To get the most out of ball screws, they must be protected from coolants and debris. Today’s machines tools routinely operate on a 24/7 basis with little, if any, downtime allowed for routine ...

Can a ball screw with a reasonable amount of preload but no outside thrust last forever? Eschatological considerations aside, it's not likely. The balls still have to resist the internal, preload ...

This close-up of the ball contact in a profile projector shows a gothic arch. It consists of at least two radii slightly larger than the ball used, but offset so the raceway touches the ball on both ...