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Four Bolt Flanges

3D CAD Model of a 4-Bolt Flange Ball Bearing from AST BearingsBearings that are mounted within a flanged housing are used when the bearing mounting surface is perpendicular to a shaft axis. They are commonly available in two, three, or four-hole configurations.  Four-bolt flanged ball bearing units have a square shape with 4 holes for mounting to accomodate higher loads than two-bolt flanges.  As with our 2-Bolt Flanged Bearing Units, 3-Bolt Flanged Bearing Units and our Flangette Series, the 4-bolt flanged bearing units have bearings that can be moved and aligned to better accomodate long shafts.

Standard housings from AST Bearings include both cast iron and thermoplastic materials and come with built-in grease nibs.

  Four Bolt Flanges - Standard and Thermoplastic Series - Inch and Metric

  • Inch Series - UCF-2E and UCF-G5PL Inch Series:
    • Inch Dimensions
    • 1/2" to 3-1/4" Shaft Diameters
    • Cast Iron or Thermoplastic Housings
  • Metric Series - UCFL-2E, and UCFL-G5PL Metric Series:
    • Metric Dimensions
    • 12 mm to 85 mm Shaft Diameters
    • Cast Iron or Thermoplastic Housings

Other types of 4-bolt flange ball bearings can be special ordered to meet your specific requirements. If you don't see it in our catalog, just ask us for it.

How to Select and Order 4-Bolt Flanges

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 4-bolt flanges including free 3D CAD model downloads.

Four-Bolt Flange Ball Bearing Catalog & CAD Library

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