Backlash is a mechanical phenomenon that refers to the amount of lost motion or play in a mechanical system, particularly in gears or other toothed components. It is the angular or linear distance that a gear or other component can move without engaging the mating gear or component.
Backlash is an important factor to consider in mechanical systems because it can affect the accuracy, precision, and efficiency of the system. Excessive backlash can lead to problems such as noise, vibration, and wear and tear on components. It can also compromise the system’s ability to perform its intended function effectively.