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Technical Specifications
Last Updated: 2026-09-14Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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| Identity | |
| Brand |  |
| Product Number | 35985S |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V
172.00 oz-in
12.39 kg-cm
1.2 N-m
4.8V
144.40 oz-in
10.40 kg-cm
1.0 N-m
|
| Speed |
6.0V
0.13 sec/60°
461.5 deg/s
76.9 RPM
4.8V
0.16 sec/60°
375.0 deg/s
62.5 RPM
|
| Running Current | (add) |
| Stall Current | (add) |
| Physical | |
| Weight | 2.19 oz62.0 g |
| Dimensions |
L 1.58 in W 0.79 in H 1.46 in L 40.0 mm W 20.0 mm H 37.0 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | MOS |
| Gears | Metal |
| Gear Spline/Teeth | 24 T estimate |
| Shaft Size | (add) |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 90° |
| Mechanical Limit | (add) |
| Pulse Cycle | 20 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 4 µs |
| Refresh Rate | (add) |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | Water Resistant |
| Certification | (add) |
| Idle Current | 0.007 A7 mA |
| Connectivity | |
| Connector | S |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | (add) |
Disclaimer: Most data is sourced from the manufacturer. Some data is sourced from our loyal community and with the help of AI. We aim for accuracy but are not responsible for inaccurate information.
Performance Analysis
| Shaft Power | 1.67–2.45 W |
| Torque Density | 2.3290 oz-in/g Stronger than 32% of the 832 Digital Standard servos in the database |
| Torque-to-Volume Ratio | 79.96 oz-in/in³ Denser torque than 34% of the 843 Digital Standard servos in the database |
| Power Density | 1.355 W/in³ More power-dense than 28% of the 1644 Digital Standard servos in the database |
| Speed-to-Weight | 0.10081 (1/sec·g) Faster than 34% of the 821 Digital Standard servos in the database |
| Speed-Torque Trade-off | 23.10 Better balanced than 44% of the 826 Digital Standard servos in the database |
| Torque Gain per Volt | 15.93%/V More voltage-responsive (torque) than 51% of the 673 Digital Standard servos in the database |
| Speed Gain per Volt | 19.22%/V More voltage-responsive (speed) than 75% of the 687 Digital Standard servos in the database |
| Voltage Range Width | 1.2 V Wider voltage range than 22% of the 1269 Digital Standard servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0033 Finer dead band than 6% of the 327 Digital Standard servos in the database |
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Reviews (3)
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Mike
September 5, 2013Application(s): 1/8 scale buggy
Comments: I've had this hs-5985mg servo for 8 years now. It's served as a 1/8 buggy steering servo as well 1/8 buggy disc brakes. I also have been unable to break it, nor has it ever had a failed bearing or stripped gears... Centers perfect just like the day I bought it with zero slop! I race, so I'm very picky about servos...Best servo I've ever owned period! Seriously
JJ
November 24, 2010Application(s): cycling 50-90 size nitro heli
Comments: I can`t break them :-))
Scottm
April 15, 2010Application(s): Revo 3.3 steering servo
Comments: Servo does a great job. Good torque, good speed and not too tough on batteries.