Planetary Gear Set Trainer

Description

Most planetary sets found in the field are sealed or fixed for one specific job. This unit is built specifically for the classroom, allowing students to test, observe, and explain rather than just memorize a chart.

• Easy Tooth Counting – We’ve marked one tooth on every member—the ring gear, the planets, and the sun gear. It makes counting teeth for ratio calculations fast and accurate.
• Versatility – Every single member (sun, ring, and carrier) is independently pinned. This means you can lock down any part to simulate a “held” member instantly.
• Predict and Prove – Students can physically see how the same gear set can produce multiple forward speeds or even reverse rotation depending on what they drive and what they hold.
• Real World Context – It’s the perfect tool to bridge the gap between a classroom desk and the complex systems found in automatic transmissions, final drives, or even the cordless drill in their toolbox.