LORDWORLD
LORDWORLD 40mm Blower Fan 24V 4020 Dual Ball Bearing 2-Pack
Two 40 mm 24 V dual-ball-bearing blower fans deliver 3.5 CFM airflow at 33.4 dBA for 3D printer hotends and compact electronics cooling
- Compact 40 × 40 × 20 mm blower fits tight 3D-printer hotends
- Dual ball bearings rated for 50000-hour continuous operation
- 24 V DC, 0.09 A draw delivers 3.5 CFM at 6500 RPM
- Low 33.4 dBA noise suits always-on small enclosures
- Two fans with 300 mm XH2.54 leads ready for Raspberry Pi or router cooling
24V 40mm Blower Fan 2-Pack
This pack contains two 40mm by 20mm brushless blower fans rated for 24V DC operation. They are designed for confined spaces such as 3D printer extruders, hotends, small PC cases, routers, Raspberry Pi boards, TV boxes and VR headsets. Each unit uses an XH2.54 connector with a 300mm cable for straightforward wiring. The dual ball bearing construction targets continuous daily use.
Sustained Load Behaviour
Rated at 0.09A and 0.96W, the fans spin at 6500 RPM to deliver 3.5 CFM airflow and 8.34 mmH2O static pressure while producing 33.4 dBA of noise. Dual ball bearings are specified for a 50000-hour service life, supporting 24-hour operation without the wear typical of sleeve alternatives. The blower layout directs air through a focused outlet, maintaining pressure in tight ducting or heatsink channels during prolonged prints or enclosure cooling.
Replaces Larger or Worn Axial Fans
The 4020 form factor fits where standard 40mm axial fans cannot, making it a direct upgrade for cramped printer carriages or legacy equipment with failed blowers. Builders needing higher static pressure than a same-size axial fan provides will benefit from the blower design. It is not suited for applications requiring larger airflow volumes, higher voltage inputs or alternative connector types such as JST or Molex.
Highlights
- Compact 40 × 40 × 20 mm blower fits tight 3D-printer hotends
- Dual ball bearings rated for 50000-hour continuous operation
- 24 V DC, 0.09 A draw delivers 3.5 CFM at 6500 RPM
- Low 33.4 dBA noise suits always-on small enclosures
- Two fans with 300 mm XH2.54 leads ready for Raspberry Pi or router cooling
Specifications
| Brand | LORDWORLD |
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Questions about this item
How loud is the 33.4 dBA noise rating when these fans run 24 hours a day?
At 33.4 dBA each fan is quiet enough for continuous operation; the dual ball bearings are rated for 50000 hours of nonstop use.
What connector and cable length do I need to plug these 24V fans into my 3D printer board?
Each fan ships with an XH 2.54 connector on a 300 mm (11.8 in) lead, ready for standard 24 V fan headers.
Will the 40 mm x 20 mm frame and 3.5 CFM airflow fit the hotend duct I already use on my printer?
The 4020 blower footprint matches common 40 mm ducts, and the 3.5 CFM at 8.34 mmH₂O pressure suits typical hotend cooling.
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