The most important thing know is that you do not have to do this yourself.  Mach III will ship the sprocket or pulley you require pre-mounted on the pilot of the clutch, clutch-brake or torque limiter you’ve ordered.  If this is a replacement or new addition to a Mach III unit you already have, we can supply the sprocket or pulley pre-bored and tapped to fit the pilot.  Contact customer service for  pricing and information.

For those who prefer to machine their own sprockets and pulleys: