The Machine design is one of primary activity done by the designer and fabricator before producing any machine. The machines consist of an engine consists of number of components like piston, cylinder, crankshaft, connecting rod, flywheel, gears, belt drive etc. These are subjected to high pressure resulting into development of stresses. The failure of the parts and components of machine occurs because of cracks and breaking of parts. This can be avoided if the designer designs the machine parts and components for fail safe operation. It contains design of shaft, belt drive, chain drive, gear drive, fatigue failure etc. This data book is very useful for the students of degree and diploma in Mechanical Engineering because of the reason that it contains the machine design procedure for major elements of engine and other components of machine. This book contains large amount of data in form of equations, tables etc.