Synthesis and analysis of plastic curved-face-width spur gears

The paper gives an overview of a non-standard spur gear whose geometry is defined by both tooth curvature and variable height along the gear face-width. The gears are mainly designed for plastic gears, in order to enhance their transmissible power. Virtual models are used to investigate gear mesh, tooth deflections and strength, and a comparison with standard spur gears is drawn. Due to the gear complex geometry, a cutting process is appropriate for the gear manufacture.