Torque(6.0V): 11.5 kg-cm (159.7 oz/in) Torque(7.4V): 15.0 kg-cm (208.3 oz/in) Torque(8.4V): 16.5 kg-cm (229.1 oz/in) Speed: 0.072 sec (6.0V) │ 0.060 sec (7.4V) │ Speed: 0.050 sec (8.4V) Operating Voltage：6.0 ~ 8.4 DC Volts Weight: 52.0 g (1.83 oz) Bearing Type：Ball Bearing x 2 Motor Type：Brushless Motor Gear Type：Titanium & Steel Operating Temperature: -20℃~60℃ Working frequence：1520μs / 333hz Size：41.0 x 20.0 x 26.0 mm ( 1.61 x 0.79 x 1.02 in)