This International Standard classifies r?tors into groups in accordance with their balancing requirements, specifies methods of assessment of final unbalance, and gives initial guidance on final balance quality criteria.
All r?tors are therefore classified to indicate which can be balanced by normal or modified rigid r?tor balancing techni-ques and which require some form of high speed balancing. Classification of r?tors into different categories permits the use of simplified balancing methods for some r?tors and ensures that for others, where necessary, an adequate balancing operation is performed by a suitable method.
As in the case of ISO 1940, this International Standard is not in-tended to serve as an acceptance specification for any r?tor group, but rather to give indications of how to avoid gross defi-ciencies as well as exaggerated or unattainable requirements. Nevertheless, it may serve as a basis for more involved investigations, for example when a more exact determination of the required balance quality is necessary. If due regard is paid to the specified limits or methods of manufacture and balance, satisfactory running conditions can most probably be ex-pected. However, there may be cases where deviations from this International Standard may be necessary.
SIS SS-ISO 5406:1982 history
1982SIS SS-ISO 5406:1982 Vibration and shock - The mechanical balancing of flexible r?tors