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  • DIN ISO 21940-21 E : 2013

    Current The latest, up-to-date edition.

    MECHANICAL VIBRATION - ROTOR BALANCING - PART 21: DESCRIPTION AND EVALUATION OF BALANCING MACHINES (ISO 21940-21:2012)

    Available format(s):  Hardcopy, PDF

    Language(s):  English

    Published date:  01-01-2013

    Publisher:  German Institute for Standardisation (Deutsches Institut für Normung)

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

    National foreword
    National Annex NA (informative) - Bibliography
    1 Scope
    2 Normative references
    3 Terms and definitions
    4 Capacity and performance data of the balancing machine
    5 Machine features
    6 Minimum achievable residual unbalance
    7 Production efficiency
    8 Performance qualifying factors
    9 Installation requirements
    10 Proving rotors and test masses
    11 Verification tests
    Annex A (informative) - Information provided by the user
            to the balancing machine manufacturer
    Annex B (informative) - URR limit diagrams
    Annex C (informative) - Shafts of outboard proving rotors
            type C
    Annex D (informative) - Modifications of proving rotors
            prepared in accordance with ISO 2953:1985 to this
            part of ISO 21940
    Bibliography

    Abstract - (Show below) - (Hide below)

    Defines requirements for evaluating the performance of machines for balancing rotating components by the following tests: a) test for minimum achievable residual unbalance, U[mar] test; b) test for unbalance reduction ratio, URR test; c) test for couple unbalance interference on single-plane machines; and d) compensator test.

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

    Document Type Standard
    Publisher German Institute for Standardisation (Deutsches Institut für Normung)
    Status Current

    Standards Referenced By This Book - (Show below) - (Hide below)

    DIN ISO 21940-12 E : 2016 MECHANICAL VIBRATION - ROTOR BALANCING - PART 12: PROCEDURES AND TOLERANCES FOR ROTORS WITH FLEXIBLE BEHAVIOUR (ISO 21940-12:2016)
    DIN ISO 21940-2 E : 2017 MECHANICAL VIBRATION - ROTOR BALANCING - PART 2: VOCABULARY (ISO 21940-2:2017)

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

    ISO 2953:1999 Mechanical vibration Balancing machines Description and evaluation
    SAE ARP 4162 : 2017 BALANCING MACHINE PROVING ROTORS
    ISO 1940-1:2003 Mechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1: Specification and verification of balance tolerances
    ISO 1925:2001 Mechanical vibration Balancing Vocabulary
    DIN ISO 11342 E : 1999 MECHANICAL VIBRATION - METHODS AND CRITERIA FOR THE MECHANICAL BALANCING OF FLEXIBLE ROTORS
    DIN ISO 1925:2002-05 MECHANICAL VIBRATION - BALANCING - VOCABULARY
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