Design method of hub bearing unit spline pair driven by design factors
ZHAO Yongheng
XU Hang
ZHAO Xiao
LI Mandi
WANG You
Abstract：[Objective]Aiming at the common problem of stick-slip abnormal noise in the wheel end of electric vehicles during starting,a forward design method for the spline pair of hub unit was proposed based on the analysis of the factors inducing the backlash of involute spline matching.[Methods]Firstly,a full-process forward design framework for involute spline covering design input,parameter matching and verification was constructed by combining the transmission ratio design,tooth profile parameter matching and strength verification theory.Secondly,an integrated design interface and linkage solver were developed to realize the automatic calculation and verification of design parameters.Finally,the helix angle and tooth profile parameter design were conducted through a certain type of product.[Results]The results show that the proposed method can efficiently complete the forward design of involute spline pair tooth profile parameters and effectively meet the engineering requirements of flexible adjustment of mating backlash in hub unit development.The research results provide a new solution for solving the abnormal noise problem of electric vehicles during starting.
Keywords：Hub bearing unitInvolute splineAbnormal soundHelix angle
Publication Date：2026-04-15
Online Publishing Date：2026-09-12(First online date of this platform, not the publication date of the document)
Pages：6( 137-142 )