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Hitec - HRCM1085 HRC32985S 32985S 669962320498 0669962320498
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Hitec HS-985MG Ultra-Torque Coreless Metal Gear Servo
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Hitec HS-985MG Ultra-Torque Coreless Metal Gear Servo
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Possible Substitutions

Tech Notes
This is the Hitec HS-985MG Coreless Ultra Torque Servo with
Hitec, JR and Airtronics Z Connector.

Ideal for high performance aircraft up to 1/4 scale,
30 and larger helicopters, and steering and throttle for
1/8 and 1/10 scale on-and off-road vehicles.


Dual ball bearings
Water and dust resistant
Coreless motor
Three metal gears and one Karbonite gear
MOSFET motor drive
Indirect drive potentiometer
Gold plated contacts


Hitec HS-985MG Coreless Ultra Torque Servo with 1.8" (45mm) diameter
horn, 2.3" (59mm) double sided arm, 2.8" (72mm) double sided arm,
1.5" (39.5mm) single sided arm, mounting hardware and info sheet


Installing in model and connecting to receiver


Operating Speed: 0.16 sec/60 at 4.8V
0.13 sec/60 at 6V
Output Torque: 133.31 oz-in (9.6 kg-cm) at 4.8V
Weight: 2.18oz (62g)
Size: 1.57 x 0.78 x 1.45" (40 x 20 x 37mm)


A note on coreless motors: conventional servo motors have a steel
core armature wrapped with wire that spins inside the magnets. In
a coreless design, the armature uses a thin wire mesh that forms a
cup that spins around the outside of the magnet eliminating the
heavy steel core. This design results in smoother operation and
faster response time.

jxs 6/13/06

– If you need more information, use these Hitec resources –
Web Site:
Phone: 858-748-6948
  Postal Address:
POWAY, CA 92064

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