Servo JR Sport ST47 Manufacturer JR Sport Applications Heli/Airplanes Type Analog Standard Torque 4.8V 47 oz/in (3.35 kg/cm) Torque 6.0V 55 oz/in (2.4 kg/cm) Speed 4.8V 0.18 sec/60 degrees Speed 6.0V 0.15 sec/60 degrees Dimensions 39mm x 37mm x 19mm Weight 45g Bearings - Gear Type Nylon