Discover XQ-Power Servos in Our eBay Store!
Shop Now
Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 9128 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
30.14 oz-in
2.17 kg-cm
0.2 N-m
7.4V
27.09 oz-in
1.95 kg-cm
0.2 N-m
6.0V
19.86 oz-in
1.43 kg-cm
0.1 N-m
|
| Speed |
8.4V
0.05 sec/60°
1,200.0 deg/s
200.0 RPM
7.4V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
6.0V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
|
| Physical | |
| Weight | 0.24 oz6.9 gAbove Average |
| Dimensions |
L 0.772 in W 0.315 in H 0.878 in L 19.6 mm W 8.0 mm H 22.3 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| 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 | IP56/67 |
| 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
| Weight | Above Average Lighter than 78% of 620 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.61–1.11 W |
| Power Density | 5.220 W/in³ More power-dense than 80% of 590 Digital Micro servos |
| Torque Density | 2.8783 oz-in/g |
| Torque-to-Volume Ratio | 93.02 oz-in/in³ |
| Speed-to-Weight | 2.41546 (1/sec·g) |
| Speed-Torque Trade-off | 1.19 |
| Voltage Range Width | 3.6 V Wider voltage range than 86% of 511 Digital Micro servos |
Similar Active Servos
Reviews of Robbe FS-135X
Be the first to review!