12" Diameter Belt Drive Fan - 1/2HP Single Phase Motor These axial fans help boost in-line ducting and aid in ventilation to remove fumes, dust or smoke from environment. Axial fans are made with spark resistant, cast aluminum airfoil axial impeller. Heavy duty welded steel drum housing with welded angle ring flanges offers aerodynamically efficient performance. TEFC industrial duty motor powers adjustable pitch fan blades. Tube axial fans are mountable in ductwork in any position. Belt Drive Fans feature V-belt driven motor that is mounted outside of airstream to provide low-speed operation. Made using cast iron fan sheaves and oil and heat resistant fan belts. Steel fan shaft is sealed with self-aligning pillow block ball bearings for low maintenance. Tested to ANSI/AMCA standards. Conforms to NEMA standards. Gray enamel finish. Horsepower rating based upon maximum speed/load. For commercial use only.