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Technical Specifications
Last Updated: 2026-09-13
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | SR431 |
| Category | Robotics |
| Performance | |
| Torque |
6.0V
201.40 oz-in
14.50 kg-cm
1.4 N-m
4.8V
169.50 oz-in
12.21 kg-cm
1.2 N-m
Above Average
|
| Speed |
6.0V
0.18 sec/60°
333.3 deg/s
55.6 RPM
4.8V
0.20 sec/60°
300.0 deg/s
50.0 RPM
Below Average
|
| Physical | |
| Weight | 2.19 oz62.0 gBottom 10% |
| Shape | Boxed |
| Dimensions |
L 1.65 in W 0.81 in H 1.56 in L 42.0 mm W 20.5 mm H 39.5 mm |
| Drivetrain | |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Standard |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Analog |
| Rotational Range | 180° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Connectivity | |
| Connector | Futaba J |
| Wire Length | 270 mm10.63 in |
| Origin | |
| Country of Origin | China |
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 88% of 157 Analog Standard servos at 4.8V |
| Speed | Below Average Faster than 28% of 156 Analog Standard servos at 4.8V |
| Weight | Bottom 10% Lighter than 7% of 430 Analog Standard servos |
Performance Analysis
| Shaft Power | 1.57–2.07 W |
| Power Density | 0.997 W/in³ More power-dense than 78% of 421 Analog Standard servos |
| Torque Density | 2.7339 oz-in/g Stronger than 85% of 157 Analog Standard servos |
| Torque-to-Volume Ratio | 81.66 oz-in/in³ Denser torque than 87% of 157 Analog Standard servos |
| Speed-to-Weight | 0.08065 (1/sec·g) Faster than 8% of 156 Analog Standard servos |
| Speed-Torque Trade-off | 33.90 Better balanced than 91% of 156 Analog Standard servos |
| Torque Gain per Volt | 15.68%/V More voltage-responsive (torque) than 53% of 121 Analog Standard servos |
| Speed Gain per Volt | 9.25%/V More voltage-responsive (speed) than 9% of 122 Analog Standard servos |
| Voltage Range Width | 1.2 V Wider voltage range than 37% of 186 Analog Standard servos |
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