Originally Posted by
AUKURAS
So…
A year ago I did an upgrade for my CNC with a new ball screw system. I bought it from the supplier in the UK, it was “made in EU ball screw”. I have paid quite of money.. Later on I found out that is just a china imported AliExpress stuff… At that point the website of that shop was down, they were out of business. No support there… The only thing I know - it’s 1210 ball screw, with 2.5mm bearing balls. No additional information.
Few days ago I took apart one of them. The nut was moving friction-free on the screw, but it was dirty all around, just wanted to clean it. Did some research on how to repack this thing. I think I did it right. Took apart, cleaned it, greased it, put bearings back, I used some tube to mount it on the screw - wuolia! Now it does not move freely. I has friction and feels just not right. So I went with a process maybe 10 times again each time - the same result.
This 1210 is really unpopular size. Ball nut in AliExpress cost ~€40 plus shipping (while 1604 in the same shop - €13)
I have tried to find a high quality one here in the EU - with no success..
Any thoughts?
Cheers!