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HS-805BB Servo

  • HS-805BB side view
  • HS-805BB (left) shown next to a standard size servo
  • HS-805BB included hardware
  • HS-805BB top view
  • HS-805BB back view
  • HS-805BB in box
  • HS-805BB included y-harness
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Known as the “monster” servo, the HS-805BB uses a heavy duty nylon gear train and a strong 10mm, 15 tooth output shaft to generate 343 oz./in. of torque that will easily move just about any large plane, car, truck or boat!


Dimensions 2.59" x 1.18"x 2.26" (66 x 30 x 57.6mm)
Product Weight 5.36 oz. (152g)
Output Shaft Style 15 tooth (D1) 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. (
Stall Torque (6.0V) 343.01 oz/in. (
Max PWM Signal Range (Standard) 556-2420μsec
Travel per µs (out of box) .105°/μsec
Max Travel (out of box) 199.5°
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
Potentiometer Drive Indirect Drive
Internal Feedback Style 5KΩ Potentiometer
Output Shaft Support Dual Ball Bearings
Gear Type Straight Cut Spur
Gear Material Nylon
Wire Length 11.81" (300mm)
Wire Gauge 22AWG

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