Quote Originally Posted by irving2008 View Post
Well the design progresses slowly...

Been thinking about ways to mount my leadscrews and looking at bearings for the same, namely the 608ZZ that Lee sells...
If its any help to you mate i have got a few of the 608zz's with the zz's missing, there is nothing wrong with the bearings other then the zz missing on one side. I get the odd one or 2 now and again like that so i just use them for testing out ideas as i wouldnt sell them on like that.

I'v also got x4 SK12's sat in my office as well, but i'v just had a look and they wont be big enuff for the 608zz's. i have got lots of SK20's so you could bore them out to 22mm for the 608zz's to fit into?

This is how i went about supporting my leadscrew:






So yea i fitted a bearing at each end of the leadscrews, then i used nuts to preload? the rod a little.

I'v now made this as another solution also in the hope people will find them usefull:



This is a bearing rod support i have designed for other builders and myself, use's a small grubscrew to hold the bearing in place. A key feature of the design I believe to be an advantage over some of the mass produced supports is that it is flush fitting to your machines; this means you don’t need to bore big holes to fit it.
If you want some SK20's buy them from my ebay shop and let me know your ebay ID and ill send you the bearings for free. Also wait for me to send you an invoice as i can more then likly do you somthing extra on the invoice as well :).

Cheers,
Lee