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Technical Specifications
Last Updated: 2026-10-09
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | MKS-HBL388 |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
944.30 oz-in
68.00 kg-cm
6.7 N-m
7.4V
833.20 oz-in
60.00 kg-cm
5.9 N-m
6.0V
694.30 oz-in
50.00 kg-cm
4.9 N-m
|
| Speed |
8.4V
0.14 sec/60°
428.6 deg/s
71.4 RPM
7.4V
0.16 sec/60°
375.0 deg/s
62.5 RPM
6.0V
0.19 sec/60°
315.8 deg/s
52.6 RPM
|
| Physical | |
| Weight | 3.29 oz93.3 gBottom 10% |
| Dimensions |
L 1.693 in W 0.866 in H 1.561 in L 43.0 mm W 22.0 mm H 39.6 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Pulse Cycle | 3.003 ms |
| Neutral Position | 1520 µs |
| Dead Band | 8 µs |
| Refresh Rate | 333 Hz |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 5–8.4 V |
| Temperature | -10–60 °C14–140 °F |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 290 mm11.42 in |
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 | Bottom 10% Lighter than 0% of 1902 Digital Standard servos |
Performance Analysis
| Shaft Power | 6.76–12.47 W |
| Power Density | 5.449 W/in³ More power-dense than 81% of 1759 Digital Standard servos |
| Torque Density | 7.4416 oz-in/g |
| Torque-to-Volume Ratio | 303.35 oz-in/in³ |
| Speed-to-Weight | 0.05641 (1/sec·g) |
| Speed-Torque Trade-off | 131.91 |
| Voltage Range Width | 3.4 V Wider voltage range than 72% of 1539 Digital Standard servos |
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