The aim of this work was to study the reason for abnormal rejection of bush with cam in offset printing machine. The machine requires high-quality bush with cam, so the inspection is tight and rejection was more. From the study, the root cause of rejection was found out and recommendations were made. Keywords: Inductor, eddy current, en8d, RCA, scale, decarburizationCite this Article Albin VJ. Study of defects in bush with cam of offset printing machine. Trends in Machine Design. 2015; 2(3): 30–38p.