Planetary gears mesh with the sun and ring gears at several locations. This means more teeth are engaged to drive the load than in conventional gear-and-pinion meshes.

Planetary gears, also known as epicyclic gears, were developed by the Greeks more than 2,000 years ago and were initially intended to help predict the movements of planets in the solar system.

There was a time when print-in-place moving parts were a curiosity, but [Tomek] shows that things are now at a point where a hand-cranked turbine blower with integrated planetary gears can be ...

When the planet gears of the intermediate system are held reactionary, the ring gear of the its system moves in a direction opposite that of its sun gear. This is where reverse motion begins.

Planetary gears convert high-speed, low-torque inputs to low-speed, high-torque outputs. Some clearance is needed for a planetary gearhead to work effectively.

A planetary gear set is comprised of an outer gear ring that's called the ring gear. Inside, you have a sun gear that has a fixed point in the center and a planet gear (or gears) that rotate about ...

SEW-EURODRIVE is reducing lead times for its high-torque, compact P2.e drives for heavy industry customers in the U.S.

The planetary gear set, also known as an epicyclic gear set, is the brain of automatic transmissions, allowing the system to smoothly upshift and downshift while you're driving.

The planetary gear train is a mechanical system in which the gears are connected with a set of bands and clutches. When the driver changes gears, ...

Throughout the 1900s, cars with manual transmissions slowly gave way to those with the ability to shift between gears automatically. Early automatic transmissions with names like Hydra-Matic ...

On a regular crankset, the chainrings turn in a 1:1 ratio with the crank arms. In the case of the Ultime Ti crankset from MG Tech, however, a planetary gear system actually turns the chainrings ...