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HS-7956SHR Servo

  • HS-7956SHR back view
  • HS-7956SHR with quarter for scale
  • HS-7956SHR side view
  • HS-7956SHR top view
  • HS-7956SHR in box
  • HS-7956SHR shown next to a standard servo for scale
  • HS-7956SHR included hardware
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Attention giant scale modelers! This is your dream rudder servo! Hitec's digital, steel gear HS-7956SHR is unlike anything you’ve seen on the market. Featuring an integrated pull-pull system and wide mounting tabs measuring 1.73 x 1.54 inches (44 x 39mm), this tremendous servo eliminates the need for a separate rudder servo top case. The HS-7956SHR is equipped with a high performance coreless motor, ultra heavy-duty, ball bearing-supported metal arm and two adjustable ball link rods making it a monster performer for your 30 to 80cc giant scale aircraft. The oversized ball bearings provide strength and stability in order to eliminate any rocking motion of the output arm. For your convenience, they also developed a rudder tray conversion kit. Let this outstanding rudder servo get you flying in the right direction!

HS-7956SHR drawing

- All-in-one Rudder Tray on Metal Top Case
- Large size ball bearing for 3.5 inch Rudder horn
- Metal turnbuckle pull-pull wire tensioner
- 2 cell Li-Po compatible (6 cell NiMH)
- G2 Digital Amplifier w/ MOSFET drive
- Durable steel gears with dual ball bearing
- Ultra hardness gear shaft with 3 axial metal
- Heat sink for motor
- Water and dust resistant


Dimensions 1.57” x 0.79” x 1.45” (40 x 20 x 37mm)
Product Weight 2.40oz (68g)
Output Shaft Style 24 tooth (C1) spline
Voltage Range 6.0V - 7.4V
No-Load Speed (6.0V) 0.15sec/60°
No-Load Speed (7.4V) 0.12sec/60°
Stall Torque (6.0V) 277.74 oz/in. (20
Stall Torque (7.4V) 340.24 oz/in. (24.5
Max PWM Signal Range (Standard) 750-2250μsec
Travel per µs (out of box) .067°/μsec
Travel per µs (reprogrammed normal res) .133°/μsec
Travel per µs (reprogrammed high res) .060°/μsec
Max Travel (out of box) 101°
Max Travel (reprogrammed normal res) 199.5°
Max Travel (reprogrammed high res) 90°
Pulse Amplitude 3-5V
Operating Temperature -20°C to +60°C
Continuous Rotation Modifiable No
Direction w/ Increasing PWM Signal Clockwise
Deadband Width 2µs
Motor Type Coreless
Internal Feedback Style 5KΩ Potentiometer
Output Shaft Support Dual Ball Bearings
Gear Type Straight Cut Spur
Gear Material Steel
Wire Length 11.81" (300mm)
Wire Gauge 22AWG

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