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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | SPMS904 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
6.0V496.00 oz-in35.72 kg-cm3.5 N-mBelow Average |
| Speed |
6.0V0.22 sec/60°277.8 deg/s46.3 RPMBelow Average |
| Physical | |
| Dimensions |
L 2.33 in W 1.14 in H 2.16 in L 59.2 mm W 29.0 mm H 54.9 mm |
| Drivetrain | |
| Gears | Metal |
| Gear Spline/Teeth | 15 T |
| Control & Signal | |
| Modulation | Digital |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 6–6 V |
| Water Rating | Waterproof |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Origin | |
| Country of Origin | China |
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 | Below Average Stronger than 28% of 93 Digital Giant servos at 6.0V |
| Speed | Below Average Faster than 27% of 90 Digital Giant servos at 6.0V |
Performance Analysis
| Shaft Power | 4.25 W |
| Power Density | 0.740 W/in³ More power-dense than 21% of 132 Digital Giant servos |
| Torque-to-Volume Ratio | 86.45 oz-in/in³ Denser torque than 35% of 93 Digital Giant servos |
| Speed-Torque Trade-off | 107.13 Better balanced than 39% of 89 Digital Giant servos |
| Voltage Range Width | 0.0 V Wider voltage range than 7% of 160 Digital Giant servos |
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