New Curve Fitting Based Roller Modification Method for Spherical Roller Bearing

Abstract

Abstract In the field of roller modification affecting the service life of rolling bearings, Different from point contact of ball bearing and line contact of cylindrical or tapered roller bearing, Spherical roller bearing is very special because it has the characteristics of point contact and line contact at the same time. To solve the problem that the spherical roller cannot be modified by line contact type roller modification method, this paper provides a new modification method of spherical roller. The spherical roller profile is divided into two parts: non modification profile and modification profile. The concept of gap space is put forward. Curve fitting is carried out in the non modified part, and then the fitting logarithmic curve is used in the modified part of the spherical roller. This method can provide reference for engineering application.