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  • BS ISO 21940-11:2016 (published 2016-11)

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    Mechanical vibration. Rotor balancing Procedures and tolerances for rotors with rigid behaviour

    Available format(s):  Hardcopy

    Language(s):  English

    Published date:  30-11-2016

    Publisher:  British Standards Institution

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    Table of Contents - (Show below) - (Hide below)

    Foreword
    Introduction
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Pertinent aspects of balancing
    5 Similarity considerations
    6 Specification of unbalance tolerances
    7 Allocation of permissible residual unbalance to
       tolerance planes
    8 Allocation of unbalance tolerances to correction planes
    9 Assembled rotors
    10 Accounting for errors in the verification of permissible
       residual unbalances
    Annex A (informative) - Example of the specification of
            permissible residual unbalance based on balance
            quality grade G and allocation to the tolerance planes
    Annex B (informative) - Specification of unbalance
            tolerances based on bearing force limits
    Annex C (informative) - Specification of unbalance tolerances
            based on established experience
    Annex D (informative) - Rules for allocating unbalance
            tolerances from tolerance planes to correction planes
    Bibliography

    Abstract - (Show below) - (Hide below)

    Describes procedures and unbalance tolerances for balancing rotors with rigid behaviour.

    General Product Information - (Show below) - (Hide below)

    Committee GME/21/5
    Development Note Supersedes 15/30290331 DC & BS ISO 1940-1. (11/2016)
    Document Type Standard
    Publisher British Standards Institution
    Status Current
    Supersedes

    Standards Referencing This Book - (Show below) - (Hide below)

    ISO 14694:2003 Industrial fans Specifications for balance quality and vibration levels
    ISO 21940-14:2012 Mechanical vibration Rotor balancing Part 14: Procedures for assessing balance errors
    ISO 21940-12:2016 Mechanical vibration Rotor balancing Part 12: Procedures and tolerances for rotors with flexible behaviour
    ISO 21940-21:2012 Mechanical vibration Rotor balancing Part 21: Description and evaluation of balancing machines
    ISO 19499:2007 Mechanical vibration Balancing Guidance on the use and application of balancing standards
    ISO 21940-32:2012 Mechanical vibration Rotor balancing Part 32: Shaft and fitment key convention
    ISO 21940-2:2017 Mechanical vibration Rotor balancing Part 2: Vocabulary
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