Torque(4.8V): 21.0 kg-cm (291.6 oz/in) Torque(6.0V): 25.0 kg-cm (347.2 oz/in) Speed: 0.13 sec (4.8V) │ 0.11 sec (6.0V) Operating Voltage：4.8 ~ 6.0 DC Volts Weight: 80.0 g (2.8 oz) Bearing Type：Ball Bearing x 2 Motor Type：Coreless Motor Gear Type：Titanium & Steel Operating Temperature：-20℃~60℃ Working frequence：1520μs / 333hz Size：40.0 x 20.0 x 38.8 mm ( 1.57 x 0.79 x 1.53 in)