Load distribution and tooth root stress of bevel gears

Determining the load distribution on a contact line of a bevel gear and the tooth root stress distribution are very important on strength design. However, it is not easy to request them, because the mesh is three-dimensional and the tooth thickness and the height of tooth become large from the toe through the heel, unlike a cylindrical gear. Therefore, in a previous report, by using approximate equations of deflection-influenced functions and the bending moment-influenced functions of a tooth of a bevel gear, we proposed the method to calculate the load distribution on the contact line of a tooth of bevel gear and the tension-side root stress. In this report, we examined the influence of number of teeth and gear ratio for them.