Air Motor, Output Power @ Maximum Speed 2.5 hp, Maximum Torque 78.75 in-lb, No Load Speed 3,000 RPM, Maximum Flow Rate 68 cfm, Shaft Diameter 5/8 in, Shaft Length 2 5/8 in, Mount Type Foot, Hub, Inlet Size 1/2 in, Air Inlet Type NPT, Rotation CW, Housing Material Cast Iron, Shaft Material Grade 40Cr, Bearing Protection Not Applicable, Maximum Operating Pressure 80 psi, Includes Muffler, Keyway Width 1/4 in, Weight 13.45 lb, Housing Material Grade Not Applicable, Housing Material Finish Painted WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov -