Reduction Ratio: 3.3:1 to 915 : 1 Rated Torque : 0.5 Kg-m to 5.0 Kg-m Input Power : 0.125 HP to 1.0 HP Input Speed : 1440,2000 RPM Prime Mover : Electric Motor, Servo Motor Input Type : Free Input, Hollow Input Output Type : Male / Female Keyed Output Male / Female Splined Output.