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Technical Specifications
Last Updated: 2026-10-26
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KST-1226 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
485.80 oz-in
34.98 kg-cm
3.4 N-m
7.4V
416.40 oz-in
29.98 kg-cm
2.9 N-m
6.0V
347.00 oz-in
24.99 kg-cm
2.5 N-m
Above Average
|
| Speed |
8.4V
0.11 sec/60°
545.5 deg/s
90.9 RPM
7.4V
0.13 sec/60°
461.5 deg/s
76.9 RPM
6.0V
0.15 sec/60°
400.0 deg/s
66.7 RPM
Average
|
| Physical | |
| Weight | 2.61 oz74.0 gBelow Average |
| Dimensions |
L 1.591 in W 0.787 in H 1.496 in L 40.4 mm W 20.0 mm H 38.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 200° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1520 µs |
| Refresh Rate | 333 Hz |
| Angle Sensor | Hall Effect |
| Control System | PWM |
| Programmable | Yes |
| Signal Voltage | 3.3–5.0V |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -20–65 °C-4–149 °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 | Above Average Stronger than 76% of 1060 Digital Standard servos at 6.0V |
| Speed | Average Faster than 42% of 1045 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 23% of 1880 Digital Standard servos |
Performance Analysis
| Shaft Power | 4.28–8.17 W |
| Power Density | 4.358 W/in³ More power-dense than 74% of 1768 Digital Standard servos |
| Torque Density | 4.6892 oz-in/g Stronger than 73% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 185.19 oz-in/in³ Denser torque than 78% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.09009 (1/sec·g) Faster than 25% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 52.05 Better balanced than 77% of 1034 Digital Standard servos |
| Torque Gain per Volt | 16.67%/V More voltage-responsive (torque) than 58% of 873 Digital Standard servos |
| Speed Gain per Volt | 15.16%/V More voltage-responsive (speed) than 47% of 874 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 57% of 1560 Digital Standard servos |
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Reviews (1)
Includes 1 review aggregated from around the web.
There are very few reviews for this servo on the web. A German forum member reports jerky servo movement with a Jeti receiver, which may be a setup issue.
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