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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 9129 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
47.23 oz-in
3.40 kg-cm
0.3 N-m
7.4V
43.06 oz-in
3.10 kg-cm
0.3 N-m
6.0V
31.95 oz-in
2.30 kg-cm
0.2 N-m
4.8V
26.39 oz-in
1.90 kg-cm
0.2 N-m
Average
|
| Speed |
8.4V
0.04 sec/60°
1,500.0 deg/s
250.0 RPM
7.4V
0.05 sec/60°
1,200.0 deg/s
200.0 RPM
6.0V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
4.8V
0.07 sec/60°
857.1 deg/s
142.9 RPM
Above Average
|
| Physical | |
| Weight | 0.27 oz7.6 gAbove Average |
| Dimensions |
L 0.787 in W 0.315 in H 0.858 in L 20.0 mm W 8.0 mm H 21.8 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Titanium |
| Gear Spline/Teeth | 15 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| Power Source | 2S LiPo |
| Water Rating | IP67 |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Origin | |
| Country of Origin | German |
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 | Average Stronger than 50% of 328 Digital Micro servos at 4.8V |
| Speed | Above Average Faster than 88% of 328 Digital Micro servos at 4.8V |
| Weight | Above Average Lighter than 72% of 620 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.70–2.18 W |
| Power Density | 10.264 W/in³ More power-dense than 95% of 590 Digital Micro servos |
| Torque Density | 3.4724 oz-in/g Stronger than 81% of 327 Digital Micro servos |
| Torque-to-Volume Ratio | 124.07 oz-in/in³ Denser torque than 78% of 327 Digital Micro servos |
| Speed-to-Weight | 1.87970 (1/sec·g) Faster than 90% of 327 Digital Micro servos |
| Speed-Torque Trade-off | 1.85 Better balanced than 23% of 327 Digital Micro servos |
| Torque Gain per Volt | 21.94%/V More voltage-responsive (torque) than 81% of 268 Digital Micro servos |
| Speed Gain per Volt | 20.84%/V More voltage-responsive (speed) than 69% of 273 Digital Micro servos |
| Voltage Range Width | 3.6 V Wider voltage range than 87% of 511 Digital Micro servos |
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