This standard specifies the balance method, grade of balance quality, accuracy requirement of the balancing equipment, rectification method and reinspection of the fan rotor.
This standard is applicable to the balance of the rotor or impeller of the centrifugal fan and aerofoil fan.
Foreword
1 Scope
2 Normative References
3 Terms and symbols
4 Rotor Type
5 Rotor Balancing Method
6 Accuracy of balance equipment and technological equipment
7 Calibration method and requirement
8 Denotation of balance quality grades
9 Determination for the allowable imbalance volume
10 Inspection and review of balance quality
11 Markings required by the balance in the design details
Appendix A (Informative) Record Card For Fan Rotor (impeller) Balance Check
