So I bought some ballscrews over the summer-they are just too large. New, Class C5 ground Tsubaki ballscrews, 42 and 43 inches long. I've got them listed on CNCzone for 275$, I'll list them here for 250$ each.
There are three screws, two identical in length and one third that is about an inch longer. They are new with some shelf marks, but no damage, and are wrapped in plastic shrink wrap. The ballnuts are the double-nut with the ground spacer fit to remove any backlash, and are both rebuildable and adjustable.
They're about 50mm diameter-I will take detailed measurements if someone wants them. They're *probably* replacement screws for Okuma milling machines. That's the only reference I can find to the part numbers marked on the screws.
Like I mentioned, I'll sell them for 250$ each plus shipping. They'll fit on a standard pallet, and weigh about 150lbs total palletized weight.
I'm located in Kentucky, around 70 miles due north of Nashville TN, and can arrange freight if needed.