Factor influencing machine design, selection of materials based on mechanical properties – Direct, bending and torsion stress equations – Impact and shock loading – Calculation of principle stresses for various load combinations, eccentric bending – Factor of safety – Theories of failure – Stress concentration – Fatigue strength and the S-N diagram – Soderberg, Goodman and Gerber relations.

Design of solid and hollow shafts based on strength and rigidity– Design of keys and key ways – Design of rigid and flexible couplings

Review of gear fundamentals – Interference - Gear forces - Dimensions of a spur gear pair- Dimensions of helical gear pair- Design of spur and helical gears – Nomenclature of worm and bevel gears

Design of helical and leaf springs under constant and varying loads – Design of knuckle and cotter joints.

Selection of bearings – Sliding contact and rolling contact types – Cubic mean load – Design of journal bearing – McKee’s equation – Lubrication in journal bearings – Calculation of bearing dimensions – Design of ball bearings.