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Technical Specifications
Last Updated: 2026-07-10
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Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | FUTM0138 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
7.4V
133.00 oz-in
9.58 kg-cm
0.9 N-m
6.6V
122.00 oz-in
8.78 kg-cm
0.9 N-m
6.0V
108.00 oz-in
7.78 kg-cm
0.8 N-m
|
| Speed |
7.4V
0.09 sec/60°
666.7 deg/s
111.1 RPM
6.6V
0.10 sec/60°
600.0 deg/s
100.0 RPM
6.0V
0.11 sec/60°
545.5 deg/s
90.9 RPM
|
| Running Current | (add) |
| Stall Current | (add) |
| Physical | |
| Weight | 1.87 oz53.0 g |
| Dimensions |
L 1.87 in W 1.06 in H 1.00 in L 47.5 mm W 27.0 mm H 25.4 mm |
| Case Material | (add) |
| Drivetrain | |
| Motor Type | Brushless |
| Motor Drive | (add) |
| Gears | Metal |
| Gear Spline/Teeth | (add) |
| Shaft Size | (add) |
| Rotation Mode | (add) |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | (add) |
| Rotational Range | (add) |
| Mechanical Limit | (add) |
| Pulse Cycle | (add) |
| Pulse Width | (add) |
| Neutral Position | (add) |
| Dead Band | (add) |
| Refresh Rate | (add) |
| Angle Sensor | (add) |
| Control System | SBUS2 |
| Programmable | Yes |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | (add) |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | (add) |
| Connectivity | |
| Connector | Futaba J |
| Wire Length | (add) |
| Origin | |
| Country of Origin | (add) |
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.
Performance Analysis
| Shaft Power | 1.82–2.73 W |
| Torque Density | 2.0377 oz-in/g Stronger than 18% of the 96 Digital Low Profile servos in the database |
| Torque-to-Volume Ratio | 54.33 oz-in/in³ Denser torque than 11% of the 96 Digital Low Profile servos in the database |
| Power Density | 1.375 W/in³ More power-dense than 16% of the 188 Digital Low Profile servos in the database |
| Speed-to-Weight | 0.17153 (1/sec·g) Faster than 25% of the 96 Digital Low Profile servos in the database |
| Speed-Torque Trade-off | 11.88 Better balanced than 42% of the 94 Digital Low Profile servos in the database |
| Torque Gain per Volt | 16.53%/V More voltage-responsive (torque) than 49% of the 75 Digital Low Profile servos in the database |
| Speed Gain per Volt | 15.87%/V More voltage-responsive (speed) than 62% of the 79 Digital Low Profile servos in the database |
| Voltage Range Width | 1.4 V Wider voltage range than 29% of the 165 Digital Low Profile servos in the database |
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