Machine Design, an ocean for mechanical engineers, requires the basic knowledge of mechanical engineering design that is provided with the help of step by step approach followed in a design data book. Keeping this in mind, this handbook is framed as per the latest syllabi followed in the universities, which presents the subject in a concise and step by step manner. This data book with latest standards and codes brings all the formulae and data required to solve the easiest to the most complex machine design problems under one umbrella. With fully updated data in SI units, it is loaded with numerous figures, tables and formulas. Design Data Handbook is the outcome of the author’s several decades of experience in teaching technicians in Design Engineering in Indian Space Research Organization (ISRO). Following a problem-solving approach, this handbook provides an opportunity to the students of Mechanical Engineering, Industrial Engineering, Production Engineering, and Automobile Engineering to learn to tackle the machine design problems and to apply their knowledge across the full spectrum of challenges facing the engineering/scientific communities.