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Technical Specifications
Last Updated: 2026-09-14| 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
Below Average
|
| 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
Average
|
| Physical | |
| Weight | 2.19 oz62.0 gAverage |
| Dimensions |
L 1.575 in W 0.787 in H 1.457 in L 40.0 mm W 20.0 mm H 37.0 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | MOS |
| Gears | Metal |
| Gear Spline/Teeth | 24 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| Rotational Range | 90° |
| Pulse Cycle | 20 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Dead Band | 4 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3-5V |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | Water Resistant |
| Idle Current | 0.007 A7 mA |
| Connectivity | |
| Connector | S |
| Wire Length | 300 mm11.81 in |
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.
Class Comparison
| Torque | Below Average Stronger than 31% of 1060 Digital Standard servos at 4.8V |
| Speed | Average Faster than 37% of 1045 Digital Standard servos at 4.8V |
| Weight | Average Lighter than 55% of 1880 Digital Standard servos |
Performance Analysis
| Shaft Power | 1.67–2.45 W |
| Power Density | 1.355 W/in³ More power-dense than 27% of 1768 Digital Standard servos |
| Torque Density | 2.3290 oz-in/g Stronger than 28% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 79.96 oz-in/in³ Denser torque than 32% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.10081 (1/sec·g) Faster than 37% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 23.10 Better balanced than 42% of 1034 Digital Standard servos |
| Torque Gain per Volt | 15.93%/V More voltage-responsive (torque) than 52% of 873 Digital Standard servos |
| Speed Gain per Volt | 19.22%/V More voltage-responsive (speed) than 75% of 874 Digital Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 22% of 1560 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0033 Finer dead band than 7% of 504 Digital Standard servos |
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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.