HS-805MG Servo-Stock Rotation


The HS-805MG 'monster' servo is a beefier version of the popular HS-805BB servo.  The metal geartrain makes the HS-805MG an excellent candidate for steering 1/5 Scale vehcles and driving control surfaces on large scale models.  The large case size allows room inside for a beefy motor, huge gears and electronics capable of handling high current conditions.

How Far Will This Servo Rotate?

The answer to this question is partially dependent on what you are using to control the servo.
Click for a quick video explanation.

With an Average Radio System:
Your average transmitter and receiver will output a relatively narrow PWM signal range.

Radio System + Travel Tuner:
Adding a Servo Travel Tuner to your radio system setup will allow you to achieve wide PWM signal ranges.

Wide Signal Controllers:
Controllers such as the Actobotics® Servo Controller, Arduinos, and Raspberry Pi servo hats can usually send a wide signal.

Tech Tips


Output Shaft Style D15T Spline
Voltage Range 4.8V - 6.0V
No-Load Speed (4.8V) 0.19sec/60°
No-Load Speed (6.0V) 0.14sec/60°
Stall Torque (4.8V) 274.96 oz-in (19.8 kg.cm)
Stall Torque (6.0V) 343.01 oz-in (24.7 kg.cm)
Max PWM Signal Range 553-2455μsec
Travel per µs .105°/μsec
Max Rotation 199°
Pulse Amplitude 3-5V
Operating Temperature -20°C to +60°C
Current Drain - idle (4.8V) 8mA
Current Drain - idle (6.0V) 8.7mA
Current Drain - no-load (4.8V) 700mA
Current Drain - no-load (6V) 830mA
Continuous Rotation Modifiable Yes
Direction w/ Increasing PWM Signal Clockwise
Deadband Width 8µs
Motor Type 3 Pole Ferrite
Feedback Style 5KΩ Potentiometer
Output Shaft Support Dual Ball Bearings
Gear Material 4 Heavy Duty Metal Gears & 1 Nylon Gear
Wire Length 11.81" (300mm)
Weight 6.95 oz. (197g)
Wire Gauge 22AWG
Servo Size Large

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