
The 3D model of couplings serves as a fundamental and intuitive digital tool for modern mechanical design and industrial engineering, accurately reproducing the structural features and operational principles of shaft connection components. This refined digital model fully simulates the core function of couplings to transmit rotational torque between adjacent mechanical shafts, while effectively demonstrating their capacity to compensate for minor axial, angular and parallel misalignments during equipment operation. It precisely displays standardized geometric structures, assembly interfaces and stress-bearing areas, enabling designers to conduct intuitive structural verification, motion simulation and mechanical performance analysis. Eliminating the limitations of traditional two-dimensional drawings, the 3D model optimizes design accuracy, simplifies pre-production testing and assembly planning, and helps reduce structural defects and operational vibrations. Widely adaptable to various mechanical transmission systems, it provides reliable digital support for product iteration, engineering teaching and standardized industrial manufacturing of coupling components.