GB/T 19874-2005

This standard defines methods for evaluating how susceptible a machine is to unbalance and how sensitive its vibration response is to a given unbalance. It is applied in the design, testing, and maintenance of rotating machinery, such as turbines, pumps, and electric motors, to establish acceptable unbalance tolerances and predict vibration behavior. The standard is used by engineers to ensure reliable operation and prevent excessive vibration in mechanical systems across industries like manufacturing, power generation, and transportation.