Aokin 3D Printer POM Wheel Plastic Pulley Linear Bearing for Creality Ender 3, Ender 3 Pro, Ender 3 V2, CR-10, CR-10S Series 3D Printer, 10 Pcs

Great products

My z axis was getting wobbly on my ender 3 and these fixed the problem.

Use these for 3D printer and laser biulds works great

Took me a while to figure out why my first layers came out wavy looking and uneven. Changed out the wheels and now Im printing flat again. Good quality and good value.

I should have payed more for bearings, these things cut corners from the low quality grease to the inconsistent build quality to the sheer amount of friction in these even when warmed up. In the future I hope you can get in contact with your supplier and test the quality of a batch before someone else ends up halfway through a 3d printer rebuild only to find the old worn out bearings roll better than these. Sorry but now both our days are ruined.

My printers original wheels had developed flat spots from having the eccentric nuts over-tightened, and were seriously messing up layer height consistency and positioning accuracy. These replacements were an exact fit and immediately fixed my problem. I just used 6 for the Z axis and kept 4 as spares.

Finally pulley wheels that are round! Too many of the other ones Ive tried have been oblong and absolutely ruined my prints. With these, the first 3 I pulled out of the bag and installed were perfect and my printer is resurrected. I havent tried the rest yet, but the last batch I had from another brand were ALL bad. Do recommend.

Replaced two of the originals that had developed a flat spot on the wheels (due to a failure on my part to adjust at the onset). There was a clunking sound as the wheels hit the flat spots. I replaced them easily with two of these news ones, and the sound went away. Did have to re-level the bed, but that was expected. Have been working well since the installation.