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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | ROBS-401 |
| Category | Robotics |
| Performance | |
| Torque |
12.0V
555.50 oz-in
40.00 kg-cm
3.9 N-m
9.6V
416.60 oz-in
30.00 kg-cm
2.9 N-m
|
| Speed |
12.0V0.22 sec/60°276.0 deg/s46.0 RPM |
| Stall Current | 3.5–4 A3500–4000 mABelow Average |
| Physical | |
| Weight | 2.89 oz82.0 gAverage |
| Shape | Boxed |
| Dimensions |
L 1.83 in W 1.12 in H 1.34 in L 46.5 mm W 28.4 mm H 34.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Rotation Mode | Continuous |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Angle Sensor | Magnetic Encoder |
| Control System | RS-485 |
| Operating Modes | Position, Velocity |
| Electrical & Environment | |
| Operating Voltage | 9–12 V |
| Temperature | -10–60 °C14–140 °F |
| Connectivity | |
| Baud Rate | 38.4 Kbps–1 Mbps |
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 | Average Lighter than 52% of 145 Digital Large servos |
| Stall Current | Below Average Lower draw than 31% of 97 Digital Large servos |
Performance Analysis
| Shaft Power | 4.72 W |
| Power Density | 1.720 W/in³ More power-dense than 66% of 110 Digital Large servos |
| Torque Density | 5.0805 oz-in/g |
| Torque-to-Volume Ratio | 151.69 oz-in/in³ |
| Speed-to-Weight | 0.05610 (1/sec·g) |
| Speed-Torque Trade-off | 90.57 |
| Current-per-Torque Ratio | 0.0096 A/oz-in |
| Voltage Range Width | 3.0 V Wider voltage range than 46% of 131 Digital Large servos |
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