A new continuously variable transmission (CVT) mechanism has been developed that is mechanical, frictionless, and self-adjustable. Unlike traditional CVTs, this new mechanism does not rely on friction, leading to improved energy transfer efficiency and durability. The key goal was to create a CVT that is cost-effective, reliable, and capable of achieving a wide gear ratio. The researchers achieved this by using a ratcheting mechanism with a free shaft, similar to a cam-based CVT.