The 8520 Mini Drone Motor is a high-speed coreless brushed DC motor specially designed for mini drones, quadcopters, RC helicopters, model aircraft, and lightweight aerial projects. Featuring an 8.5mm x 20mm coreless design, this motor delivers excellent thrust-to-weight performance, fast throttle response, and efficient operation for compact flying systems.
Widely used in Tiny Whoop, FPV racing drones, nano quadcopters, and DIY UAV projects, the 8520 motor is a popular choice for hobbyists and robotics enthusiasts seeking reliable performance in a compact package.
Key Features of the 8520 Mini Drone Motor
- Coreless Motor Technology: Faster acceleration and smoother response than traditional brushed motors
- High-Speed Performance: Supports speeds up to approximately 50,000 RPM depending on voltage and load
- Compact 8520 Size: 8.5mm diameter x 20mm length design
- Lightweight Construction: Ideal for mini and micro drone applications
- High Thrust-to-Weight Ratio: Suitable for FPV racing and agile drone movement
- Low Vibration Operation: Coreless structure reduces noise and improves stability
- Supports CW and CCW Rotation: Direction can be changed by reversing polarity
Technical Specifications
- Motor Type: Coreless Brushed DC Motor
- Model: 8520
- Motor Dimensions: 8.5mm x 20mm
- Operating Voltage: Typically 3V – 5V DC (optimized for 3.7V LiPo)
- RPM:
- Approximately 35,000-37,000 RPM at 3V
- Up to approximately 50,000 RPM at 5V
- Shaft Diameter: 1mm
- Weight: Approximately 4-5g
- Current Consumption:
- Nominal: Approximately 0.15A
- Peak: Up to 2A (short duration)
- Recommended Propeller Size: Approximately 55mm-75mm
- Battery Compatibility: 1S LiPo / Li-ion (3.7V)
How the 8520 Drone Motor Works
The 8520 motor works using a coreless brushed DC mechanism:
- Electric current energizes lightweight internal windings
- Magnetic interaction spins the rotor at very high speed
- Propellers attached to the shaft generate thrust for flight
The coreless structure reduces rotational inertia, resulting in:
- Faster throttle response
- Higher efficiency
- Better drone maneuverability
Applications for Mini Drone Motors
- Mini drones and quadcopters
- Tiny Whoop FPV drones
- RC helicopters and airplanes
- DIY UAV and flying projects
- Educational robotics and STEM kits
- Micro propulsion systems
Advantages of the 8520 Coreless Motor
- Extremely lightweight and compact
- Very high RPM output
- Quick acceleration and responsive control
- Simple brushed motor driver requirements
- Ideal for compact battery-powered systems
Usage Tips for Optimal Performance
- Best used with 3.7V LiPo batteries
- Use lightweight balanced propellers for stable flight
- Avoid continuous full-throttle operation to extend motor life
- Ensure proper airflow and cooling during use
- Match motor current requirements with suitable drivers/ESC boards
Community users note that 8520 motors can draw high current under load, so proper driver selection is important for stable drone operation.
Note: Images are for Illustration Purposes Only.
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