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Technical Specifications
Last Updated: 2026-10-24
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | 902-0139-000 |
| Category | Robotics |
| Performance | |
| Torque |
14.8V
1,656.72 oz-in
119.30 kg-cm
11.7 N-m
12.0V
1,401.84 oz-in
100.94 kg-cm
9.9 N-m
11.1V
1,302.72 oz-in
93.81 kg-cm
9.2 N-m
|
| Speed |
14.8V
0.22 sec/60°
276.5 deg/s
46.1 RPM
12.0V
0.26 sec/60°
234.4 deg/s
39.1 RPM
11.1V
0.28 sec/60°
215.8 deg/s
36.0 RPM
|
| Running Current |
12.0V0.070 A70 mA |
| Stall Current | 4.5–5.9 A4500–5900 mAAverage |
| Radial Load | 40.0 N |
| Physical | |
| Weight | 5.82 oz165.0 gAbove Average |
| Shape | Boxed |
| Dimensions |
L 2.303 in W 1.319 in H 1.732 in L 58.5 mm W 33.5 mm H 44.0 mm |
| Case Material | Metal / Plastic |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Ratio | 272.5:1 |
| Rotation Mode | Multi-turn |
| Rotation/Support | Dual Bearings |
| Backlash | 0.250° |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 360° |
| Angle Sensor | Contactless Absolute Encoder |
| Control System | RS-485 / PWM |
| Programmable | Yes |
| Resolution | 4,096 pulse/rev |
| MCU | ARM CORTEX-M3 |
| Operating Modes | Current, Velocity, Position, Extended Position (Multi-turn), Current-based Position, PWM (Voltage) |
| Electrical & Environment | |
| Operating Voltage | 10–14.8 V |
| Temperature | -5–80 °C23–176 °F |
| Idle Current | 0.040 A40 mA |
| Connectivity | |
| Connector | JST |
| Baud Rate | 9.6 Kbps–4.5 Mbps |
| Origin | |
| Country of Origin | Korea |
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 | Above Average Lighter than 75% of 168 Digital Giant servos |
| Stall Current | Average Lower draw than 50% of 108 Digital Giant servos |
Performance Analysis
| Shaft Power | 8.66–14.12 W |
| Power Density | 2.683 W/in³ More power-dense than 77% of 136 Digital Giant servos |
| Torque Density | 7.8953 oz-in/g |
| Torque-to-Volume Ratio | 247.61 oz-in/in³ |
| Speed-to-Weight | 0.02180 (1/sec·g) |
| Speed-Torque Trade-off | 362.20 |
| Current-per-Torque Ratio | 0.0045 A/oz-in |
| Idle-to-Running Current Ratio | 0.571 |
| No-Load vs Stall Current Spread | 84.29 |
| Voltage Range Width | 4.8 V Wider voltage range than 56% of 160 Digital Giant servos |
| Backlash-to-Range Ratio | 0.00069 Tighter backlash than 56% of 49 Digital Giant servos |
Notes
High-performance smart actuator with coreless Maxon motor, contactless absolute encoder, and RS-485 communication. Features multiple control modes and an aluminum/plastic hybrid case.
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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 Robotis forum user reports a recurring overload hardware error that only clears after a power cycle.
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