Design of Worm and Spiral Gears

Résumé du livre

Discusses the nature of the action involved in screw gearing, the attendant contact conditions and how all-recess action design concepts can improve load-carrying and life capacity. Provides observations based on the authors' experience and worked-out step-by-step examples that will sharpen the reader's judgement of what to do and what not to do in spiral and worm gear design. Contains the formulas, diagrams, and methods needed to solve bearing load problems. Discusses in detail how graphical methods are used to determine contact conditions on spiral drives and worm drives that are based on the use of both the screw helicoid thread form and the involute helicoid form. Shows how beam strength, limiting loads for wear, and dynamic loads on spiral and worm gears are evaluated.