Greasing wheel bearings can get very messy very quickly, in a very kindergarten kind of way. The trick is to embrace the ooze, because greasing is the fun and easy part. The hard bit comes when ...

The unit bearing was a great engineering breakthrough. Imagine the time it once took to set up and properly adjust the front hub bearings on big Ford and Dodge 4x4 trucks on the assembly line. A unit ...

Ferdinand Porsche, it seems, was always ahead of the curve. He conceived one of the earliest electric cars back in 1900, which later added a gas engine to compensate for its primitive lead batteries.