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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-0818 |
| Category | Hobby |
| Performance | |
| Torque |
6.0V
41.64 oz-in
3.00 kg-cm
0.3 N-m
4.8V
34.70 oz-in
2.50 kg-cm
0.2 N-m
Above Average
|
| Speed |
6.0V
0.07 sec/60°
857.1 deg/s
142.9 RPM
4.8V
0.08 sec/60°
750.0 deg/s
125.0 RPM
Above Average
|
| Physical | |
| Weight | 0.58 oz16.5 gBelow Average |
| Dimensions |
L 0.906 in W 0.472 in H 0.965 in L 23.0 mm W 12.0 mm H 24.5 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Steel |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 120° |
| Pulse Cycle | 3.003 ms |
| Pulse Width | 900-2100 µs |
| Neutral Position | 1520 µs |
| Dead Band | 2 µs |
| Refresh Rate | 333 Hz |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Connectivity | |
| Connector | JR (Universal) estimate |
| 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 | Above Average Stronger than 66% of 328 Digital Micro servos at 4.8V |
| Speed | Above Average Faster than 81% of 328 Digital Micro servos at 4.8V |
| Weight | Below Average Lighter than 22% of 620 Digital Micro servos |
Performance Analysis
| Shaft Power | 0.80–1.10 W |
| Power Density | 2.666 W/in³ More power-dense than 60% of 590 Digital Micro servos |
| Torque Density | 2.1030 oz-in/g Stronger than 37% of 327 Digital Micro servos |
| Torque-to-Volume Ratio | 84.10 oz-in/in³ Denser torque than 61% of 327 Digital Micro servos |
| Speed-to-Weight | 0.75758 (1/sec·g) Faster than 54% of 327 Digital Micro servos |
| Speed-Torque Trade-off | 2.78 Better balanced than 42% of 327 Digital Micro servos |
| Torque Gain per Volt | 16.67%/V More voltage-responsive (torque) than 47% of 268 Digital Micro servos |
| Speed Gain per Volt | 11.90%/V More voltage-responsive (speed) than 17% of 273 Digital Micro servos |
| Voltage Range Width | 1.2 V Wider voltage range than 20% of 511 Digital Micro servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0017 Finer dead band than 38% of 189 Digital Micro servos |
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