{"product_id":"mellow-4010-dual-ball-bearing-fan-3d-printer-12v-24v-cooling","title":"Mellow 4010 Dual Ball Bearing Fan for 3D Printer 12V\/24V","description":"\u003ch2\u003eMellow 4010 Dual Ball Bearing Cooling Fan for 3D Printer Hotend \u0026amp; Extruder\u003c\/h2\u003e\n\u003cp\u003eKeep your 3D printer's hotend and extruder running at optimal temperatures with the \u003cstrong\u003eMellow 4010 Dual Ball Bearing Fan\u003c\/strong\u003e. Engineered for continuous 24\/7 operation, this compact 40×40×10mm fan delivers consistent, reliable airflow with minimal noise — making it an ideal upgrade for BLV, CR-10, Prusa i3 MK3, and many other popular 3D printer platforms.\u003c\/p\u003e\n\n\u003ch3\u003eWhy Choose a Dual Ball Bearing Fan?\u003c\/h3\u003e\n\u003cp\u003eUnlike standard sleeve\/oil-bearing fans that may require lubrication and have a shorter service life, the \u003cstrong\u003edual ball bearing design\u003c\/strong\u003e in this fan is rated for up to \u003cstrong\u003e50,000 hours\u003c\/strong\u003e of continuous use at 40°C — no maintenance required. There may be a slight mechanical sound during initial break-in, which naturally diminishes over time as the bearings settle in.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDual Ball Bearing\u003c\/strong\u003e – Up to 50,000-hour rated lifespan; no lubrication needed\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eUniversal Voltage\u003c\/strong\u003e – Compatible with both 12V and 24V systems\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCompact Form Factor\u003c\/strong\u003e – 40mm × 40mm × 10mm fits standard hotend and extruder mounts\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHigh Speed\u003c\/strong\u003e – 6,512 RPM ±5% for powerful, consistent airflow\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Noise\u003c\/strong\u003e – Only 23 dBA for a quieter printing environment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSimple 2-Pin Wiring\u003c\/strong\u003e – 2-pin (2.5mm) connector with 15cm wire for easy installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLow Power Draw\u003c\/strong\u003e – Rated current 0.1A (12V) \/ 0.08A (24V); 1.2W power consumption\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eLightweight\u003c\/strong\u003e – Just 15.7g, minimizing added load on your printer carriage\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Assembly Required\u003c\/strong\u003e – Ready to install straight out of the box\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003ctable\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e40mm × 40mm × 10mm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eBearing Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eDual Ball Bearing\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Voltage\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e12V \/ 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eRated Current\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e0.1A (12V) \/ 0.08A (24V)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003ePower Consumption\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e1.2W\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Speed\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e6,512 RPM ±5%\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNoise Level\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e23 dBA\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eConnector\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e2-Pin (2.5mm pitch)\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eWire Length\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15cm\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eFan Life\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e50,000 hours @ 40°C\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eNet Weight\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e15.7g\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eModel Number\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e10D4010B\u003c\/td\u003e\n\u003c\/tr\u003e\n  \u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eCompatible With\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eBLV, CR-10, Prusa i3 MK3, and more\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003ePackage Contents\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1× Mellow 4010 Dual Ball Bearing Fan\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eMade in Mainland China.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003ch3\u003eYou May Also Like\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/nitrile-work-gloves-anti-slip-full-finger-5-pair\"\u003e5-Pair Nitrile Work Gloves – Anti-Slip Full Finger Safety\u003c\/a\u003e – Ideal for handling components during installation\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/ball-end-hex-screwdriver-bit-magnetic-reduced-shank-steel\"\u003eBall End Hex Screwdriver Bit – Magnetic Reduced Shank Steel\u003c\/a\u003e – Perfect for mounting your new fan securely\u003c\/li\u003e\n  \u003cli\u003e\n\u003ca href=\"\/products\/10-pack-65mm-oscillating-multi-tool-saw-blades-high-carbon-steel\"\u003e10-Pack 65mm Oscillating Multi-Tool Saw Blades | Carbon Steel\u003c\/a\u003e – Useful for workshop modifications and builds\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eLearn more: \u003ca href=\"https:\/\/www.osha.gov\/hand-power-tools\" target=\"_blank\" rel=\"noopener\"\u003eOSHA guidance on hand and power tools\u003c\/a\u003e\u003c\/p\u003e\n\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4\u003eQ: Is the Mellow 4010 fan compatible with both 12V and 24V 3D printers?\u003c\/h4\u003e\n\u003cp\u003eA: Yes! The Mellow 4010 dual ball bearing fan supports both 12V and 24V operating voltages, making it versatile and compatible with a wide range of 3D printers including BLV, CR-10, Prusa i3 MK3, and more. Simply match the fan to your printer's power rail.\u003c\/p\u003e\n\u003ch4\u003eQ: Why is a dual ball bearing fan better than a standard sleeve bearing fan?\u003c\/h4\u003e\n\u003cp\u003eA: Dual ball bearing fans are rated for significantly longer lifespans — up to 50,000 hours — and can run continuously 24\/7 without requiring lubrication. Standard sleeve\/oil bearing fans typically need maintenance and may last less than a year under heavy use. The dual ball bearing design in this Mellow 4010 fan makes it a more durable, long-term investment for your 3D printer.\u003c\/p\u003e\n\u003ch4\u003eQ: What connector type does this fan use, and how long is the wire?\u003c\/h4\u003e\n\u003cp\u003eA: The fan uses a standard 2-pin connector with a 2.5mm pitch and comes with a 15cm wire length, making it straightforward to connect to most 3D printer control boards and hotend assemblies.\u003c\/p\u003e\n\u003ch4\u003eQ: Is the fan noisy during operation?\u003c\/h4\u003e\n\u003cp\u003eA: The Mellow 4010 fan operates at just 23 dBA, which is considered quiet for a high-speed 40mm fan running at 6,512 RPM. You may hear a subtle mechanical sound during the initial break-in period, but this typically decreases as the bearings settle in.\u003c\/p\u003e\n\u003c!-- production-packaging-notice --\u003e\n\u003ch3\u003eProduction \u0026amp; Packaging Notice\u003c\/h3\u003e\n\u003cp\u003eTo maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.\u003c\/p\u003e\n\u003cscript type=\"application\/ld+json\"\u003e{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"Is the Mellow 4010 fan compatible with both 12V and 24V 3D printers?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes! 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