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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | JR-S3911 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
208.10 oz-in
14.98 kg-cm
1.5 N-m
7.4V
183.30 oz-in
13.20 kg-cm
1.3 N-m
6.6V
163.50 oz-in
11.77 kg-cm
1.2 N-m
|
| Speed |
8.4V
0.12 sec/60°
500.0 deg/s
83.3 RPM
7.4V
0.14 sec/60°
428.6 deg/s
71.4 RPM
6.6V
0.16 sec/60°
375.0 deg/s
62.5 RPM
|
| Physical | |
| Weight | 1.20 oz34.0 gBelow Average |
| Dimensions |
L 1.55 in W 0.83 in H 1.59 in L 39.4 mm W 21.1 mm H 40.4 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 5.4–8.4 V |
| Connectivity | |
| Connector | JR (Universal) estimate |
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 | Below Average Lighter than 21% of 466 Digital Mini servos |
Performance Analysis
| Shaft Power | 1.89–3.21 W |
| Power Density | 1.568 W/in³ More power-dense than 47% of 440 Digital Mini servos |
| Torque Density | 4.8088 oz-in/g |
| Torque-to-Volume Ratio | 79.93 oz-in/in³ |
| Speed-to-Weight | 0.18382 (1/sec·g) |
| Speed-Torque Trade-off | 26.16 |
| Voltage Range Width | 3.0 V Wider voltage range than 71% of 351 Digital Mini servos |
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