Review on 🖨️ CCTREE Printer Plastic Bearing for Creality: High-Quality Solution for Smooth and Precise Printing by Lokesh Das

I bought these to replace my stock Ender 3 wheels Two out of six of them had an issue where the bearing core could move in the outer black wheel. Two of these were installed on my X axis and they seem fine. After installing them on my Y axis, I was unable to level my bed. There can be strong vibrations or waves as the nozzle approaches (and sometimes scrapes) the bed. I've tried flipping them, changing their position, etc. but to no avail. As I slid the Y axis back and forth with my hand, I could feel its "grit" and could feel where the bed stuck to the big waves. After a day or two trying to get them to work I bought a different brand of wheels. I installed them and had no problems.