Torque: 1.4 kg-cm (3.7V) / 2.3 kg-cm (6.0V) / 2.8 kg-cm (7.4V) / 3.3 kg-cm (8.2V)Speed: 0.21s (3.7V) / 0.13s (6.0V) / 0.10s (7.4V) / 0.09s (8.2V)Weight: 7.5 g (+0.1)Dimension: 23 x 9 x 16.7 mm Working Voltage: 3.7 ~ 8.2 V DC Volts (for 2S ~ 1S LiPo)Working frequency: 1520µs / 333HzDead Band: 0.001 ms (Default)Bearing: 1* ball bearing + 1*Oil-retaining bearing + 2*Jewel bearing Motor: Coreless MotorGear: 7075 Chrome-Titanium alloy gearCase: 6061 Aluminum CNC Casing