ballnut housing and floating end ballscrew assembly

[dsc]

John, I should've attached a drawing showing the ballnut, this is something I got from Chai and it shows a flange which is 25mm deep. Perfect for my application, but looking closely at the drawing, you'll see that the 'barrel' of the nut is 24mm, which means there's 0.5mm radius difference between the outside of the round part of the nut and the flange. If I go with a housing that is 25mm deep and bore a 24mm hole in it to fit the ballnut inside, I'll be left with 0.5mm of aluminium on both sides, unless of course I make the housing deeper and I don't really have space for that, which is what triggered my question.



m_c:

1) Hmmm, care to expand on why the bolts would be hard to get in?

2) Sh*te, that's what I was afraid of. I'd happily go with 16mm ballscrew, but the ballnuts for those are 40mm deep, which means there's no way to get it in. Another idea would be a 16mm trapezoidal screw, but again I need nuts which are max 25mm deep. Bearing wise I wouldn't want to go lower than 10mm, as it's flimsy and thin at 10mm anyway (plus manufacturers like SKF / Timken, don't go below 10mm with angular contact bearings which one typical uses for ballscrews).

Regards,
dsc.