Savox SV0320 High Voltage Standard Digital Servo 0.13/83.3 at 7.4 Dimensions(mm): 407X202X370, Weight(g): 460 Speed(at 60V sec/60): 16, Torque(at 60V oz-in): 625 Speed(at 74V sec/60): 13, Torque(at 74V oz-in): 833 Gear: Industrial Plastic, Bearing: 1BB Case: Plastic, 25 Tooth Spline