Air Motor, Output Power @ Maximum Speed 9.5 hp, Maximum Torque 290 in-lb, No Load Speed 2,000 RPM, Maximum Flow Rate 275 cfm, Shaft Diameter 7/8 in, Shaft Length 2 1/8 in, Mount Type Flange, Foot, Inlet Size 1 1/4 in, Air Inlet Type NPT, Rotation CW/CCW, Housing Material Cast Iron, Shaft Material Grade 40Cr, Bearing Protection Not Applicable, Maximum Operating Pressure 100 psi, Includes Muffler, Keyway Width 1/4 in, Weight 72.32 lb, Housing Material Grade Not Applicable WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -