
A gap chart of couplings serves as a fundamental technical reference that standardizes axial and radial gap parameters for various coupling structures in mechanical transmission systems. It systematically illustrates reasonable gap ranges corresponding to different operating conditions, including rotational speed, load intensity and shaft misalignment states, laying a reliable foundation for coupling installation, debugging and daily maintenance. Proper gap control is critical to reducing mechanical vibration, friction loss and operational noise during equipment operation, while effectively avoiding excessive wear, shaft jamming and transmission efficiency attenuation caused by inappropriate gap values. This intuitive chart helps technical personnel quickly judge the matching state of couplings and rotating shafts, standardize assembly operations, and ensure stable, safe and long-term operation of mechanical transmission equipment in diverse industrial scenarios.