Belt Drive Furnace Motor / Blower Motor CENTURY ELECTRIC MOTOR. 1/2 hp. 1725RPM. 48 Frame. 115 Volts. 7.2 amps Service Factor = 1.25 1/2″ x 1 1/2″ shaft. Reversible Resilient/Cradle Mount. Automatic Overload Protection. Shaft adapter (bushing) for 5/8 Shaft Continuous Duty. Quick Connect Terminals. Easy Rotation Change. Open Drip Proof Sleeve Bearings. Continuous Duty. Class B Insulation Residential Application.