What is the function of harmonic balancer?

A harmonic balancer is a component of an engine that serves to reduce vibrations caused by the engine's internal components, particularly the crankshaft. It typically consists of a weighted outer ring attached to the crankshaft, which absorbs and dissipates vibrations. This helps to enhance engine performance, prolong engine life, and improve overall smoothness during operation. Additionally, it aids in maintaining proper timing of the engine's components.