A belt guard is a protective device designed to shield and enclose moving components of a belt-driven system, such as pulleys, belts, and other rotating parts. The primary purpose of a belt guard is to enhance safety by preventing accidental contact with the moving components, which could pose a risk of injury to operators or damage to nearby equipment. By enclosing the rotating elements, a belt guard helps contain any potential hazards, such as flying debris or entanglement risks, thereby reducing the likelihood of accidents or operational disruptions.