Transactions of Machine Elements Division; On the Design of External Involute Helical Gears

摘要

Gear strength is divided into two parts, namely contact pressures and fillet bending stresses. The aim of this work is to determine the load distributions in external involute helical gears and, using these, to calculate contact pressures and fillet stresses. The influence function of bending deformation and the bending stresses are treated with the finite element method. Diagrams are made for the contact pressures and the fillet stresses as functions of the number of teeth at the pinion and the gear ration when the helix angle is 0, 10 degrees and 20 degrees respectively.