A gear ratio is a comparison of the number of teeth on two different gears in a gear system. It represents the relationship between the number of rotations of the input gear and the output gear.
Gear ratio is calculated by dividing the number of teeth on the output gear by the number of teeth on the input gear. For example, if the output gear has 20 teeth and the input gear has 10 teeth, the gear ratio would be 20/10 or 2:1.
Gear ratios are used to change the speed and torque of a rotational system. By using different gear ratios, it is possible to increase or decrease the rotational speed of the output gear while also increasing or decreasing the torque.
The input gear ratio is the ratio of the input gear to the intermediate gear, while the output gear ratio is the ratio of the intermediate gear to the output gear. The input gear ratio is used to determine the speed and torque of the output gear, while the output gear ratio is used to determine the speed and torque of the final output.
Gear ratio plays a crucial role in determining the performance of a machine. A higher gear ratio will result in increased torque and decreased speed, making it ideal for heavy load applications. On the other hand, a lower gear ratio will result in increased speed and decreased torque, making it suitable for high-speed applications.