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Technical Specifications
Last Updated: 2026-10-23
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-0408 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
347.00 oz-in
24.99 kg-cm
2.5 N-m
7.4V
305.36 oz-in
21.99 kg-cm
2.2 N-m
6.0V
249.84 oz-in
17.99 kg-cm
1.8 N-m
Average
|
| Speed |
8.4V
0.07 sec/60°
857.1 deg/s
142.9 RPM
7.4V
0.08 sec/60°
750.0 deg/s
125.0 RPM
6.0V
0.09 sec/60°
666.7 deg/s
111.1 RPM
Above Average
|
| Physical | |
| Weight | 2.54 oz72.0 gBelow Average |
| Dimensions |
L 1.575 in W 0.787 in H 1.575 in L 40.0 mm W 20.0 mm H 40.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation Mode | Positional |
| Rotation/Support | 6 |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 100° |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1520 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3.3–5V |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -10–65 °C14–149 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
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 57% of 1060 Digital Standard servos at 6.0V |
| Speed | Above Average Faster than 84% of 1045 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 29% of 1880 Digital Standard servos |
Performance Analysis
| Shaft Power | 5.13–9.17 W |
| Power Density | 4.694 W/in³ More power-dense than 77% of 1768 Digital Standard servos |
| Torque Density | 3.4700 oz-in/g Stronger than 51% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 127.94 oz-in/in³ Denser torque than 57% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.15432 (1/sec·g) Faster than 75% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 22.48 Better balanced than 40% of 1034 Digital Standard servos |
| Torque Gain per Volt | 16.20%/V More voltage-responsive (torque) than 54% of 873 Digital Standard servos |
| Speed Gain per Volt | 11.90%/V More voltage-responsive (speed) than 28% of 874 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 58% of 1560 Digital Standard servos |
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Reviews (2)
Includes 2 reviews aggregated from around the web.
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