In a wheel drive planetary gearbox, the sun gear drives the surrounding planetary gears which are fixed to a carrier. When the sun gear is driven, the planet gears rotate the outer ring gear. The wheels can be mounted over the housing of the gearbox. ... Wheel drive planetary gears can deliver up to 332,000Nm torque.

How do planetary axles work?

Rockwell-Standard Planetary Axles permit the mesh with teeth of the planet spur gears. The bevel or hypoid gearing of the carrier, and the axle planet spur gears rotate on planet pins which are shafts to carry only a nominal torsional load while mounted in a spider.

What is a planetary gearbox used for?

Generally, planetary gears are used as speed reducers. They are used to slow down motors and increase the torque. Torque is the working power of the machine.