Air Motor Output Power @ Maximum Speed 4 hp Maximum Torque 84 in-lb No Load Speed 3 000 RPM Maximum Flow Rate 128 cfm Shaft Diameter 5/8 in Shaft Length 2 in Mount Type Flange Inlet Size 1/2 in Air Inlet Type NPT Rotation CW/CCW Housing Material Aluminum Cast Iron Shaft Material Grade 40Cr Bearing Protection Not Applicable Maximum Operating Pressure 100 psi Includes Muffler Keyway Width 1/4 in Weight 15.44 lb Housing Material Grade Not Applicable