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Technical Specifications
Last Updated: 2026-10-24
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | HD-WH-30KG |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
416.70 oz-in
30.01 kg-cm
2.9 N-m
7.4V
361.14 oz-in
26.00 kg-cm
2.6 N-m
6.0V
305.58 oz-in
22.00 kg-cm
2.2 N-m
Above Average
|
| Speed |
8.4V
0.11 sec/60°
545.5 deg/s
90.9 RPM
7.4V
0.13 sec/60°
461.5 deg/s
76.9 RPM
6.0V
0.16 sec/60°
375.0 deg/s
62.5 RPM
Below Average
|
| Physical | |
| Weight | 2.89 oz82.0 gBottom 10% |
| Dimensions |
L 1.60 in W 0.81 in H 1.52 in L 40.6 mm W 20.6 mm H 38.6 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 90° |
| Neutral Position | 1520 µs |
| Refresh Rate | 333 Hz |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -10–60 °C14–140 °F |
| Water Rating | Waterproof |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Origin | |
| Country of Origin | China |
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 | Above Average Stronger than 69% of 1055 Digital Standard servos at 6.0V |
| Speed | Below Average Faster than 33% of 1038 Digital Standard servos at 6.0V |
| Weight | Bottom 10% Lighter than 8% of 1872 Digital Standard servos |
Performance Analysis
| Shaft Power | 3.53–7.00 W |
| Power Density | 3.556 W/in³ More power-dense than 67% of 1762 Digital Standard servos |
| Torque Density | 3.7266 oz-in/g Stronger than 55% of 1048 Digital Standard servos |
| Torque-to-Volume Ratio | 155.12 oz-in/in³ Denser torque than 67% of 1053 Digital Standard servos |
| Speed-to-Weight | 0.07622 (1/sec·g) Faster than 10% of 1031 Digital Standard servos |
| Speed-Torque Trade-off | 48.89 Better balanced than 74% of 1029 Digital Standard servos |
| Torque Gain per Volt | 15.15%/V More voltage-responsive (torque) than 45% of 868 Digital Standard servos |
| Speed Gain per Volt | 18.94%/V More voltage-responsive (speed) than 73% of 868 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 54% of 1552 Digital Standard servos |
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