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Technical Specifications
Last Updated: 2026-10-26
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KAV20.1257MG |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
222.24 oz-in
16.00 kg-cm
1.6 N-m
7.4V
201.41 oz-in
14.50 kg-cm
1.4 N-m
6.0V
180.57 oz-in
13.00 kg-cm
1.3 N-m
4.8V
138.90 oz-in
10.00 kg-cm
1.0 N-m
Average
|
| Speed |
8.4V
0.06 sec/60°
1,034.5 deg/s
172.4 RPM
7.4V
0.07 sec/60°
923.1 deg/s
153.8 RPM
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 | 2.02 oz57.2 gBelow Average |
| Dimensions |
L 1.58 in W 0.80 in H 1.04 in L 40.1 mm W 20.3 mm H 26.4 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Mechanical Limit | 180° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 4.8–8.4 V |
| 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 46% of 186 Digital Low Profile servos at 4.8V |
| Speed | Above Average Faster than 74% of 183 Digital Low Profile servos at 4.8V |
| Weight | Below Average Lighter than 29% of 304 Digital Low Profile servos |
Performance Analysis
| Shaft Power | 3.21–7.08 W |
| Power Density | 5.390 W/in³ More power-dense than 69% of 273 Digital Low Profile servos |
| Torque Density | 2.4283 oz-in/g Stronger than 33% of 185 Digital Low Profile servos |
| Torque-to-Volume Ratio | 105.66 oz-in/in³ Denser torque than 51% of 186 Digital Low Profile servos |
| Speed-to-Weight | 0.21853 (1/sec·g) Faster than 62% of 182 Digital Low Profile servos |
| Speed-Torque Trade-off | 11.11 Better balanced than 30% of 183 Digital Low Profile servos |
| Torque Gain per Volt | 16.67%/V More voltage-responsive (torque) than 58% of 164 Digital Low Profile servos |
| Speed Gain per Volt | 10.54%/V More voltage-responsive (speed) than 23% of 163 Digital Low Profile servos |
| Voltage Range Width | 3.6 V Wider voltage range than 85% of 276 Digital Low Profile servos |
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