Blower Wheel Product Type Blower Wheel Wheel Type Forward-Curved Number of Inlets 2 Wheel Diameter 9 1/2 in Wheel Width 9 1/4 in Bore Diameter 1/2 in Wheel Material Steel Rotation CW Hub End Hub Type Convex Wheel Hub Position Center Wheel Construction Tabbed Maximum Speed 1 075 RPM Drive Type Direct Drive Number of Blades 96 Blade Width 1 in Includes Set Screws Yes Includes Not Applicable Compatible with Grainger Part Number 5NRC4 7HL55 7HL56 7HL57 7HL58