Air Motor 5 HP Running Torque @ Max Pressure 132.00 in.-lb. 175 cfm Max Air Flow No Load RPM 2500 Shaft Dia 3/4 In. Shaft Length 1.53 In. Foot Mounting Port Size 1/2 in NPT REV Rotation Housing Material Cast Iron Gray Metallic Finish 300 RPM @ Max Torque Max Air Pressure 100 psi Keyway Length 1.34 In. Overall Length 8.48 In. Overall Width 5.50 In. Overall Height 6.03 In. 0 Degrees to 250 Degrees F Operating Temp Range Includes Muffler