Torque(6.0V): 9.0 kg-cm (125.0 oz/in) Torque(7.4V): 12.0 kg-cm (166.6 oz/in) Speed: 0.07 sec (6.0V) │ 0.06 sec (7.4V) Operating Voltage:6.0 ~ 7.4 DC Volts Weight: 48.0 g (1.69 oz) Bearing Type:Ball Bearing x 2 Motor Type:Coreless Motor Gear Type:Titanium & Alu Working frequence:1520 s / 333hz Size:40.0 x 20.0 x 26.4 mm ( 1.57 x 0.79 x 1.03 in)