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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 | 902-0121-000 |
| Category | Robotics |
| Performance | |
| Torque |
14.8V
31.60 oz-in
2.28 kg-cm
0.2 N-m
12.0V
25.50 oz-in
1.84 kg-cm
0.2 N-m
11.1V
22.40 oz-in
1.61 kg-cm
0.2 N-m
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| Speed |
14.8V
0.16 sec/60°
372.7 deg/s
62.1 RPM
12.0V
0.20 sec/60°
300.0 deg/s
50.0 RPM
11.1V
0.22 sec/60°
276.5 deg/s
46.1 RPM
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| Running Current | (add) |
| Stall Current | 1200–1300 A1200000–1300000 mABelow Average |
| Rated Output Power | (add) |
| Radial Load | 40.0 N |
| Physical | |
| Weight | 2.89 oz82.0 gAverage |
| Shape | Boxed |
| Dimensions |
L 1.83 in W 1.12 in H 1.34 in L 46.5 mm W 28.5 mm H 34.0 mm |
| Case Material | Metal / Plastic |
| Drivetrain | |
| Motor Type | Coreless |
| Motor Drive | (add) |
| Gears | Metal |
| Gear Ratio | 212.6:1 |
| Gear Spline/Teeth | (add) |
| Shaft Size | (add) |
| Rotation Mode | (add) |
| Rotation/Support | (add) |
| Backlash | 15.000° |
| Control & Signal | |
| Modulation | Digital |
| Direction | (add) |
| Rotational Range | 360° |
| Mechanical Limit | (add) |
| Pulse Cycle | (add) |
| Pulse Width | (add) |
| Neutral Position | (add) |
| Dead Band | (add) |
| Refresh Rate | (add) |
| 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, Current-based Position, PWM |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 10–14.8 V |
| Power Source | (add) |
| Regulator Type | (add) |
| Temperature | -5–80 °C23–176 °F |
| Water Rating | (add) |
| Certification | (add) |
| Idle Current | 40.000 A40,000 mA |
| Connectivity | |
| Connector | (add) |
| Wire Length | (add) |
| Baud Rate | 9.6 Kbps–4.5 Mbps |
| 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.
Class Comparison
| Weight | Average Lighter than 47% of the 139 Digital Large servos |
| Stall Current | Below Average Lower draw than 26% of the 81 Digital Large servos |
Performance Analysis
| Torque Density | 0.2732 oz-in/g |
| Torque-to-Volume Ratio | 8.14 oz-in/in³ |
| Speed-to-Weight | 0.05620 (1/sec·g) |
| Speed-Torque Trade-off | 4.86 |
| Current-per-Torque Ratio | 58.0357 A/oz-in |
| Voltage Range Width | 4.8 V Wider voltage range than 68% of the 121 Digital Large servos in the database |
| Backlash-to-Range Ratio | 0.04167 Tighter backlash than 45% of the 45 Dynamixel servos in the database |
Notes
High-durability robotic servo featuring a coreless Maxon motor, full metal gears, and aluminum housing. Supports advanced control modes including current and PWM control with a 12-bit absolute encoder.
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