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Technical Specifications
Last Updated: 2026-10-08
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-0918 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
277.60 oz-in
19.99 kg-cm
2.0 N-m
7.4V
235.96 oz-in
16.99 kg-cm
1.7 N-m
6.0V
194.32 oz-in
13.99 kg-cm
1.4 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 | 2.47 oz70.0 gBelow Average |
| Dimensions |
L 1.595 in W 0.787 in H 1.496 in L 40.5 mm W 20.0 mm H 38.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T estimate |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 100° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1500 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -10–65 °C14–149 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 330 mm12.99 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 | Average Stronger than 43% of 1043 Digital Standard servos at 6.0V |
| Speed | Above Average Faster than 83% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 34% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 3.99–7.33 W |
| Power Density | 3.904 W/in³ More power-dense than 70% of 1759 Digital Standard servos |
| Torque Density | 2.7760 oz-in/g Stronger than 38% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 103.45 oz-in/in³ Denser torque than 43% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.15873 (1/sec·g) Faster than 75% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 17.49 Better balanced than 30% of 1031 Digital Standard servos |
| Torque Gain per Volt | 17.86%/V More voltage-responsive (torque) than 69% of 850 Digital Standard servos |
| Speed Gain per Volt | 11.90%/V More voltage-responsive (speed) than 29% of 871 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 58% of 1539 Digital Standard servos |
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