Machine Design Practice: Formulas, Shafts, Bearings, and Gears

Solving numerical problems in mechanical machine design can be challenging without a structured approach to formulas and calculations. This text-based course guides you through the fundamental principles and mathematical models needed to design reliable mechanical components. You will develop a strong conceptual understanding of machine elements and learn how to apply standard design equations to real-world engineering scenarios. What you will learn: Understand the foundational principles of stress, strain, and material selection for mechanical components; Calculate shaft dimensions under torsional, bending, and axial loads using standard design formulas; Analyze helical spring designs for static and fatigue loading conditions; Select and evaluate sliding contact and rolling contact bearings using standard life-estimation equations; Design spur and helical gears by applying strength equations and wear criteria; Apply modern limit-state design concepts and safety factors to prevent mechanical failure. The course begins with foundational definitions and key engineering terminology before moving systematically through step-by-step solved examples for shafts, springs, bearings, and gears. You will read detailed derivations, review essential formula sheets, and practice with written exercise problems. This course is designed for engineering students, junior designers, and mechanical enthusiasts looking to build a solid foundation in machine design without any advanced prerequisites. Start reading today to master the mathematical core of machine design.