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Technical Specifications
Last Updated: 2026-07-28
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | JRPSR581 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
7.4V127.80 oz-in9.20 kg-cm0.9 N-m |
| Speed |
7.4V0.11 sec/60°545.5 deg/s90.9 RPM |
| Physical | |
| Weight | 1.50 oz42.5 gTop 10% |
| Dimensions |
L 1.52 in W 0.75 in H 1.50 in L 38.6 mm W 19.0 mm H 38.1 mm |
| Drivetrain | |
| Gear Spline/Teeth | 23 T estimate |
| Control & Signal | |
| Modulation | Digital |
| 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 | Top 10% Lighter than 93% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 2.15 W |
| Power Density | 1.256 W/in³ More power-dense than 24% of 1759 Digital Standard servos |
| Torque Density | 3.0056 oz-in/g |
| Torque-to-Volume Ratio | 74.74 oz-in/in³ |
| Speed-to-Weight | 0.21380 (1/sec·g) |
| Speed-Torque Trade-off | 14.06 |
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