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Technical Specifications
Last Updated: 2026-10-26
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
Top 10%
|
| 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 / Aluminum |
| 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 47% of 363 Digital Micro servos at 4.8V |
| Speed | Top 10% Faster than 91% of 361 Digital Micro servos at 4.8V |
| Weight | Above Average Lighter than 73% of 665 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.70–2.18 W |
| Power Density | 10.264 W/in³ More power-dense than 96% of 625 Digital Micro servos |
| Torque Density | 3.4724 oz-in/g Stronger than 79% of 363 Digital Micro servos |
| Torque-to-Volume Ratio | 124.07 oz-in/in³ Denser torque than 77% of 359 Digital Micro servos |
| Speed-to-Weight | 1.87970 (1/sec·g) Faster than 91% of 361 Digital Micro servos |
| Speed-Torque Trade-off | 1.85 Better balanced than 22% of 358 Digital Micro servos |
| Torque Gain per Volt | 21.94%/V More voltage-responsive (torque) than 77% of 302 Digital Micro servos |
| Speed Gain per Volt | 20.84%/V More voltage-responsive (speed) than 68% of 305 Digital Micro servos |
| Voltage Range Width | 3.6 V Wider voltage range than 88% of 553 Digital Micro servos |
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