Servo specifications:Torque (kg-cm): 29 (6.0V) / 36 (7.4V) / 38 (8.2V)Speed: 0.119 s (6.0V) / 0.094 s (7.4V) / 0.085 s (8.2V)Stall Current (at locked load): 9.0A (6.0V) / 11A (7.4V) / 12A (8.2V)Working Voltage: 6.0V ~ 8.4V DC VoltsWorking Frequency: 1520µs / 333HzDead Band: 0.001 ms (Default)Bearing:2x Ball BearingGear: Metal Alloy GearMotor: Brushless MotorWeight: 79.5 g (2.80 oz)Dimension: 40 x 20 x 38.8 mm