1.1890" to 1.7520"

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 Square Bore 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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