The Fourth Edition of Dudley’s Handbook of Practical Gear Design and Manufacture is the definitive reference guide to gear design, production, and applications. Using a pragmatic approach, the book provides gear manufacturing methods for high-, medium-, and low-volume production. Updated throughout to reflect cutting-edge research, this edition includes new contributions from experts in the field. Providing a clear overview of the foundations of advanced gear systems, the book contains new material on the potential of technologies such as high-performance plastic gears alongside issues that can be encountered. The book also includes innovative chapters discussing topics such as involute gear drives and gear strength calculation, with new regulations such as ISO 6336 in mind. Using modern technologies such as powder metallurgy and additive manufacturing, all the necessary information to reduce gear cost is provided. Additionally, gear micro-geometry modifications and planetary gear designs are discussed. FEATURES Provides an up-to-date, single-source reference for all aspects of the gear industry Presents an integrated approach to gear design and manufacture Includes new coverage of direct gear design and ready-to-use gear design Contains coverage of finite element analysis, gear vibration, load ratings, and gear failures The book includes comprehensive tables and references, making this the definitive guide for all those in the field of gear technology, from industry professionals to undergraduate and postgraduate engineering students.