Blower Wheel Type Backward-Inclined Drive Type Belt Drive Includes Drive Package No Assembly Unassembled Wheel Diameter 36 1/2 in Maximum Inlet Air Temperature 250 Degrees F Shaft Diameter 1 7/8 in Bearing Type Ball Wheel Material Steel Housing Material Steel Number of Inlets 1 Inlet Diameter 39 in Outlet Shape Rectangular Outlet Height 39 1/4 in Outlet Width 25 1/2 in Outlet Diameter Not Applicable Minimum Motor Horsepower 3/4 hp Maximum Motor Horsepower 20 hp