The ISO 3547-7 standard specifies the Wall Thickness Measuring method of thin-walled bushings for winding type bushings of sliding bearings. Thin-walled bushings are widely used in various Machinery to ensure the Stability and working efficiency of bearings. The standard describes in detail the procedures and technical requirements for measuring the wall thickness of thin-walled bushings to ensure the accuracy and conformity of measurement results. Through accurate wall thickness measurement, the mass of bushings can be effectively evaluated to ensure its Reliability and durability in operation. This standard has important reference value for manufacturers of sliding bearings and quality control personnel, which helps to optimize the production process and improve the performance and service life of products.