Thanks guys.
This is great. I understand it now. Basically, I am adjusting the ballscrew tighter by the tab nut and tab washer!
Attachment 16723
Printable View
Thanks guys.
This is great. I understand it now. Basically, I am adjusting the ballscrew tighter by the tab nut and tab washer!
Attachment 16723
Not really, you're adjusting the preload on the pair of angular contact bearings in the green block that fixes the ball screw to the table.
...the blue ones in the illustration below. I was trying to figure that out.
Attachment 16724
the drawing doesn't really represent the action, but that's where it is.
You cannot adjust the ball screw bearings, they are what they are.
When you have an angular contact bearing in your hand the middle wobbles back and forth.
So what your almost doing when you have a pair is pulling the middles together to get rid of that play.
The spacer should be on the inside race so it shows the lock nut squeezing the outer races together....if that's how its assembled? I thought they normally had the lock nut on the inner race with the ballscrew also on the inner race and the outer races locked in position?
The tab nut tightens the inner race of the bearings not the outter