Wheel HubAssembly Kit

Anyone actually tried mounting them properly with something like genuine igus polymer bearings? So annoying seeing so many impressions and recommendations based on faulty use... Can't tell if it didn't perform or if it was the user that didn't perform.

So after hearing more and more about noisy (perhaps) bearings on the Mk4 I looked around for potential replacements. Polymer bearings got me interested. Very silent, no grease, no issues with dust but relatively pricy. A full set of genuine sleeved bearings is about $80, while a knockoff without sleeves is like a tenth of that. Edit: I don't have my MK4 yet but assumed two bearings for Z and X repectively, then three for Y? Which ends up being about $80 when ordered from igus themselves.

Wheel hubassembly

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All because they try to use naked polymer bearings where a sleeve is required... They are meant to go into a tightened shell or for something like a prusa y axis bed, an aluminium sleeve. They are designed to be too large without the uniform compression.

wheelhub中文

So looked up if others have used them or their impressions and found plenty, only that people are mounting them wrong and are having the expected issues with mounting them wrong. Some YouTuber switched his on his bed for polymer bearings and then tensioned the naked bearings like it was a regular bearing. Ended up with either too loose or binding and then took them off. Then plenty of reddit threads of people reporting that they were too loose or that they couldn't tighten them.