ANSI S2.19 : 0

Foreword
0 Introduction
1 Scope and field of application
2 References
3 Pertinent aspects of the balancing problem
   3.1 Representation of a state of unbalance
   3.2 Unbalance effects
   3.3 Rotors with one correction plane
   3.4 Rotors with two correction planes
   3.5 Assemblies
4 Permissible unbalance related to rotor mass
5 Quality grades relating service speed and
   permissible residual specific unbalance
6 Determination of balance quality requirements
   6.1 General
   6.2 Balance quality requirements based on
        established grades
   6.3 Balance quality requirements based on
        experimental determination
   6.4 Balance quality requirements based on
        specified permissible bearing forces
7 Allocation of permissible residual unbalance
   to each correction plane on the basis of U[per]
   7.1 General
   7.2 Single-plane balancing
   7.3 Two-plane balancing
        7.3.1 General
        7.3.2 Simplified approximate methods
        7.3.3 General methods
8 Determination of the residual unbalances
   8.1 Determination with a balancing machine
   8.2 Determination by means of an amplitude- and
        phase-measuring device
   8.3 Determination by measurements taken with a
        measuring device without phase indication
9 Sources of errors in balancing
   9.1 Instrument read-out errors
   9.2 Errors due to the drive and auxiliary
        equipment
10 Reporting
   10.1 Balancing report
Annexes
A Conversion factors
B Example for the general method described in
   subclause 7.3.3.1 for two-plane balancing

Gives recommendations for determining unbalance and for specifying related quality requirements of rigid rotors. Specifies a representation of unbalance in one or two planes; methods for determining permissible residual unbalance; methods for allocating it to the correction planes; methods for identifying the residual unbalance state of a rotor by measurement; a summary of errors associated with the residual unbalance identification.