Analysis of influence of bearing clearance on the static carrying capacity of multi-row slewing bearings

Abstract

The effect of selected bearing clearances in double row ball bearing and three row roller on their static carrying capacity is presented in the paper. An original method of determination of these profiles by means of the author's program that was based on a calculation model with rigid rings was proposed. This program allows on automated preparation of static load carrying capacity profile for the different defined values of clearance bearing. This consideration is illustrated by an example that was carried out for bearing in nominal state i.e. bearings without clearance and for acceptable value of bearings clearances that was defined by producer. Some specific points of bearing's operation and the distribution of internal load for these areas were also discussed. A mechanism of formation this load distribution on individual rolling elements of bearing was discussed. The detailed description of the course of the carrying capacity characteristics with repeated appearing of the local minimum was made.