Optimal Design Method of Tooth Surface for Spiral Bevel Gear based on Bending Strength Checking Standard Modification

The ANSI/AGMA 2003-B97 is a widely used bending stress checking standard for spiral bevel gears. The calculation formula of bending strength checking is carried out， the key parameters are modified， the problem of insufficient safety margin of bending strength checking solved， and this method is verified by finite element contact analysis. Based on the modified bending strength checking standard， the strength checking software of spiral bevel gear is developed， and the optimal design scheme of tooth surface is given. The proposed method can improve the accuracy and efficiency of tooth surface bending strength checking calculation.