Evaluation of load distribution in the superstructure rotation joint of single-bucket caterpillar excavators

The rotation joint of the single-bucket excavator body consists of a torque slewing bearing subjected to a compound set of loads. Component elements of this joint form a coherent system, therefore independent selection of individual elements is not possible. The article describes the application of the finite element method for obtaining a solution, along with a description of how an appropriate model is to be built. It also presents and discusses sample results.