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Technical Specifications
Last Updated: 2026-09-14
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | JRPS791 |
| Category | Hobby |
| Discontinued | Yes |
| Performance | |
| Torque |
4.8V260.00 oz-in18.72 kg-cm1.8 N-mTop 10% |
| Speed |
4.8V1.55 sec/60°38.7 deg/s6.5 RPMBottom 10% |
| Physical | |
| Weight | 1.60 oz45.4 gBottom 10% |
| Dimensions |
L 1.73 in W 0.88 in H 0.93 in L 43.9 mm W 22.4 mm H 23.6 mm |
| Drivetrain | |
| Motor Type | Coreless |
| Gears | Metal |
| Gear Spline/Teeth | 23 T estimate |
| Rotation/Support | Bushing |
| Control & Signal | |
| Modulation | Analog |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | No |
| Electrical & Environment | |
| Operating Voltage | 4.8–4.8 V |
| Power Source | External |
| Regulator Type | Direct |
| 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
| Torque | Top 10% Stronger than 92% of 177 Low Profile servos at 4.8V |
| Speed | Bottom 10% Faster than 1% of 175 Low Profile servos at 4.8V |
| Weight | Bottom 10% Lighter than 6% of 52 Analog Low Profile servos |
Performance Analysis
| Shaft Power | 0.31 W |
| Power Density | 0.219 W/in³ More power-dense than 10% of 50 Analog Low Profile servos |
| Torque Density | 5.7269 oz-in/g Stronger than 86% of 44 JR servos |
| Torque-to-Volume Ratio | 183.64 oz-in/in³ Denser torque than 86% of 44 JR servos |
| Speed-to-Weight | 0.01421 (1/sec·g) Faster than 0% of 45 JR servos |
| Speed-Torque Trade-off | 403.10 1st-highest speed-torque trade-off of 44 JR servos |
| Voltage Range Width | 0.0 V Wider voltage range than 0% of 26 Analog Low Profile servos |
Notes
This servo only operates on 4.8V.
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Reviews (1)
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jerry mak
April 24, 2018Application(s): retract servo
Comments: works sometimes when new but quits after a short time I know I bought 4 of them. their no good