24V Centrifugal Fan - Ball Bearing - 50mm x 50mm

The static pressure of 11.78 in is a typo. According to this page (https://szdcfan.en.made-in-china.com/product/gyanktvDAscF/China-50mm-50X50X15-12V-Blower-Fan-DC-Brushless-Centrifugal-Fan-Low-Noise-Blower-24V-2-Inch.html) CFM is 4.11 and static pressure is 30mm or about 1.18in. These types of blowers are usually around 1in or lower. This is still a great choice in terms of static pressure.

Replacement for an identical unit whose BB bearings failed causing imbalance, excessive hot end vibrations and noise, affecting print quality! This item proved perfectly balanced with low noise even at max speed. Great output volume and pressure! Recommeded, Inexpensive, keep a spare for when bearings do wear out.

Hi Spool3d. You can remove my previous review. I changed the Fan PWM frequency in my DUET config and the high-pitched sound went away.

This fan brand is definitely great for the price. We run our printers around the clock and typically the fans are among the first items to go. These fans having dual ball bearings seem to hold up months of running in the harsh environment of hovering over a 100c bed plate in somewhat dusty commercial space. I give this 4 stars just because out of maybe 20+ that I have order of this brand, not one of them was nicely balanced so they will vibrate and that causes some noise. We have incorporated silicone fan isolators to compensate for this. If you cant do that in your application, it might be worthwhile to buy a nicely balanced fan. One last note, if you clean these out with some compressed air, dont let the fan blade spin, it will explode!

Ender 3 had me pulling the pins out of the connector to reverse them, and the cable isn't long enough, but otherwise appears to work well. Does not work *at all* if polarity is wrong.

Great and fairly quiet 5015 blower fans. Ordered 2 and have more in my cart for my next order to upgrade another printer.

Powerful little fan. Used it in a custom part cooler for my Anycubic Chiron. For normal printing I have it a 40%. I have it set to 100% for bridging and made a huge difference in bridging quality.

Great fan and good price for it too! If you're getting this fan for a parts cooler on your printer then don't forget to PID tune your extruder with the fan running otherwise you'll have all kinds of weird problems!

Installed this on the "Petsfang v2" for my Tevo Tornado. Works perfectly. Only used it a few times so far.

Bought two of these, no issues... using them for two 24V cooling fans on an X5S. Working great!