Auto-learning system for the calculation of spur and helical gears using ISO 6336

Learning to calculate spur or helical gears is a difficult task. Despite the vast amount of available literature, the non-graduate students make all kinds of mistakes when they start to study the matter. The group that presents this paper realized that the reasons for these errors is a misunderstanding of factors and the time spent on calculus to obtain the modified coefficients of allowable stress. Based on standards ISO 6336-1, ISO 6336-2, ISO 63363, and ISO 6336-5 an auto-learning program is carried out to: 1. Understand the physical meaning of the modified factors of stress. 2. Acquire enough practice in the gear design and in the gear calculation. 3. Obtain further information for specific applications.