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Technical Specifications
Last Updated: 2026-10-10
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 |
| 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 | Hong Kong |
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 68% of 1043 Digital Standard servos at 6.0V |
| Speed | Below Average Faster than 31% of 1041 Digital Standard servos at 6.0V |
| Weight | Bottom 10% Lighter than 7% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 3.53–7.00 W |
| Power Density | 3.556 W/in³ More power-dense than 66% of 1759 Digital Standard servos |
| Torque Density | 3.7266 oz-in/g Stronger than 54% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 155.12 oz-in/in³ Denser torque than 65% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.07622 (1/sec·g) Faster than 10% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 48.89 Better balanced than 74% of 1031 Digital Standard servos |
| Torque Gain per Volt | 15.15%/V More voltage-responsive (torque) than 45% of 850 Digital Standard servos |
| Speed Gain per Volt | 18.94%/V More voltage-responsive (speed) than 73% of 871 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 54% of 1539 Digital Standard servos |
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