This book brings out the solution of various complex technical problems of mechanical engineering in 19 chapters concerning design, system, quality, malfunctioning, maltreatment, operational and various unforeseen causes of the machines. The various chapters of this book deal with the unique problems and their solutions including time bound increase in machine vibrations, whistling intermittent noise of vertical pump-motor sets, premature failure in the alternators & synchronous condenser, wind-mills problems apart from technique of axial force measurement on rotor, reliability assessment of rolling element, hydrodynamic and spherical seated bearings in operation, effect of cage and roller slip, functional performance tests, concept and analysis of double decker high precision bearing besides magnetic suspension system of energy meters.