Quote Originally Posted by baccus61 View Post
Thanks for your reply.
I have bought 3 ballscrews from China and all were bent and needed straightening. This was from 2 different suppliers. What's not fair about telling the truth?
Were your screws short or relatively long?. Mine were 2x16mm x 1.25M long and one was 600mm long.
Sorry buying just 3 screws and deducing from this that all chinese ballscrews are rubbish hisn't fair.!!
I've bought lierally dozens ranging from 250mm to 1800mm in length in all sizes and in my experience they are very much ok and only had 1 screw bent and one that was machined badly.

It's no secret where I get my ballscrews from and I'm always recommending and saying they come from Chai at linearmotion bearings, I've also bought several spindles without issues thou I do recommend staying clear of the VFD's.

I agree they are cheap and you get what you pay for but they are more than good enough for DIY. Yes there will be bent screws just like there are fault spindles and VFD's but in the grand scheme of things and considering the numbers they must sell I think the overall percentage will be low.!
Saying all chinese screws are like spaghetti is incorrect, Others read this and are put off from buying from china and here in UK this can severly up the cost of building a machine.

Gud day. .:wave: