Four Bolt Flange Units

We carry a complete selection of high quality four bolt flange units and are always updating and adding new sizes and styles. Need help in selecting the best products for your particular application? We’re here to make your job easier.

We Offer UPS Same Day Shipping on Four Bolt Flange Units and a variety of other products. Get 24 hour Emergency Customer Care: (718) 692-3032.



Four bolt flange units are available in a variety of configurations.  Although many look similar to each other, it’s important to get the correct configuration as there are small physical differences that can’t be ignored.  We carry a variety of heavy, medium and light duty flanges.

Our units feature:

  • Rugged cast iron housing
  • Rock solid base
  • Wide inner ring bearing
  • Dual heavy-duty contact-type seals
  • Steel plate slingers on sides for dust exclusion
  • Full self-alignment, generating less friction than other rolling bearing types
  • Lubrication fitting for adding grease
  • Set screw units with two set screws, 120° apart in the inner ring
  • Locking for one-directional applications in units with eccentric locking collars


AMI Bearings - Four Bolt Flange  FYH Bearings Four Bolt Flange SKF Four Bolt Flange