JX Digital 62g 20kg.cm Servo Metal Gear . Dimension: 40.5x20.2x40mm Water Proof Enhanced Torque(4.8V): 17.25 kg-cm Torque(6.0V): 20.32 kg-cm Speed: 0.18 sec (4.8V) │ 0.16 sec (6.0V) Operating Voltage:4.8 ~ 6.0 DC Volts Weight: 62.0 g (2.1 oz) Bearing Type:Ball Bearing x 2 Motor Type:DC Motor Operating Temperature:-20℃~60℃ Working frequence:1520μs / 330hz