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Technical Specifications
Last Updated: 2026-10-10
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
Above Average
|
| 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
0.600 A
600 mA
6.0V
0.450 A
450 mA
Below Average
|
| 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 | 180° |
| 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 |
| 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 | Above Average Stronger than 90% of 1043 Digital Standard servos at 6.0V |
| Speed | Average Faster than 60% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 20% of 1902 Digital Standard servos |
| Running Current | Below Average Lower draw than 28% of 173 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 80% of 1759 Digital Standard servos |
| Torque Density | 6.4807 oz-in/g Stronger than 90% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 246.47 oz-in/in³ Denser torque than 90% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.11111 (1/sec·g) Faster than 46% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 58.33 Better balanced than 84% of 1031 Digital Standard servos |
| Torque Gain per Volt | 11.90%/V More voltage-responsive (torque) than 27% of 850 Digital Standard servos |
| Speed Gain per Volt | 3.79%/V More voltage-responsive (speed) than 2% of 871 Digital Standard servos |
| Voltage Range Width | 2.4 V Wider voltage range than 49% of 1539 Digital Standard servos |
| Dead-Band-to-Pulse-Width Ratio | 0.0005 Finer dead band than 96% of 468 Digital Standard servos |
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