Abstract
This paper described a study on the bending fatigue strength of thin-rimmed helical gears with web arrangements. Root stresses from the beginning of engagement to the end of engagement of the thin-rimmed helical gears with web arrangements were measured by means of the strain gage method, and the changes of the root stresses in the meshing process, the maximum root stress O_cmax, and the worst meshing position (the meshing position where the maximum root stress occurs) were determined. Bending fatigue tests were carried out for the thin-rimmed helical gear pairs of different rim and web thicknesses and helix angles meshed at the worst meshing position and S-N curves were obtained. Effects of rim and web thickness and helix angle on the bending fatigue strength of the thin-rimmed helical gears with web arrangement were determined.
