Automatic shift transmissions were first introduced on a broad scale in the late 1930s, and while they were a novelty for many years, today they are very near a standard piece of equipment on most ...

Ever wonder how your transmission knows to shift gears? Why is it that when you stop, the engine doesn't die? We're here to show you how cars work. We recently looked at manual transmissions. This ...

If you’ve ever been to a Maker Faire, perused Thingiverse, or been within 100 feet of a 3D printer, you’ve probably seen a plastic set of planetary gears with a little crank or maybe a set of ...

The choice between helical and spur gears in gearboxes may seem straightforward. Go with helical gears if you want the gearbox to run as smoothly and quietly as possible. Choose spur gears when you ...

The Epicyclic gearbox was devised in 1781 (as a sun and planet gear) by James Watt for use in conjunction with his steam engines. The concept was adopted in 1902 by Sturmey and Archer for a ...

Automatic transmissions are the transmissions of choice in today's diesel realm. They've come a long way over the last decade, and are now beefier and more complex than ever before. This is an effort ...