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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-mAbove Average |
| Speed |
4.8V1.55 sec/60°38.7 deg/s6.5 RPMBottom 10% |
| Physical | |
| Weight | 1.60 oz45.4 gBelow Average |
| 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 | Above Average Stronger than 87% of 229 Low Profile servos at 4.8V |
| Speed | Bottom 10% Faster than 0% of 227 Low Profile servos at 4.8V |
| Weight | Below Average Lighter than 12% of 53 Analog Low Profile servos |
Performance Analysis
| Shaft Power | 0.31 W |
| Power Density | 0.219 W/in³ More power-dense than 8% of 53 Analog Low Profile servos |
| Torque Density | 5.7269 oz-in/g 5th-highest torque density of 43 JR servos |
| Torque-to-Volume Ratio | 183.64 oz-in/in³ 5th-highest torque-to-volume ratio of 43 JR servos |
| Speed-to-Weight | 0.01421 (1/sec·g) Faster than 0% of 43 JR servos |
| Speed-Torque Trade-off | 403.10 1st-highest speed-torque trade-off of 43 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