Mechanical vibrations. Rotor balancing. Part 21: Description and evaluation of balancing machines

This document establishes the fundamental principles and methodologies for describing and evaluating rotor balancing machines. It defines the essential parameters used to characterize the performance capabilities of such equipment, ensuring a consistent framework for technical assessment. The content addresses key aspects including measurement accuracy, repeatability, and the ability to resolve unbalance across various rotating machinery components. It provides standardized terminology and classification criteria that facilitate clear communication between manufacturers and users regarding machine specifications. The approach detailed within enables the objective determination of whether a balancing device meets required performance levels for specific industrial applications. By adhering to these guidelines, organizations can ensure that their balancing processes rely on instruments that have been rigorously assessed according to established technical benchmarks. The text serves as a reference for understanding the functional attributes and operational limits of balancing equipment without implying superiority over other methodologies or equipment. It focuses solely on the descriptive and evaluative framework necessary for maintaining quality in mechanical vibration control systems.