BS ISO 1940-1:2005
Mechanical vibration - Balance quality requirements for rotors in a constant (rigid) state - Specification and verification of balance tolerances

Standard No.

BS ISO 1940-1:2005

Release Date

2005

Published By

British Standards Institution (BSI)

Status

Be replaced 2016-11

Replace By

BS ISO 21940-11:2016

Latest

BS ISO 21940-11:2016

Replace

01/716227 DC:2001 BS 6861-1:1987

Scope

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 unbalance. Recommendations are also given concerning the balance quality requirements for rotors in a constant (rigid) state, according to their machinery type and maximum service speed. These recommendations are based on worldwide experience. This part of ISO 1940 is also intended to facilitate the relationship between the manufacturer and user of rotating machines, by stating acceptance criteria for the verification of residual unbalances. Detailed consideration of errors associated with balancing and verification of residual unbalance are given in ISO 1940-2. This part of ISO 1940 does not cover rotors in a flexible state. The balance quality requirements for rotors in a flexible state are covered by ISO 11342.

BS ISO 1940-1:2005 history

• 2016 BS ISO 21940-11:2016 Mechanical vibration. Rotor balancing. Procedures and tolerances for rotors with rigid behaviour
• 1970 BS ISO 1940-1:2003 Mechanical vibration — Balance quality requirements for rotors in a constant (rigid) state — Part 1 : Specification and verification of balance tolerances
• 1987 BS 6861-1:1987 Mechanical vibration - Balance quality requirements of rigid rotors - Method for determination of permissible residual unbalance
• 0000 BS 5265 Pt.1:1979

BS ISO 1940-1:2005 Mechanical vibration - Balance quality requirements for rotors in a constant (rigid) state - Specification and verification of balance tolerances has been changed from BS 6861-1:1987 Mechanical vibration - Balance quality requirements of rigid rotors - Method for determination of permissible residual unbalance.

BS ISO 1940-1:2005 Mechanical vibration - Balance quality requirements for rotors in a constant (rigid) state - Specification and verification of balance tolerances was changed to BS ISO 21940-11:2016 Mechanical vibration. Rotor balancing. Procedures and tolerances for rotors with rigid behaviour.