Fundamentals: Hooke’s law, Elastic constants, Shear force and bending moment diagram, Bending equation, Beam deflection, Compound stress and Mohr’s circle, working stresses, modes of mechanical failure, stress concentration, fatigue, Soderberg equation, members subjected to steady and alternating loads. Shafting, ASME design of transmission shafts, keys, design of square and rectangular key joints, welded joints, modes of failure, strength and efficiency of the joint, Springs: stresses in coil springs of round and square, deflection of coil springs, design of compression and tension springs. Flexible machine elements: Flat belt, V belt drives rope drives, Gears: spur, helical, bevel, worm gear, nomenclature, Lewis equation, Lewis form factor, design based on strength dynamic and wear loads, Bearings: mechanism of fluid film lubrication, Journal bearing, rolling contact bearing.