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Hitec 33322S
HS-322HD Deluxe Standard Servo

Manufacturer: Hitec (Website)
Part Number: 33322S
Found In:  Standard Servos
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» What They Say

The HS-322HD Standard Heavy Duty Servo utilizes Hitec's revolutionary Karbonite gear train which is four times stronger than the standard white nylon gears. Even after hundreds of thousands of cycles they don't show any signs of wear. Karbonite gears and a custom IC makes the HS-322HD a great choice for an economical sport servo.

  • Karbonite Gear Train
  • Custom IC
  • Size Category: Standard
  • Type: Analog
  • Application: Standard sized aircraft and sailplanes
  • Torque: 41.7 oz-in (3.0kg-cm) @ 4.8V; 51.38 oz-in (3.7kg-cm) @ 6V
  • Speed: 0.19 sec/60 deg @ 4.8V; 0.15 sec/60 deg @ 6V, at no load
  • Length: 1.57 in (40.0mm)
  • Width: 0.78 in (20.0mm)
  • Height: 1.43 in (36.5mm)
  • Weight: 1.51 oz (43.0g)
  • Bushing Or Bearing: Bushing
  • Motor Type: 3 Pole
  • Connector Type: Universal
  • Gear Material: Karbonite
  • Current Draw Idle: 7.4mA @ 4.8V; 7.7mA @ 6V
  • Voltage: 4.8V to 6.0V
  • Deadband:
Tech Notes


Be aware that high vibration gas (not glow) engines combined with large control surfaces and large throws (3D models) can put undue strain on the gears. Metal geared servos are recommended for these applications, even if under 12lbs.


Do not use thread lockers on Karbonite geared servo as it will cause the output shaft to fail.

HS-322HD Deluxe Standard Servo Featured Photo
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HS-322HD Deluxe Standard Servo Photo #1
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