SpecificationsTorque(4.8V):2.20 kg-cm (30.55 oz/in)Torque(6.0V):2.6 kg-cm (36.11 oz/in)Speed:0.12 sec (4.8V) / 0.09 sec (6.0V)Operating Voltage?4.8 ~ 6.0 DC VoltsSpline:25TWeight:14.2g (0.50 oz)Bearing Type?Ball Bearing x 2Motor Type?DC MotorGear Type:Copper & AluminumOperating Temperature:-20°C ~ 60°CWorking frequency?1520 micro seconds / 333hzSize?22.8×12.0x25.6mm (0.90×0.47×1.01″)