Features:Performance: With anti blocking and anti burning protection function, with waterproof function.CNC precision gear, it is more wear-resistant and not easy to break and sweep teeth.Stainless steel gear high torque for RC car, crawler and robot.Great choice for university professors and students who are interested in developing software for robot parts.If there are any problems, please contact our store in time. We will give you a satisfactory solution.Specifications:Item: 20KG Digital ServoControl System: PWM Control (1500 u-sec is the central point)Working Voltage: 4.8V ~ 6VWorking Temperature: -20C°~ +60C°Torque: 4.8V /17.2kg.cm, 6.0V /20.3kg.cmIdle Speed: 4.8V/0.15sec / 60 deg, 6.0V/0.13sec / 60 degSteering Angle: 180 degreeIdle Current: 4.8V/470mA 6.0V /650mALoad Current: 4.8V/750mA 6.0V /950mADead Band: 2usecLifetime: >15000 Times without LoadMoving Angle: 60°±10°Drive Type: MOS DriveMotor Type: Cored MotorPotentiometer Type: Direct DriveSignal Booster Type: DigitalSize: 40.5*20.5*40.3mmWeight: 69g (without Accessories)Ball Bearing: 2BBGear Material: Stainless SteelCase Material: PA66+Fiber40%Wire Length: 260mmWire Gauge No and Plug Type: 26AWG, JR PlugBrown Wire: NegativeRed Wire: PositiveOrange Wire: SingalApplication: RC Car, RC Airplane, HelicopterPackage Information:Package Size: 11.5*8*2cmPackage Weight: 324gGift Box PackagePacking List:4* Digital Servo4*25T Servo Arm