40MM Red Four-Blade Propeller 1.95MM Hole

The 40MM Red Four-Blade Propeller is a small red propeller, 40 mm in diameter, with four blades and a 1.95 mm centre hole. The hole is a little smaller than a 2 mm shaft, so it press-fits tightly onto small DC motors such as the 130 size. Its compact size suits mini fans, small air boats and science models where a larger propeller would not fit.

40MM Red Four-Blade Propeller Specifications

• Diameter: 40 mm
• Blades: 4
• Colour: red
• Shaft hole: 1.95 mm, press fit on 2 mm shafts
• Fits: small DC motors with a 2 mm shaft, such as 130 motors

40MM Red Four-Blade Propeller Applications

• Mini handheld and desk fans
• Small air boats and propeller cars
• Airflow and wind energy demonstrations
• STEM kits and school science projects

What's in the Box

• 1 × 40 mm red four-blade propeller

Tip: Support the back of the motor while pressing the propeller onto the shaft so the shaft does not bend. Keep fingers clear when the motor runs, and swap the motor wires if the air blows the wrong way.

Orders placed before 14:00 are ready for pickup the same day. Delivery across Lebanon usually takes 1–3 working days.