This book provides a systematic treatment of the thermal and elastic deformation of bearings, seals, and other machine elements under a wide variety of conditions. In particular, it discusses failure mechanisms in bearings and seals when high speeds or loads cause significant frictional heating and methods for predicting and avoiding such failures. Intended for designers and mechanical engineers responsible for high-performance machinery, the book is unique in giving a systematic treatment of instabilities driven by frictional heating and thermal expansion and in developing a theoretical approach to engineering design in those cases in which the thermal problems are pivotal. It thus provides a guide as to what is important and what is secondary in the development of high-performance engineering systems. References to recent publications, new material that fill gaps in the literature, a consistent nomenclature, and a large number of worked examples make this a useful text and reference for researchers and practicing engineers.