As well as having the knowledge to strip, re-bearing and refurbishment of many difference spindles, we also have testing equipment to be able to test the spindles, prior to returning them to be refitted. Or even better, we could first evaluate the machine, to see if it is the spindle at fault. Then if the spindle needs removing, we can remove it, refurbish it and return to refit it. 

Likewise, to assess a machine, to remove, refurbish and refit a ballscrew, this reduces the down time of your machine.