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 ...

In this video, the process of turning a used ball bearing into a ring using basic machining techniques on a metal lathe is demonstrated. Old ball bearings, often kept from restoration projects, can ...

Ball splines and bearings: each play a role in mechanical function, and each are unique. All types of machinery are provided with supports for rotating shafts, and that supporting device is a ...

Editor's note: An updated version of this information can be found here. Bearings are used to help reduce friction. Metal-upon-metal contact produces large amounts of friction. The friction adds to ...

Gift Article 10 Remaining As a subscriber, you have 10 articles to gift each month. Gifting allows recipients to access the article for free. No one could ever have imagined in 1913 when Leander ...

A layer of foam may be good at protecting you from simple whacks on the head, but it's not necessarily sufficient when you're cycling at speed. That's where RLS bike helmet tech comes in. It's claimed ...