Bodzás, SándorLi, Yifei2026-06-022026-06-022026-05-03https://hdl.handle.net/2437/407690The bicycle chain drive system is a core component for power transmission in the bicycle. Traditional designs often suffer from the industry challenge of simultaneously achieving lightweight design, structural reliability, and manufacturing economy. To address this issue, this paper focuses on the bicycle roller chain drive system, conducting a comprehensive study across three core dimensions: geometric design, CAM (Computer-Aided Manufacturing) simulation, and finite element analysis. Based on typical daily riding conditions, this study completed the fully parametric geometric design of the drive system, determined core design parameters, and achieved precise 3D modeling and virtual assembly of all components. Based on a CAM platform, this study developed a CNC machining process for the front and rear sprockets, completed toolpath planning and virtual simulation verification, and simultaneously ensured machining accuracy and mass production economy. Finite element analysis results show that the system strength and stiffness meet design requirements under rated operating conditions, and the sprocket natural frequency is significantly higher than the normal riding operating frequency, effectively mitigating the risk of resonance during operation. This study ultimately establishes a complete design verification system for the chain drive system, providing solid theoretical support and practical reference for the optimization and upgrading of bicycle chain drive systems.63enBicycle chain drive systemgeometric designCAM numerical control machining simulationEngineering SciencesHozzáférhető a 2022 decemberi felsőoktatási törvénymódosítás értelmében.