Feature: 1. Quick Response: This RC 30KG servo is equipped with highly accurate potentiometer and digital chip in high resolution to ensure stable performance, quick response, strong anti interference, low noise and fast heat dissipation. 2. Long Service Life: This waterproof digital servo adopts premium aluminium alloy and plastic material, which ensures long service life. 3. High Accuracy: This RC waterproof servo features highly precise metal gears with hard anodised finish. CNC aluminium midcase to enhance heat dissipation and ensure normal operation of the servo motor. 4. 180 Degree Rotation: This RC car servo supports 180 degrees rotation, 0 to 180 degrees adjustable angle, good linearity and highly accurate control. It can rotate 360 degrees when power is off, which is very suitable for robot joint activities. 5. Wide Application: This 30KG RC digital servo is suitable for robots, mechanical arms, climbing cars, RC boats, RC aircraft and so on. Specification: Item Type: RC Front Lower Swing Arm Material: Aluminium Alloy, Plastic Servo Size: Approx. 54 x 20 x 45.5mm / 2.1 x 0.8 x 1.8in ( Manual Measurement, Slight Error May Exist ) Teeth: 25T Control System: PWM Control (1500 Usec As the Center Point) Pulse Width: 500μs to 2500μs Operating Voltage: 4.8V to 7.4V Operating Temperature: Minus 20℃ to + 60℃ Steering Angle: 180 Degrees Torsion: 6V/26kg.cm. 7.4V/30kg.cm Speed: 6V/0.18sec/60 Degrees. 7.4V/0.16sec/60 Degrees Dead Zones: 3usec Plug: JR Plug Application: RC Car, Robot, Boat, Mechanical Arm, Etc. Package List: 1 x RC Front Lower Swing Arm1 x Metal Servo Arm4 x Plastic Servo Arm4 x Screw Setter4 x Rubber Pad6 x Screw