Taper Bore Weld-on-Hubs are made out of steel, drilled, tapped and taper bored to receive standard Taper Bushes. The extended flange provides a convenient means of welding hubs into fan rotors, steel pulleys, plate sprockets, impellers and other devices which must be firmly fastened to the shaft. Weld-on-Hubs are easy to install and entirely suitable for use where severe operating conditions are met. Weld-on-Hubs are manufactured to complement the Taper Bush range. All are manufactured from C45 Steel