1. Introduction
This instruction manual provides essential information for the safe and effective use of your Aexit N30 Coreless DC Motor with CCW Propeller. Please read this manual thoroughly before installation and operation to ensure proper functionality and longevity of the product. This motor is designed for use in micro quadcopters, miniature gliders, and similar small-scale DIY projects.
2. Product Overview
The Aexit N30 motor is a compact, high-speed coreless DC motor, specifically engineered for lightweight applications. It comes pre-fitted with a Counter-Clockwise (CCW) propeller, making it suitable for direct integration into various small remote-controlled aircraft or DIY projects requiring efficient thrust. Its small size and low weight contribute to minimal impact on overall vehicle mass.

Figure 2.1: Aexit N30 Coreless DC Motor with the two-vane CCW propeller securely attached to the motor shaft. The motor casing is silver-toned metal, and the propeller is black.

Figure 2.2: The Aexit N30 Coreless DC Motor and its CCW propeller shown as separate components. This view highlights the motor's output shaft and the propeller's central hub designed for attachment.

Figure 2.3: A rear perspective of the Aexit N30 Coreless DC Motor with the CCW propeller attached. This angle shows the motor's rear housing and electrical connection points.
3. Specifications
| Feature | Specification |
|---|---|
| Model | N30 |
| Rated Voltage | DC 3.7V |
| Output Speed | 30000 RPM |
| Motor Type | Coreless DC Motor |
| Propeller Type | CCW (Counter-Clockwise) |
| Propeller Vanes | 2 |
| Propeller Diameter | 75mm (3 inches) |
| Motor Shaft Diameter | 1mm (0.04 inches) |
| Main Body Size (L*W*H) | 22 x 12 x 10mm (0.86 x 0.47 x 0.4 inches) |
| Net Weight | 10g |
| Material | Plastic, Metal |
| Main Color | Black (Propeller), Silver Tone (Motor) |
| Manufacturer | Aexit |
| Country of Manufacture | CHINA |
4. Setup
- Unpacking: Carefully remove the motor and propeller from its packaging. Inspect for any visible damage.
- Propeller Attachment: The propeller is typically pre-attached. If not, align the propeller's central hole with the motor shaft and gently press it onto the shaft until it is seated firmly. Ensure the propeller is oriented correctly for CCW rotation (usually indicated by markings or blade curvature).
- Electrical Connection: Connect the motor's two wires to your power source or motor controller. Ensure correct polarity: typically, the red wire connects to the positive (+) terminal and the black wire to the negative (-) terminal. Incorrect polarity will cause the motor to spin in reverse, which is not recommended for CCW propellers designed for specific thrust directions.
- Mounting: Securely mount the motor to your application's frame using appropriate mounting hardware (not included). Ensure the motor is firmly fixed to prevent vibration and detachment during operation.
5. Operating Instructions
- Power Supply: Ensure your power supply provides a stable DC 3.7V. Using a higher voltage can damage the motor, while a lower voltage will result in reduced performance.
- Initial Test: Before full operation, perform a brief test run. Apply power and observe the motor's rotation and propeller stability. The propeller should spin smoothly without excessive wobble or noise.
- Safety Precautions:
- Keep fingers and loose objects away from the spinning propeller.
- Operate in a clear, open area to prevent accidental contact.
- Do not obstruct the motor's ventilation holes during operation.
- Continuous Operation: Avoid prolonged continuous operation at maximum load without adequate cooling, as this can lead to overheating and reduced motor lifespan.
6. Maintenance
- Cleaning: Periodically clean the motor and propeller to remove dust, dirt, or debris that may accumulate. Use a soft, dry brush or compressed air. Avoid using liquids directly on the motor.
- Inspection: Regularly inspect the propeller for cracks, chips, or deformation. A damaged propeller can cause imbalance, excessive vibration, and reduced efficiency. Replace damaged propellers immediately.
- Connections: Check electrical connections for looseness or corrosion. Ensure wires are securely attached.
- Storage: When not in use, store the motor in a dry, cool environment, away from direct sunlight and extreme temperatures.
7. Troubleshooting
| Problem | Possible Cause | Solution |
|---|---|---|
| Motor does not spin | No power; incorrect wiring; motor damage | Check power supply and connections; verify polarity; inspect motor for damage. |
| Motor spins slowly or weakly | Low voltage; high load; motor wear | Ensure 3.7V power supply; reduce load; consider motor replacement if worn. |
| Excessive vibration or noise | Damaged or unbalanced propeller; loose mounting; foreign object in motor | Inspect and replace propeller if damaged; tighten mounting screws; clean motor. |
| Motor overheats | Prolonged high load; insufficient cooling; short circuit | Reduce load or operating time; ensure proper ventilation; check for internal shorts. |
8. Warranty and Support
For warranty information or technical support regarding your Aexit N30 Coreless DC Motor, please refer to the documentation provided at the point of purchase or contact the seller directly. Keep your purchase receipt as proof of purchase.