Understanding the geometry of gears with skew axes is a complex task, hard to grasp and to visualize. However, due to Study’s Principle of Transference, the geometric treatment based on dual vectors can be readily derived from that of the spherical case. This paper is based on Martin Disteli’s work and on the authors’ previous results where Camus’ concept of an auxiliary curve is extended to th...

Abstract Contour bevel gears have the advantages of high coincidence, low noise and large bearing capacity, which are widely used in automobile manufacturing, shipbuilding construction machinery. However, when surface quality is poor, effective contact area between gear mating surfaces decreases, affecting stability fit thus transmission accuracy, so it great significance to optimize contour ge...