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Technical Specifications
Last Updated: 2026-10-25
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | KAV20.12S57MG |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
277.80 oz-in
20.00 kg-cm
2.0 N-m
7.4V
270.86 oz-in
19.50 kg-cm
1.9 N-m
6.0V
236.13 oz-in
17.00 kg-cm
1.7 N-m
4.8V
194.46 oz-in
14.00 kg-cm
1.4 N-m
Above 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
4.8V
0.11 sec/60°
571.4 deg/s
95.2 RPM
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° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 4 µs |
| Control System | PWM |
| 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 | Above Average Stronger than 71% of 186 Digital Low Profile servos at 4.8V |
| Speed | Average Faster than 43% of 183 Digital Low Profile servos at 4.8V |
| Weight | Below Average Lighter than 28% of 304 Digital Low Profile servos |
Performance Analysis
| Shaft Power | 3.42–7.34 W |
| Power Density | 5.582 W/in³ More power-dense than 72% of 273 Digital Low Profile servos |
| Torque Density | 3.3997 oz-in/g Stronger than 65% of 185 Digital Low Profile servos |
| Torque-to-Volume Ratio | 147.93 oz-in/in³ Denser torque than 71% of 186 Digital Low Profile servos |
| Speed-to-Weight | 0.16650 (1/sec·g) Faster than 25% of 182 Digital Low Profile servos |
| Speed-Torque Trade-off | 20.42 Better balanced than 72% of 183 Digital Low Profile servos |
| Torque Gain per Volt | 11.90%/V More voltage-responsive (torque) than 24% of 164 Digital Low Profile servos |
| Speed Gain per Volt | 13.89%/V More voltage-responsive (speed) than 45% of 163 Digital Low Profile servos |
| Voltage Range Width | 3.6 V Wider voltage range than 84% of 276 Digital Low Profile servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0020 Finer dead band than 27% of 79 Digital Low Profile servos |
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