1542 W. Industrial Park St. Covina, CA 91722

One Inch (1″) B-Type Sprocket Hub

These plated Steel Hubs are 1/2" Thick, have a 2-1/2" OD and a 1-1/4"
shoulder. 1" Bore with a 1/4" keyway and opposed set screw hole. Hub
has a 3-hole bolt pattern drilled on a 1-3/4" circle to fit a P5340 bolt pattern.


  • For 1-1/4" ID Sprockets, Any Chain Size
  • P5340 Bolt Hole Pattern
  • Plated Steel
Steel Mounting Hub, 1" Bore 2040

Click Here for Custom Aluminum
Sprockets to fit this Hub

Steel B-Type Sprocket Hub, 2.25" OD, 5/8" Bore, 1/2" Thick, 3/16" Keyway, 3-hole on 1-11/16" Bolt Circle, P5256 Bolt Pattern, part no. 2037