What would happen if there was no concept of gears?

If there were no concept of gears, robots would not be able to transmit motion and power effectively from one component to another. The amplification of force and adjustment of speed and torque would not be possible, which would affect robotic joints, mobility, and lifting mechanisms. Robots would face difficulty in achieving smooth, accurate movement, precise control, and the ability to carry heavy loads. Applications such as robotic mobility, lifting mechanisms, and accurate positioning would be severely limited without gears.