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EAN: 669962379908 SKU: 2220560 Category:



  • 6.0v to 7.4v
  • Motor Type – Coreless
  • Bearing Type – Dual Ball Bearing
  • Speed (6.0V/7.4V) – 0.20/ 0.17 sec @ 60 deg.
  • Torque kg./cm. (6.0V/7.4V) – 36.0 / 44.0
  • Size in Millimetres – 44 x 22 x 40
  • Weight grams – 76.54
  • Gears – Titanium

Hitec’s most technologically advanced servo, the “Monster Torque” HS-M7990TH features an ultra precise high resolution magnetic encoder instead of a conventional mechanical potentiometer. Designed to operate on a two cell LiPo Pack the HS-M7990TH features our newest high resolution “G2.5” 12 bit generation programmable digital circuit and our indestructible Titanium gears. Other features of the HS-M7990TH include a 7.4V optimized coreless motor, integrated heat sink case, and a top case with two hardened steel gear pins supported by brass axialbushings.


  • High Resolution Magnetic Digital Ecoder
  • G2.5 12 bit Digital Brogrammable Circuit
  • Titanium Gear Train (MK first gear)
  • Ultra Performance Coreless Motor
  • Integrated Heatsink Case
  • (8) O-Rings for Water/Dust/Fuel protection
  • Dual Ball Bearing Supported Output Shaft
  • 10% larger than a HS-7955TG

Programmable Features Include:

– Dead Band Width
– Direction of Rotation
– Speed of Rotation (slower)
– End Points
– Neutral Points
– Fail Safe On/Off
– Fail Safe Point
– Overload Protection* (default is off)

*These features are only programmable with the HFP-20, HPP-20 or HPP-21 programmers.



Motor Type:Coreless
Bearing Type:Dual Ball Bearing
Speed (6.0V/7.4V):0.20 / 0.17
Torque oz./in. (6.0V/7.4V):500 / 611
Torque kg./cm. (6.0V/7.4V):36 / 44
Size in Inches:1.72 x 0.88 x 1.57
Size in Millimeters:44 x 22 x 40
Weight oz.:2.73
Weight g.:76.5

HS-M7990TH Servo Specifications

Performance Specifications
Operating Voltage Range (Volts DC)6.0V ~ 7.4V
Speed (Second @ 60°)0.21 ~ 0.17
Maximum Torque Range oz. / in.500 ~ 611
Maximum Torque Range kg. / cm.36.0 ~ 44.0
Current Draw at Idle23 mA
No Load Operating Current Draw480 mA
Stall Current Draw9,800 mA
Dead Band Width1 µs
Physical Specifications
Dimensions (Inches)1.72 x 0.88 x 1.57
Dimensions (Metric)43.8 x 22.4 x 40.0
Weight (Ounces)2.78
Weight (Gram)79.0
Circuit TypeG2.5 Programable Digital
Motor TypeCoreless Metal Brush
Gear MaterialMetal
Bearing TypeDual Ball Bearing
Output Shaft (type / Ømm)Standard 24
Case MaterialPlastic / Aluminum
Dust / Water ResistanceSplash Proof
Connector Gauge (AWG) / Strand Count20 / 80



Servo Power

25.0kg +

Servo Voltage

Servo 6v, Servo 7.4v

Servo Operation

Digital Servo


Hi Tec

Gear Material

Metal Gear

Servo Size


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