This 3/4 HP 1800 RPM motor with 3/4″ shaft is single phase, 60hz and requires amps at 115 vac or 2.3 amps at 230 vac. Use with our 10″ buffing wheel with 3/4″ arbor hole. Overall shaft length is about 28″ distance from the housing to end of shaft is about 6 1/2″. Motor is protected by a 3 year warranty.