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Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 21100029 |
| Category | Robotics |
| Performance | |
| Torque |
7.4V
278.00 oz-in
20.02 kg-cm
2.0 N-m
6.0V
236.00 oz-in
16.99 kg-cm
1.7 N-m
Average
|
| Speed |
7.4V0.19 sec/60°315.8 deg/s52.6 RPM |
| Stall Current | 2.4–3 A2400–3000 mAAverage |
| Physical | |
| Weight | 1.90 oz54.0 gAbove Average |
| Shape | Boxed |
| Dimensions |
L 1.78 in W 0.97 in H 1.43 in L 45.2 mm W 24.6 mm H 36.3 mm |
| Drivetrain | |
| Motor Type | DC |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 240° |
| Angle Sensor | Potentiometer |
| Control System | UART |
| Programmable | Yes |
| Operating Modes | Position, Continuous Rotation |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Connectivity | |
| Connector | 3-pin |
| Wire Length | 200 mm7.87 in |
| Baud Rate | 115.2 Kbps |
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 | Average Stronger than 53% of 1060 Digital Standard servos at 6.0V |
| Weight | Above Average Lighter than 78% of 1880 Digital Standard servos |
| Stall Current | Average Lower draw than 56% of 570 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.71 W |
| Power Density | 1.096 W/in³ More power-dense than 20% of 1768 Digital Standard servos |
| Torque Density | 4.3704 oz-in/g Stronger than 68% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 95.58 oz-in/in³ Denser torque than 40% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.09747 (1/sec·g) |
| Speed-Torque Trade-off | 44.84 |
| Current-per-Torque Ratio | 0.0127 A/oz-in More efficient than 61% of 331 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 45% of 1560 Digital Standard servos |
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Reviews (24)
Includes 24 reviews aggregated from around the web.
There are very few reviews for this servo on the web. A Reddit user warns that LewanSoul and Hiwonder bus servos use a different control protocol from other bus servos, which can complicate mixing them with other brands.
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