Bicycles rely on smooth-turning, low-friction bearings to allow them to roll forward with as little human effort as possible. We can’t create frictionless bearings – even Shimano hasn’t cracked ...

Ball bearings—the familiar pieces that use balls to maintain the separation between the bearing races—have any number of uses. But the ones we're used to seeing in cars and other machines tend to be ...

What do clocks, skateboards, and industrial machinery have in common? They all rely on bearings to maintain their smooth rotational movements. However, to achieve reliability, they must be maintained ...

Unground ball bearings may be wholly unground, ground in part, or wholly ground, but are characterized by precision levels less than ABEC 1. They are available in the traditional ball bearing forms to ...