Mechanical vibration. Balance quality requirements for rotors in a constant (rigid) state - Specification and verification of balance tolerancesMechanical vibration Balance quality requirements for rotors in a constant (rigid) state Part 1: Specification and verification of balance tolerances Executive summary Balance quality requirements for rotors in a constant (rigid) state. Abstract This part of ISO 1940 gives specifications for rotors in a constant (rigid) state. It specifies: a) balance tolerances; b) the necessary number of correction planes; and c) methods for verifying the residual

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