Meshing characteristics and stress analysis of equiangular spiral profile face gears
DING Shuaiqiang
CAI Zhiqin
YAO Bin
XU Shuidian
LI Zhisheng
Abstract：[Objective]With the increasing demand for the load-bearing capacity and service life of face gear transmission systems in the industrial field,a design method for face gear pair transmission based on equiangular spiral tooth profile was proposed to further enhance the load-bearing performance of face gear transmission.[Methods]The formation principle of the tooth surface of face gear with equiangular spiral was studied,and the discrete model of the tooth surface of face gear with equiangular spiral was derived by solving the meshing parameters of the meshing inlet point,meshing outlet point,the top point of the inner tooth profile and the root point of the outer tooth profile.The correctness of the tooth surface model was verified by using the numerical computation examples.The key characteristic parameters such as principal curvature,sliding rate and pressure angle of face gear with equiangular spiral were analyzed to prove that the tooth profile of face gear which are conjugated through the tooth profile of cylindrical gear are still equiangular spiral.The theoretical analytical model for the contact stress and bending stress of face gear was derived,and the accuracy of the theoretical model was verified through simulation.[Results]The simulation results show that the stress of equiangular spiral face gear is significantly smaller than that of involute face gear.It is concluded that the load bearing capacity of equiangular spiral face gear is significantly higher than that of involute face gear.This study provides a new design idea for improving the load bearing capacity of face gear transmission.
Keywords：Equiangular spiralFace gearLine contactLoad bearing capacity
Publication Date：2026-03-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：12( 120-131 )