How do I tell if this is a ground or rolled ball screw, My first thought was it is a ground ball screw but then I noticed the groove on the land which I have seen on a lot of rolled ball screws.
All I know for sure about the ball screw is it is at least 12 yrs old.
If it is a rolled ball screw is it worth sending out to be ground, if that is even possible with a rolled screw.