Local Synthesis and Tooth Contact Analysis of Face-Milled Spiral Bevel Gears

Computerized simulation of meshing and bearing contact for spiral bevel gears and hypoid gears could improve substantially the technology and the quality of the gears. This report covers a new approach to the synthesis of face-milled spiral bevel gears and their tooth contact analysis. The main goals of local synthesis are to provide: (1) contact of gear tooth surfaces at the mean point of contact of gear tooth surfaces, and (2) improved conditions of meshing within the neighborhood of the mean contact point. The local synthesis is the first stage of the global synthesis with a goal to provide improved conditions of meshing for the entire area of meshing. The criteria of conditions of meshing are the transmission errors and the bearing contact. The principles of local synthesis that are discussed in this chapter for face-milled spiral bevel gears can be applied for other types of gears as well.