GB/T 33507-2017

This standard specifies the technical requirements, test methods, inspection rules, and marking/packaging for universal couplings used in the main drive systems of cold rolling mill units. It is applied in the manufacturing and quality verification of cross-shaft universal couplings that transmit torque between the motor and the rolling mill rolls under high-load, low-speed conditions. The standard ensures reliable power transmission, dimensional interchangeability, and fatigue life in steel and non-ferrous metal cold rolling production lines.