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Technical Specifications
Last Updated: 2026-10-26
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | RC40R |
| Category | Robotics |
| Performance | |
| Torque |
14.8V205.57 oz-in14.80 kg-cm1.5 N-m |
| Speed |
14.8V0.21 sec/60°285.7 deg/s47.6 RPM |
| Stall Current | ≤2.8 A≤2800 mAAverage |
| Physical | |
| Weight | 2.82 oz80.0 gAverage |
| Shape | Boxed |
| Dimensions |
L 1.77 in W 1.26 in H 0.984 in L 45.0 mm W 32.0 mm H 25.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Rotation Mode | Continuous |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Rotational Range | 360° |
| Angle Sensor | Magnetic Encoder |
| Control System | RS485 |
| Electrical & Environment | |
| Operating Voltage | 9–14.8 V |
| Temperature | -10–50 °C14–122 °F |
| Certification | CE | FCC |
| Connectivity | |
| Baud Rate | 115.2 Kbps |
| 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
| Weight | Average Lighter than 61% of 174 Large servos |
| Stall Current | Average Lower draw than 53% of 100 Large servos |
Performance Analysis
| Shaft Power | 1.81 W |
| Power Density | 0.825 W/in³ More power-dense than 21% of 62 Kpower servos |
| Torque Density | 2.5696 oz-in/g |
| Torque-to-Volume Ratio | 93.67 oz-in/in³ |
| Speed-to-Weight | 0.05952 (1/sec·g) |
| Speed-Torque Trade-off | 43.17 |
| Current-per-Torque Ratio | 0.0136 A/oz-in |
| Voltage Range Width | 5.8 V 3rd-highest voltage range width of 49 Kpower servos |
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