Gear ratio is the ratio of the number of turns the driving gear makes to the number of turns the driven gear makes, which determines the mechanical advantage and speed of a system. It is crucial in applications like bicycles and vehicles, where it affects torque, speed, and efficiency.
A drive gear is a crucial component in mechanical systems, responsible for transmitting power and motion from one part of the system to another. It works by meshing with a driven gear, altering the speed, torque, and direction of the power transfer according to the system's requirements.