Aspas ventilador / Screws / helical spirals for fans

Helical blades / propellers

for 40cm fans

and shaft with chamfer (the one in the example)

with some spacers of different sizes in case of chafing

Includes axle with pin (the most common)

I include another shaft with 5 mm more clearance for the pinned shaft in case when placing the propellers they rub against the guard.

I made it for a fan that broke a propeller.

and thanks to this design I avoided having to buy another fan.

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Blades / helical spirals for 40cm fans and shaft with chamfer (like the one in the example)

with some spacers of different sizes in case it rubs.

Includes shaft with pin (the most common). I include another shaft with 5 mm more separation for the shaft with pins in case the blades rub against the guard when placed.

I made it for a fan that had a blade broken and thanks to this design, I avoided having to buy another fan.