Core Jobs of the Sun Gear

▸Power Input Hub

Connects to the engine, motor, or drive shaft—it’s where the main spinning force enters the gearset.
Think of it like the spark plug firing up the system.

▸Drives the Planet Gears

Its teeth mesh with surrounding planet gears, making them spin like moons orbiting a sun.
Rotates the planet carrier (the frame holding planets), which sends power to the output.

▸Speed or Torque Booster

When locked, it forces planets to "walk" around it against the ring gear—multiplying grunt (like low gear for climbing hills).
When spun freely, it lets planets roll faster—boosting speed (like highway cruising).

▸Direction Changer

Spinning it while holding the ring gear makes planets reverse the output rotation—no extra gears needed.

▸Load Distributor

Splits power across multiple planet gears, reducing strain on any single part → lasts longer under heavy use.