They lie at the heart of every fidget spinner and in every motor that runs our lives, from the steppers in a 3D printer to the hundreds in every car engine. They can be as simple as a lubricated ...

Miniature ball bearings, whether constructed from engineered metals, ceramics, or synthetic materials, are extremely precise devices. In many cases, their geometric tolerances are measured in ...

Better materials and sealing technologies meet the challenges of modern machine tools and coolants. Bigger, faster machine tools obviously put greater demands on spindle bearings. Most spindles use a ...

So I was checking out one of my favorite crackpot sites and the contention was made that if you take two steel balls (I think it was 1" steel bearings) and spin one at 27000rpms and launch them both ...