This indispensable reference encompasses the essential language of gearing. Engineers will find clear, concise definitions for thousands of terms, trade names, and abbreviations used in everyday work--plus hundreds of crisp mechanical drawings that illustrate important technical concepts. Organized to provide instant access to specific information, the Dictionary is fully cross-referenced and contains alphabetically arranged sections on gear geometry, types of gears, materials and heat treatments, enclosed gear drives, inspection and testing, tooth wear and failure, lubrication of open and closed drives, and much more. With the input and approval of some of the most prominent people in the industry, its authority is unsurpassed in this vital industry.