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Technical Specifications
Last Updated: 2026-10-25
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KM4409MD |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
131.26 oz-in
9.45 kg-cm
0.9 N-m
4.8V
120.15 oz-in
8.65 kg-cm
0.8 N-m
Below Average
|
| Speed |
6.0V
0.11 sec/60°
545.5 deg/s
90.9 RPM
4.8V
0.13 sec/60°
461.5 deg/s
76.9 RPM
Below Average
|
| Physical | |
| Weight | 1.50 oz42.7 gAbove Average |
| Dimensions |
L 1.61 in W 0.80 in H 1.16 in L 40.9 mm W 20.3 mm H 29.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushed |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Neutral Position | 1520 µs |
| Dead Band | 2 µs |
| Refresh Rate | 330 Hz |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Water Rating | None |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 265 mm10.43 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 | Below Average Stronger than 31% of 186 Digital Low Profile servos at 4.8V |
| Speed | Below Average Faster than 19% of 183 Digital Low Profile servos at 4.8V |
| Weight | Above Average Lighter than 89% of 304 Digital Low Profile servos |
Performance Analysis
| Shaft Power | 1.71–2.21 W |
| Power Density | 1.477 W/in³ More power-dense than 11% of 273 Digital Low Profile servos |
| Torque Density | 2.8171 oz-in/g Stronger than 45% of 185 Digital Low Profile servos |
| Torque-to-Volume Ratio | 80.42 oz-in/in³ Denser torque than 27% of 186 Digital Low Profile servos |
| Speed-to-Weight | 0.18036 (1/sec·g) Faster than 38% of 182 Digital Low Profile servos |
| Speed-Torque Trade-off | 15.62 Better balanced than 55% of 183 Digital Low Profile servos |
| Torque Gain per Volt | 7.71%/V More voltage-responsive (torque) than 6% of 164 Digital Low Profile servos |
| Speed Gain per Volt | 15.17%/V More voltage-responsive (speed) than 52% of 163 Digital Low Profile servos |
| Voltage Range Width | 1.2 V Wider voltage range than 8% of 276 Digital Low Profile servos |
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