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Technical Specifications
Last Updated: 2026-09-14
|
Identity
Performance
Physical
Drivetrain
Control & Signal
Electrical & Environment
Connectivity
Origin
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Weight
Dimensions
Torque
Speed
Current
Temp
Wire
| Identity | |
| Brand |  |
| Product Number | M45CHW |
| Category | Hobby |
| Performance | |
| Torque |
8.4V
624.93 oz-in
45.00 kg-cm
4.4 N-m
6.0V
486.06 oz-in
35.00 kg-cm
3.4 N-m
|
| 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
|
| Running Current |
8.4V
7.000 A
7,000 mA
6.0V
5.000 A
5,000 mA
|
| Stall Current | 4.5–6.8 A4500–6800 mA |
| Physical | |
| Weight | 2.65 oz75.0 g |
| 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 | Coreless |
| Motor Drive | MOS |
| Gears | Metal |
| Gear Spline/Teeth | 25 T |
| Shaft Size | (add) |
| Rotation Mode | Positional |
| Rotation/Support | Dual Bearings |
| Backlash | (add) |
| Control & Signal | |
| Modulation | Digital |
| Direction | Counterclockwise |
| Rotational Range | 60° |
| Mechanical Limit | 180° |
| Pulse Cycle | (add) |
| Pulse Width | 500-2500 µs |
| Neutral Position | 1500 µs |
| Dead Band | 2 µs |
| Refresh Rate | (add) |
| Angle Sensor | Potentiometer |
| Control System | PWM |
| Programmable | (add) |
| Signal Voltage | (add) |
| Electrical & Environment | |
| Operating Voltage | 6–8.4 V |
| Power Source | (add) |
| Regulator Type | Direct |
| Temperature | -20–60 °C-4–140 °F |
| Water Rating | IP67 |
| Certification | (add) |
| 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.
Performance Analysis
| Shaft Power | 7.49–10.50 W |
| Torque Density | 6.4808 oz-in/g Stronger than 90% of the 832 Digital Standard servos in the database |
| Torque-to-Volume Ratio | 246.47 oz-in/in³ Denser torque than 90% of the 843 Digital Standard servos in the database |
| Power Density | 5.327 W/in³ More power-dense than 81% of the 1644 Digital Standard servos in the database |
| Speed-to-Weight | 0.11111 (1/sec·g) Faster than 44% of the 821 Digital Standard servos in the database |
| Speed-Torque Trade-off | 58.33 Better balanced than 84% of the 826 Digital Standard servos in the database |
| Current-per-Torque Ratio | 0.0140 A/oz-in More efficient than 57% of the 231 Digital Standard servos in the database |
| Idle-to-Running Current Ratio | 0.120 Lower idle draw than 35% of the 27 Digital Standard servos in the database |
| No-Load vs Stall Current Spread | 1.36 Narrower current spread than 83% of the 49 Digital Standard servos in the database |
| Torque Gain per Volt | 11.90%/V More voltage-responsive (torque) than 26% of the 673 Digital Standard servos in the database |
| Speed Gain per Volt | 3.79%/V More voltage-responsive (speed) than 2% of the 687 Digital Standard servos in the database |
| Voltage Range Width | 2.4 V Wider voltage range than 49% of the 1269 Digital Standard servos in the database |
| Dead-Band-to-Pulse-Width Ratio | 0.0010 Finer dead band than 84% of the 327 Digital Standard servos in the database |
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