HS-81 Micro Servo by Hitec

Hitec
HRC31081S
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This is the HS-81 Ball Bearing, Hi-Speed Servo from Hitec. The HS-81 is among the most popular mini servos. Available in both resin and metal gear versions. With a fine balance between speed and torque, the HS-81ís were designed to be both economical and reliable. They are perfect for small electric aircraft as well as throttle servos on gas aircraft. By utilizing the standard size Hitec spline, any horn or arm that fits on a standard Hitec servo will fit on the HS-81.

  • Transit time: 0.11 sec/ 60 deg. @ 4.8V (0.09 sec/deg @ 6V)
  • Torque: 36.1 oz/in @ 4.8V (41.6 oz/in @ 6V)
  • Weight: 16.6g (.58 oz)
  • Length: 29.8mm (1.17")
  • Width: 12mm (0.47")
  • Height: 29.6mm (1.16")

This product was added to our catalog on January 2, 2007.

chris mingle
Verified Owner
Wednesday, Jan 5 2011 (about 6 years ago)
Hitec HS-81 Micro Servo
These servos were crap, I ordered two and the both vibrated and shuttered. They would not center and one even burnt out in less than 30 seconds.)