Tubeaxial Fan Blade Diameter 30 in Maximum Motor Horsepower 5 hp Minimum Motor Horsepower 3/4 hp Maximum Motor Speed 1 551 RPM Minimum Motor Speed 841 RPM Maximum Airflow 16 495 cfm Minimum Airflow 8 940 cfm Maximum Static Pressure 1 in wc For Air Type Emergency Smoke Assembly Unassembled Blade Material Steel Housing Material Steel Number of Blades 6 Standards AMCA Sound and Air Bolt Circle Diameter 32 1/4 in Includes Drive Package No Includes Motor No Bearing Type Ball Bearing