ISO 21940-11:2016Published

Mechanical vibration — Rotor balancing — Part 11: Procedures and tolerances for rotors with rigid behaviour

Vibrations mécaniques — Équilibrage des rotors — Partie 11: Modes opératoires et tolérances pour rotors à comportement rigide

Abstract / scope

ISO 21940-11:2016 establishes procedures and unbalance tolerances for balancing rotors with rigid behaviour. It specifies

a) the magnitude of the permissible residual unbalance,

b) the necessary number of correction planes,

c) the allocation of the permissible residual unbalance to the tolerance planes, and

d) how to account for errors in the balancing process.

NOTE In ISO 21940‑14, the assessment of balancing errors is considered in detail. Fundamentals of rotor balancing are contained in ISO 19499 which gives an introduction to balancing.

ISO 21940-11:2016 does not cover the balancing of rotors with flexible behaviour. Procedures and tolerances for rotors with flexible behaviour are dealt with in ISO 21940‑12.

Life cycle

Amendments & corrigenda

ISO 21940-11:2016/Amd 1:2022PublishedMechanical vibration — Rotor balancing — Part 11: Procedures and tolerances for rotors with rigid behaviour — Amendment 1International Standard · Published 19 May 2022 · ISO/TC 108/SC 2

Replaces

ISO 1940-1:2003WithdrawnMechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1: Specification and verification of balance tolerancesInternational Standard · Published 8 Sep 2003 · ISO/TC 108/SC 2 ISO 1940-1:2003/Cor 1:2005WithdrawnMechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1: Specification and verification of balance tolerances — Technical Corrigendum 1International Standard · Published 4 Jan 2005 · ISO/TC 108/SC 2