ballscrew to stepper shaft alignment

[JAZZCNC]

. I didnt know the ballscrew bearings/units were a weak area but I do now. I could just get better quality bearings and swap out the generic ones.

There is nothing wrong with the BK-type housing, it's the correct component for the job, it's just that the cheap ones come with crappy bearings. So just replace the bearings with angular contact bearings.

This will be much simpler than making plates and fitting bearings into them because if you don't bore the opposing bearing pockets perfectly concentric to each other then you'll introduce more issues.!