Bevel and hypoid gears are widely used in automotive and industrial applications because they can transmit motion and power between intersecting or skewed shafts. The geometric complexity of these components, combined with the strong influence of manufacturing processes on the final tooth geometry, makes their analysis and design particularly challenging. In this context, the generation method plays a fundamental role in determining the three-dimensional shape of the tooth flanks and, consequently, the gear pair’s meshing behavior. This thesis presents a geometric and kinematic modeling framework for analyzing bevel gear tooth generation, with particular focus on the Face Milling and Face Hobbing manufacturing processes.