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Technical Specifications
Last Updated: 2026-09-16
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | ACE8128 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V173.60 oz-in12.50 kg-cm1.2 N-m |
| Speed |
6.0V0.13 sec/60°461.5 deg/s76.9 RPM |
| Physical | |
| Weight | 2.33 oz66.0 gAverage |
| Dimensions |
L 1.646 in W 0.81 in H 1.56 in L 41.8 mm W 20.6 mm H 39.6 mm |
| Case Material | Plastic / Aluminum |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Single Bearing |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 90° |
| Mechanical Limit | 180° |
| Electrical & Environment | |
| Operating Voltage | 4.8–6 V |
| Water Rating | Water Resistant |
| Connectivity | |
| Connector | JR (Universal) |
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
| Weight | Average Lighter than 42% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.47 W |
| Power Density | 1.187 W/in³ More power-dense than 23% of 1759 Digital Standard servos |
| Torque Density | 2.6303 oz-in/g |
| Torque-to-Volume Ratio | 83.47 oz-in/in³ |
| Speed-to-Weight | 0.11655 (1/sec·g) |
| Speed-Torque Trade-off | 22.57 |
| Voltage Range Width | 1.2 V Wider voltage range than 24% of 1539 Digital Standard servos |
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Reviews (1)
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Nuno Ribeiro
May 27, 2012Application(s): Ciclic colective servos on raptor 50
Comments: From five years,surviving a few midle and five almost total lost crashes,just only whith a broken horn,is the most resistent,precise and fast servo i ever tried