GB/T 12458-2003

This standard provides a classification system for mechanical couplings, defining types based on their structural characteristics and functional properties such as rigidity, flexibility, and torque transmission. It is applied in the design, selection, and procurement of couplings used in mechanical power transmission systems across industries like manufacturing, automotive, and heavy machinery. The classification aids engineers and procurement professionals in identifying appropriate coupling types for specific applications, ensuring compatibility and performance in rotating equipment.