Features: Low vibration levels MM, MN, MO air motor models are equipped with a silencing system that reduces the noise levels Highly effective due to compact size, high power output and low air consumption Designed using materials and processes that minimize the effects on the environment Drive shaft diameter: all drive shafts include a UNI 6604 Form A key slot Specs: Model No.: M0110R Reversible: Yes Power: 645 Watt / 0.86 hp Speed at Max. Power: 550 rpm Torque at Max. Power: 126.56 lbf·in / 14.3 N.m Static Torque: 247.8 lbf·in / 28.0 N.m No Load Speed: 1100 rpm Air Consumption at Max. Power: 38.1 cfm Weight: 9.02 lb / 4.1 kg More Info: The Fiam MO110R 14.3NM/1100RPM Smooth Air Motor Output Shaft has an Innovative design insures reliable motor starting even at low air pressure, Does not overheat in difficult, heavy duty conditions, repetitive start/stops or repetitive reversing. How To Select The Right Air Motor