I got this large (to me) screw and nut in a package deal a couple weeks ago. I don't have any use for it, so I'd like to identify it to see if it's worth selling. Any idea what this was for? I'm curious if it's just a generic ball screw, or if it fits a particular machine. Let me know if there's any other info I can provide.

Here's what I know:

The major diameter of the screw is ~1.56", and the threaded portion is about 32" long.

Here are some shots of the screw. This end has a hex on the end, a couple diameter changes, and a threaded section:



The other end:



And some markings on the nut housing:





Thanks!