4-Blade Propeller for DC Motor – 2mm Shaft

This DC motor propeller fan is a compact 4-blade plastic fan designed for small brushed DC motors with a 2 mm shaft. It provides efficient airflow when used as a cooling fan or can function as a turbine for basic energy generation experiments. The lightweight design ensures smooth rotation with minimal load on the motor, maintaining stable performance. It is compatible with common small motors such as RF-300 and similar 3V–5V DC motors. Ideal for educational projects, DIY electronics, and prototyping applications.

This propeller is compatible with the following motors:

- Small DC motor RF-300

- Small Brushed DC Motor (5V 16500 RPM)

- Small Brushed DC Motor (5V 15000 RPM)

- Small DC motor with alligator clips

Features

- 4-blade propeller design for improved airflow

- 2 mm shaft compatibility with small DC motors

- Lightweight plastic construction for low load

- Optimized blade angle for efficient rotation

- Suitable for cooling and airflow applications

- Can be used for basic wind energy experiments

- Easy press-fit installation on motor shaft

- Stable operation with minimal vibration

- Compatible with RF-300 and similar motors

- Suitable for 3V to 5V DC motor range

- Compact size for small projects

- Durable plastic material for repeated use

Specifications

- Material: Plastic

- Number of Blades: 4

- Shaft Hole Diameter: 2mm

- Compatible Motor Voltage: 3V – 5V DC

- Compatibility: RF-300 and similar DC motors

- Mounting Type: Press-fit

- Blade Type: Curved aerodynamic design

- Application Type: Cooling / Airflow / Turbine experiments

- Weight: ~2g

- Color: Varies (commonly black or orange)

- Rotation Type: Bidirectional (depends on motor polarity)

- Operating Environment: Indoor use

Links

Fan blade for DC motor

- Mini fan propeller (for 2mm shafts)

Tutorials

Amazing multi type dc motor propeller testing | dc motor fan || MTC 2.0