Motors and gear trains with micrometer dimensions and powered by light are fabricated using semiconductor lithography and ...

Rack and pinions are the other precision linear drive. In concept, they're one of the oldest and most basic power transmission technologies. They consist simply of a pinion gear meshing with a toothed ...

Gears fill the cases of automotive transmissions and are widely used in aerospace applications, but these simple tools are deceptively complex to manufacture. We thought it would be good to take a ...