Dayton belt drive motors turn a pulley or belt to power HVAC equipment such as belt-drive fans, air coolers, roof ventilators and air circulators. These motors feature frames made of steel / rolled steel for structural rigidity and are integrated with ball / sleeve bearings for low rotational friction. They also have a capacitor that provides additional power during startup to deliver high starting torque while running at a maximum speed of 1725 rpm. These motors offer nominal efficiency up to 66% and are available in split-phase & capacitor-start variants.