This is the vertical "Z" axis from a CMM Coordinate Measuring Machine;

It functioned as a 3rd & 4th AXIS Linear Stage with 10" of vertical travel AND turns through 360 degrees of rotation

We do not know the manufacturer of this linear stage

It might make a good starting point for one of a kind CNC milling machine?

24" long O.A.

2.50" across square chrome shaft,

2.37" dia. at round end on right in first picture (round end is 2-7/8" long)

Outer case is about 4.6" dia. and about 10" long with adjustable gibbs on all four sides

Square shaft has 10" of vertical  travel

2 Timken tapered roller bearings/cones shown are L521949 with a L521914 outer tapered shell/cup (only one cup is included, buyer should replace these bearings)

Brass ring driver gear for rotary movement appears to be in good shape

Z axis slides smoothly

Does anybody out there recognize this? manufacturer?