Servo Align DS650 Manufacturer Align Applications Helicopter Tailrotor Type Coreless Digital Torque 4.8V 55.5 oz/in (4 kg/cm) Torque 6V 69.4 oz/in (5 kg/cm) Speed 4.8V 0.058 sec/60 degrees Speed 6V 0.048 sec/60 degrees Dimensions 40.3mm x 20.1mm x 36mm Weight 56g Bearings Top Ball Bearing Gear Type Metal