🔩 SCS8UU JIUWU Linear Bearing Bushing Review

delivery was on time and packaged ok but when i put them on the shaft*mm they rocked back and forth on the shaft. I measured the shaft and it was the correct 8mm. I measured the inner diameter of the bearings and they were 8.23mm. Not good enough for 3D printers or CNC machines. They actually have bad bearings after more testing.

Great bearings for the price. They sat nicely on the 8mm shafts I bought and glided smoothly. The only downside I have is that the holes are not drilled through. Depending on how you want to mount them this might not be a problem but for my application I had to touch them which was pretty easy.

Bought these to replace my old Prusa i3 top bearings and upgrade to a 4 bearing setup. I read the negative reviews but thought I'd give it a try anyway. My mistake. I've found that 1 out of 4 missing balls in the bearing causes major stuttering issues - it's completely useless. I think with at least 3 workers I was able to get my printer working again. 2 stars because the workers work quite well.