Air Motor 4 HP Running Torque @ Max Pressure 84 in.-lb. 128 cfm Max Air Flow Max RPM 3000 Shaft Dia 3/4 In. Shaft Length 1.57 In. Flange Mounting Port Size 1/2 in NPT REV Rotation Housing Material Cast Iron Gray Finish 300 RPM @ Max Torque Max Air Pressure 100 psi Overall Length 7.52 In. Overall Width 7.87 In. Overall Height 7.87 In. 0 Degrees to 250 Degrees F Operating Temp Range