Revised and expanded, Gear Geometry and Applied Theory, 2nd edition, covers the theory, design, geometry, and manufacture of all types of gears and gear drives. Gear Geometry and Applied Theory is an invaluable reference for designers, theoreticians, students, and manufacturers. This new edition includes advances in gear theory, gear manufacturing, and computer simulation. Among the new topics are (1) new geometry for modified spur and helical gears, face-gear drives, and cycloidal pumps; (2) new design approaches for one-stage planetary gear trains and spiral bevel gear drives; (3) an enhanced approach for stress analysis of gear drives with FEM.