Hitec HS-645MG Ultra Torque Servo

This standard size analog servo features three metal gears plus one resin metal gear, dual ball bearings and comes with a selection of plastic servo horns for a variety of applications. It is modifiable for continuous rotation.

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This servo fits our standard servo adapter kit.


  • Dual Ball Bearing
  • Four adjustable splined horns
  • torque - 107 oz-in (7.7 kg-cm) at 4.8V; 133 oz-in (9.6 kg-cm) at 6V
  • speed - 0.24/60° @ 4.8V; 0.2/60° at 6V
  • One year manufacturer's warranty (*)
  • 55.2 grams
  • 41 x 20 x 38mm (1.59 x 0.77 x 1.48 in.)

Application notes
Unmodified, this servo is capable of 180° range of motion. -90° is achieved with a 600 usec pulse signal. +90° is achieved with a 2,400 usec pulse signal. Center is 1,500 usec.

Please note that custom modifications void manufacturer's warranties. We guarantee our customizations for 30 days from the date of shipment.

Unit Price: US$34.95
Availability: In stock

Related Items

Servo Attachment kit 1. 11 pcs

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