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Technical Specifications
Last Updated: 2026-10-22
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | BLS-HV7146MG |
| Category | Hobby |
| Performance | |
| Torque |
7.4V
663.94 oz-in
47.81 kg-cm
4.7 N-m
6.0V
522.26 oz-in
37.61 kg-cm
3.7 N-m
Top 10%
|
| Speed |
7.4V
0.10 sec/60°
600.0 deg/s
100.0 RPM
6.0V
0.12 sec/60°
500.0 deg/s
83.3 RPM
Average
|
| Physical | |
| Weight | 2.50 oz71.0 gBelow Average |
| Dimensions |
L 1.594 in W 0.807 in H 1.417 in L 40.5 mm W 20.5 mm H 36.0 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 180° |
| Dead Band | 1 µs |
| Refresh Rate | 330 Hz |
| Control System | Digital (Brushless) |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–7.4 V |
| Certification | CE | ROHS | FCC |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 265 mm10.43 in |
| 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 | Top 10% Stronger than 93% of 1060 Digital Standard servos at 6.0V |
| Speed | Average Faster than 64% of 1045 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 31% of 1880 Digital Standard servos |
Performance Analysis
| Shaft Power | 8.05–12.28 W |
| Power Density | 6.735 W/in³ More power-dense than 90% of 1768 Digital Standard servos |
| Torque Density | 7.3558 oz-in/g Stronger than 95% of 1053 Digital Standard servos |
| Torque-to-Volume Ratio | 286.52 oz-in/in³ Denser torque than 94% of 1058 Digital Standard servos |
| Speed-to-Weight | 0.11737 (1/sec·g) Faster than 53% of 1038 Digital Standard servos |
| Speed-Torque Trade-off | 62.67 Better balanced than 86% of 1034 Digital Standard servos |
| Torque Gain per Volt | 19.38%/V More voltage-responsive (torque) than 75% of 873 Digital Standard servos |
| Speed Gain per Volt | 14.29%/V More voltage-responsive (speed) than 42% of 874 Digital Standard servos |
| Voltage Range Width | 1.4 V Wider voltage range than 29% of 1560 Digital Standard servos |
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Reviews (1)
Includes 1 review aggregated from around the web.
There are few reviews for this servo on the web. Reddit users who have used many JX servos in their cars call them pretty reliable. One says the BLS-HV7146MG has worked fine in his crawler, and another has run a similar JX servo in a Wraith for over a year without problems.
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