Hitec HS-81 Micro Servo

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Hitec HS-81 Micro Servo
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Hitec HS-81 Ball Bearing, Hi-Speed Servo. 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-81’s 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.

Specifications:
  • Speed:
    • 4.8V: 0.11 sec/60 deg.
    • 6.0V: 0.09 sec/60 deg.
  • Torque:
    • 4.8V: 36.1 oz/in
    • 6.0V: 41.6 oz/in
  • Weight: 16.6g (.58 oz)
  • Length: 29.8mm (1.17")
  • Width: 12mm (0.47")
  • Height: 29.6mm (1.16")
Limited Warranty:
Hitec Servo Warranty: Each Hitec servo is backed by a limited two-year warranty from the date of purchase. Hitec RCD USA, INC. shall REPAIR OR REPLACE, at Hitec RCD, INC., defective equipment covered by this warranty, otherwise the purchaser and/or consumer is responsible for any charges for the repair or replacement of the product.

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

Verified Owner
Thursday, Aug 11 2022 (4 months ago)
Hitec HS-81 Micro Servo
These are absolute garbage. The gears stripped when I was programming the throws. Spend the extra money and get the 82.
Verified Owner
Wednesday, Jan 5 2011 (about 11 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.