Make vacuum pre loaded spherical air bearings without special tools

A new technique to make graphite air bearings without precision tooling. I show how to make spherical, cylindrical, and flat bearings that are also vacuum preloaded, meaning the bearing is captive. David Preiss excellent video: 10mm thick graphite sheet: 2 ball bearing: Small 1032 hose barb fitting: Linear bearing shaft: Fusion360 CAD files: 12x18 granite surface plate: Applied Science on Patreon: