In simple planetary gear sets, what revolves around the sun gear like planets in our solar system?

In simple planetary gear sets, what revolves around the sun gear like planets in our solar system?

• A. Pinions
• B. Ring gears
• C. Carriers
• D. Epicyclical gears

Answer: (A)

In a simple planetary gear set, the sun gear sits at the center and the planet gears orbit around it while also spinning on their own axes. Those orbiting gears are commonly called pinions, which is why this term best fits the idea of what revolves around the sun gear like planets do. The ring gear is the outer gear that meshes with the planet gears, and the carrier holds the planet gears and moves with them. Epicyclic gears is the overall name for this arrangement, not the specific component that revolves.

In a simple planetary gear set, the sun gear sits at the center and the planet gears orbit around it while also spinning on their own axes. Those orbiting gears are commonly called pinions, which is why this term best fits the idea of what revolves around the sun gear like planets do. The ring gear is the outer gear that meshes with the planet gears, and the carrier holds the planet gears and moves with them. Epicyclic gears is the overall name for this arrangement, not the specific component that revolves.