4020 DC Brushless Blower Fan, 12V or 24V. 40x20mm Dual Ball Bearing
This item ships from China and shipping times FXXXING STUPID. expect a minimum of 20-41 days waiting time and money back if it hasn't arrived by 90 days. Sorry, these are shitty terms for shitty times but we can't do any better.
Free shipping (20 to 90 days) to Australia, the USA, and most other countries
why pay extra for dual ball bearing fans? Because if the hot end fan shits its self mid-print it can lead to horrible things like major clogging of the hot end and ruin a long print. These fans do cost a little more but will last a lot longer than sleeve type fans and make less noise at high speeds. Dual ball bearing fans also fail very gradually rather than die a sudden death like a sleeve bearing. This slow death makes the inevitable failure much more predictable allowing you plenty of time to replace them before things go pearshaped.
Dual ball bearing fans offer;
- quiet operation
- long lifespan
- ability to position in any orientation
- slow predictable failure rather than sudden death
- excellent cooling properties
Blower Fan 12V 24V 40mm Turbine Turbo Fan 40x20mm 4020 DC Brushless Cooling Dual Ball Bearing for 3D Printer Extruder Hotend