The service life of sprockets is jointly affected by various factors such as material, heat treatment, structural design, machining accuracy, installation and maintenance, and working conditions. Insufficiency in any link will lead to premature sprocket failure. In practical applications, it is necessary to reasonably select materials, optimize structural design, strictly control machining and installation accuracy, strengthen daily lubrication and maintenance, and ensure the collaborative and stable operation of sprockets and chains in combination with specific working conditions. Only by comprehensively controlling all key factors can the service life of sprockets be maximized, the equipment maintenance cost be reduced, and the stable and efficient operation of the industrial transmission system be guaranteed.