Torque(6.0V): 13.5 kg-cm ( 187.5 oz/in) Torque(7.4V): 16.5 kg-cm ( 229.1 oz/in)Torque(8.4V): 18.0 kg-cm ( 250.0 oz/in)Speed: 0.10 sec (6.0V) ¦¢ 0.095 sec (7.4V) ¦¢ Speed: 0.085 sec (8.4V)Operating Voltage£º6.0 ~ 8.4 DC VoltsWeight: 55.0 g (1.94 oz)Bearing Type£ºBall Bearing x 2Motor Type£ºCoreless MotorGear Type£ºTitanium & SteelOperating Temperature£º-20¡É~60¡ÉWorking frequence£º1520¥ìs / 333hzSize£º41.0 x 20.0 x 26.3 mm ( 1.61 x 0.79 x 1.04 in)