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Technical Specifications
Last Updated: 2026-07-10
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Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | SM-40BL-C001 |
| Category | Hobby |
| Performance | |
| Torque |
12.0V555.60 oz-in40.01 kg-cm3.9 N-m |
| Speed |
12.0V
0.15 sec/60°
400.0 deg/s
66.7 RPM
12.0V
0.15 sec/60°
400.0 deg/s
66.7 RPM
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| Running Current | (add) |
| Stall Current | (add) |
| Physical | |
| Weight | 3.53 oz100.0 g |
| Dimensions |
L 1.83 in W 1.12 in H 1.34 in L 46.5 mm W 28.5 mm H 34.0 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | (add) |
| Gears | Copper |
| Gear Spline/Teeth | (add) |
| Shaft Size | (add) |
| Rotation Mode | (add) |
| Rotation/Support | Single Bearing |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | (add) |
| Rotational Range | 360° |
| Mechanical Limit | (add) |
| Pulse Cycle | (add) |
| Pulse Width | (add) |
| Neutral Position | (add) |
| Dead Band | (add) |
| Refresh Rate | (add) |
| Angle Sensor | (add) |
| Control System | RS485 |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 12–12 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | (add) |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | (add) |
| Connectivity | |
| Connector | (add) |
| Wire Length | (add) |
| 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.
Performance Analysis
| Shaft Power | 6.85 W |
| Torque Density | 5.5560 oz-in/g Stronger than 77% of the 23 Digital Large servos in the database |
| Torque-to-Volume Ratio | 202.07 oz-in/in³ Denser torque than 75% of the 25 Digital Large servos in the database |
| Power Density | 2.491 W/in³ More power-dense than 83% of the 88 Digital Large servos in the database |
| Speed-to-Weight | 0.06667 (1/sec·g) Faster than 10% of the 49 Feetech servos in the database |
| Speed-Torque Trade-off | 83.34 Better balanced than 88% of the 49 Feetech servos in the database |
| Voltage Range Width | 0.0 V Wider voltage range than 3% of the 120 Digital Large servos in the database |
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