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Technical Specifications
Last Updated: 2026-10-10
Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | M25BHW |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
347.18 oz-in
25.00 kg-cm
2.5 N-m
6.0V
249.97 oz-in
18.00 kg-cm
1.8 N-m
Average
|
| Speed |
8.4V
0.04 sec/60°
1,500.0 deg/s
250.0 RPM
6.0V
0.06 sec/60°
1,000.0 deg/s
166.7 RPM
Top 10%
|
| Running Current |
8.4V
6.000 A
6,000 mA
6.0V
4.500 A
4,500 mA
Bottom 10%
|
| Stall Current | 5–7 A5000–7000 mABelow 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 | Steel |
| Gear Spline/Teeth | 25 T |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Control & Signal | |
| Modulation | Digital |
| Direction | Clockwise |
| 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 |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | IP67 |
| 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 | Average Stronger than 57% of 1043 Digital Standard servos at 6.0V |
| Speed | Top 10% Faster than 92% of 1041 Digital Standard servos at 6.0V |
| Weight | Below Average Lighter than 20% of 1902 Digital Standard servos |
| Running Current | Bottom 10% Lower draw than 5% of 173 Digital Standard servos at 6.0V |
| Stall Current | Below Average Lower draw than 12% of 539 Digital Standard servos |
Performance Analysis
| Shaft Power | 7.70–16.05 W |
| Power Density | 8.138 W/in³ More power-dense than 94% of 1759 Digital Standard servos |
| Torque Density | 3.3329 oz-in/g Stronger than 48% of 1036 Digital Standard servos |
| Torque-to-Volume Ratio | 126.76 oz-in/in³ Denser torque than 55% of 1042 Digital Standard servos |
| Speed-to-Weight | 0.22222 (1/sec·g) Faster than 88% of 1033 Digital Standard servos |
| Speed-Torque Trade-off | 15.00 Better balanced than 25% of 1031 Digital Standard servos |
| Current-per-Torque Ratio | 0.0280 A/oz-in More efficient than 17% of 315 Digital Standard servos |
| No-Load vs Stall Current Spread | 1.56 Narrower current spread than 88% of 132 Digital Standard servos |
| Torque Gain per Volt | 16.20%/V More voltage-responsive (torque) than 54% of 850 Digital Standard servos |
| Speed Gain per Volt | 20.83%/V More voltage-responsive (speed) than 81% 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 95% of 468 Digital Standard servos |
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