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Technical Specifications
Last Updated: 2026-10-25
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | M45BHW |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
624.92 oz-in
45.00 kg-cm
4.4 N-m
6.0V
486.05 oz-in
35.00 kg-cm
3.4 N-m
Top 10%
|
| Speed |
8.4V
0.11 sec/60°
545.5 deg/s
90.9 RPM
6.0V
0.12 sec/60°
500.0 deg/s
83.3 RPM
Average
|
| Running Current |
8.4V
7.000 A
7,000 mA
6.0V
5.000 A
5,000 mA
Bottom 10%
|
| Physical | |
| Weight | 2.65 oz75.0 gBelow Average |
| Dimensions |
L 1.57 in W 0.79 in H 1.59 in L 39.9 mm W 20.1 mm H 40.4 mm |
| Case Material | Aluminum |
| Drivetrain | |
| Motor Type | Brushless |
| Motor Drive | MOS |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Rotational Range | 60° |
| Mechanical Limit | 180° |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 1 µs |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | Yes |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | Waterproof |
| Idle Current | 0.600 A600 mA |
| Connectivity | |
| Connector | JR (Universal) |
| Wire Length | 300 mm11.81 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 90% of 1055 Digital Standard servos at 6.0V |
| Speed | Average Faster than 63% of 1038 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 21% of 1872 Digital Standard servos |
| Running Current | Bottom 10% Lower draw than 4% of 226 Digital Standard servos at 6.0V |
Performance Analysis
| Shaft Power | 7.49–10.50 W |
| Power Density | 5.327 W/in³ More power-dense than 81% of 1762 Digital Standard servos |
| Torque Density | 6.4807 oz-in/g Stronger than 91% of 1048 Digital Standard servos |
| Torque-to-Volume Ratio | 246.47 oz-in/in³ Denser torque than 91% of 1053 Digital Standard servos |
| Speed-to-Weight | 0.11111 (1/sec·g) Faster than 48% of 1031 Digital Standard servos |
| Speed-Torque Trade-off | 58.33 Better balanced than 84% of 1029 Digital Standard servos |
| Idle-to-Running Current Ratio | 0.120 Lower idle draw than 31% of 167 Digital Standard servos |
| Torque Gain per Volt | 11.90%/V More voltage-responsive (torque) than 27% of 868 Digital Standard servos |
| Speed Gain per Volt | 3.79%/V More voltage-responsive (speed) than 1% of 868 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 49% of 1552 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0005 Finer dead band than 95% of 501 Digital Standard servos |
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