An integrated experimental–numerical methodology for the design assessment and structural optimization of a pivot-bolt component from a spherical joint assembly is presented in this study. Such components are subjected to combined loads and repeated angular motions, which may lead to stress concentration, local deformation, and premature damage if the geometry is not properly designed. To investigate these aspects, a dedicated test stand for spherical-joint evaluation was developed to reproduce representative loading conditions and support the identification of critical operating cases. The experimentally defined load scenarios were then transferred to a finite element model of the pivot-bolt, allowing the analysis of equivalent stress, displacement, and critical structural zones. Based on the finite element results, a parametric optimization procedure was performed to improve the structural response of the component while limiting material consumption. The study therefore combines load-oriented experimental testing, finite element analysis, and simulation-based optimization within a unified design workflow. The proposed approach provides a useful framework for the redesign of spherical-joint elements and supports the development of mechanically efficient pivot-bolt geometries for subsequent durability-oriented validation.