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 ...

Here’s a very neat idea Yelvington Trikes presented at the 2014 AIMExpo, a bike show which is getting underway in Florida as we write. The idea is not exactly a science breakthrough, but is a “why ...

Gears come in all shapes and sizes. They are the toothy wonders that make the world go around, and they're incredibly important in the operation of a motor vehicle. There's a more specific type of ...

Caterpillar will introduce its new planetary transmission designed for medium-duty on-highway applications-- the CX28—as an integrated system with Cat C7 and C9 engines. That would make the new entry ...