The ability to operate consistently at higher speeds is why motion system designers often specify ball screws over lead screws. However, ball screws have speed limitations of their own. Understanding ...

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 ...

Translating rotary motion to linear motion is a basic part of mechatronic design. Take a look at the nearest 3D-printer or CNC router — at least the Cartesian variety — and you’ll see some mechanism ...

While the ball bearing might be among Leonardo Da Vinci's less celebrated inventions, it's arguably one of his most important. Though it was initially designed as part of his failed helicopter ...

If the utility of an invention were somehow derived from the genius of its inventor, it would be pardonable that so many sources trace the idea for the ball bearing to a 1497 drawing by Leonardo da ...