Servo specifications:Torque (kg-cm): 50 (6.0V) / 60 (7.4V) / 68 (8.2V)Speed: 0.19 s (6.0V) / 0.16 s (7.4V) / 0.14 s (8.2V)Stall Current (at locked load): 5.9A (6.0V) / 7.5A (7.4V) / 8.4A (8.2V)Working Voltage: 6.0V ~ 8.4V DC VoltsWorking Frequency: 1520µs / 333HzDead Band: 0.0008 ms (Default)Bearing:Dual Ball BearingsGear: Metal Alloy GearMotor: Japanese-made Brushless MotorWire Length 29 cmWeight: 93.3 g (3.29 oz)Dimension: 43 x 22 x 39.65 mm