Ever wondered what's inside a tiny planetary gear motor? In this video, I take one apart – D‑shaft, retaining clip (removed without circlip pliers!), sun gear, planet gears, internal ring gear, and the carrier. I calculate the reduction ratio: 9‑tooth sun, 45‑tooth ring → 6:1. Also, check out the bronze sleeve bearings and why they work just fine for light loads. Finally, I put it all back together. Quick, clear, and satisfying. If you like teardowns, hit that like button and subscribe!