56mm Yellow Four-Blade Propeller with 1.95mm

This bright yellow propeller is a simple, low-cost way to turn a small DC motor into a fan or thruster. The 1.95mm hole is very slightly smaller than a 2mm shaft, so the propeller grips the motor tightly without glue or a separate adapter.

The four blades move more air than a two-blade propeller of the same size, which makes it a good fit for cooling fans, air-propelled boats and cars, and classroom experiments on airflow and thrust.

Key Features

• 56mm diameter, 4 blades. Strong airflow from a compact size.
• 1.95mm hole. A snug press-fit on 2mm motor shafts.
• Lightweight plastic. It puts little load on small motors.
• Bright yellow colour. It’s easy to see and looks good in student projects.
• Easy to fit. Just push it onto the motor shaft.

Specifications

Compatible Motors

• 130-size DC motors (3–6V, 2mm shaft)
• Other small DC motors with a 2mm shaft

How to Fit

1. Line up the propeller hole with the motor shaft.
2. Push firmly and evenly until the propeller sits securely.
3. Test at low speed first to check it is secure and doesn’t wobble.

Safety tip: Keep fingers clear of the propeller while the motor is running, and supervise young learners during experiments.

Applications

• Mini handheld and desk fans
• Air boats and wind-powered cars
• Hovercraft and air-propelled vehicles
• School STEM and science fair projects
• Airflow and thrust experiments
• Simple RC and DIY builds

Package Includes

• 1 × 56mm Yellow 4-Blade Propeller (1.95mm hole)