GB/T 33506-2017

This standard specifies the technical requirements, test methods, inspection rules, and marking/packaging for curved tooth couplings used in the main drive systems of cold rolling mill units. It is applied in the design, manufacturing, and acceptance of these couplings within the steel industry, specifically for transmitting torque and accommodating misalignment between the motor and the rolling mill rolls. The standard ensures reliable power transmission and operational safety under the high-load, low-speed, and reversing conditions typical of cold rolling processes.