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Small black 40mm square cooling fan with ball bearing, 10mm thick, four mounting holes

3D Maker World

3D Maker World 24V 40mm Ball Bearing Fan 3D Printers Accessories

SKU CH-6JJX-NPHCB

A 40 × 40 × 10 mm, 24 V ball-bearing fan delivering 5.75 CFM at 6000 RPM and 24 dBA for 3D-printer cooling

  • Ball-bearing design extends service life with smooth 6000 RPM rotation
  • 24 V DC rating matches common printer boards for direct wiring
  • 40 × 40 × 10 mm footprint fits standard mounting patterns
  • 75 CFM airflow targets hot-ends and stepper drivers effectively
  • Low 24 dBA noise keeps the workshop quiet during long prints

24 V 40 mm Ball Bearing Fan

This 24 V DC cooling fan measures 40 x 40 x 10 mm and uses a ball bearing for durable operation. It is designed for 3D printer upgrades such as hot-end cooling, motor airflow or electronics ventilation.

5.75 CFM Airflow at 6000 RPM

The fan delivers 5.75 CFM (9.77 m³/h) at its nominal 6000 RPM while drawing only 0.06 A. That airflow suits small print zones and board-level cooling, but it will not move enough air for large heatsinks or high-wattage components.

3.5 mm Mounting Holes and 24 dBA Noise

Mounting holes are 3.5 mm (0.138 in) in diameter, so verify compatibility with your printer’s fan mounts before fitting. Acoustic output is rated at 24 dBA, which is quiet for a 40 mm frame but still audible in silent rooms.

How it compares

Measured against everything we stock in 3D Printing Accessories & Materials, at today’s prices. Recalculated every night.

Price $7.99
Cheaper than about 96% of the 592 comparable items (median $31.99).

Specifications

No published specifications for this item yet.

Questions about this item

Will the 40 x 40 x 10 mm size and 3.5 mm mounting holes match my existing 40 mm fan cut-out?

Yes, the fan measures 40 x 40 x 10 mm with 3.5 mm mounting holes, the standard spacing for 40 mm frames, so it fits the same cut-out as the fan you are replacing.

How can I confirm the fan is running correctly once installed?

At 24 V it should spin at 6000 RPM, move 5.75 CFM of air and run at about 24 dBA; listen for smooth ball-bearing rotation and feel steady airflow from the 40 mm frame.

Does the package include a connector or wiring harness, or must I supply my own?

The box contains the 24 V 40 mm ball-bearing fan only; any JST, Molex or bare-wire connector for your printer’s fan header must be purchased separately.

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