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Technical Specifications
Last Updated: 2026-10-26
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | BLS-73AWB |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
1,026.47 oz-in
73.91 kg-cm
7.2 N-m
7.4V
933.41 oz-in
67.21 kg-cm
6.6 N-m
6.0V
773.67 oz-in
55.71 kg-cm
5.5 N-m
|
| Speed |
8.4V
0.08 sec/60°
750.0 deg/s
125.0 RPM
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
|
| Physical | |
| Weight | 4.30 oz121.8 gBelow Average |
| Dimensions |
L 1.909 in W 0.984 in H 1.961 in L 48.5 mm W 25.0 mm H 49.8 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Gears | Metal / Steel |
| Gear Spline/Teeth | 25 T |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Pulse Cycle | 2.5 ms |
| Neutral Position | 1500 µs |
| Dead Band | 1 µs |
| Refresh Rate | 400 Hz |
| Control System | PWM |
| Electrical & Environment | |
| Operating Voltage | 4.5–8.5 V |
| Power Source | 2S Li-Po / 2S Li-Fe |
| Water Rating | IP67 |
| Connectivity | |
| Connector | JR (Universal) estimate |
| Wire Length | 300 mm11.81 in |
| Origin | |
| Country of Origin | Taiwan |
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 | Below Average Lighter than 15% of 145 Digital Large servos |
Performance Analysis
| Shaft Power | 11.92–23.72 W |
| Power Density | 6.440 W/in³ 1st-highest power density of 112 Digital Large servos |
| Torque Density | 6.3520 oz-in/g |
| Torque-to-Volume Ratio | 210.03 oz-in/in³ |
| Speed-to-Weight | 0.06842 (1/sec·g) |
| Speed-Torque Trade-off | 92.84 |
| Voltage Range Width | 4.0 V Wider voltage range than 61% of 124 Digital Large servos |
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