BS ISO 1940-1:2003
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
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Mechanical vibration. Balance quality requirements for rotors in a constant (rigid) state Specification and verification of balance tolerances
Hardcopy , PDF
English
05-09-2005
24-06-2022
Foreword
Introduction
1 Scope
2 Normative references
3 Terms and definitions
4 Pertinent aspects of the balancing
4.1 General
4.2 Representation of the unbalance
4.3 Unbalance effects
4.4 Reference planes for balance tolerances
4.5 Correction planes
4.6 Permissible residual unbalance
5 Similarity considerations
5.1 General
5.2 Permissible residual unbalance and rotor mass
5.3 Permissible residual specific unbalance and service
speed
6 Specification of balance tolerances
6.1 General
6.2 Balance quality grades G
6.3 Experimental evaluation
6.4 Methods based on special aims
6.5 Methods based on established experience
7 Allocation of permissible residual unbalance to tolerance
planes
7.1 Single plane
7.2 Two planes
8 Allocation of balance tolerances to correction planes
8.1 General
8.2 Single plane
8.3 Two planes
9 Assembled rotors
9.1 General
9.2 Balanced as a unit
9.3 Balanced on component level
10 Verification of residual unbalance
10.1 General
10.2 Acceptance criteria
10.3 Verification on a balancing machine
10.4 Verification outside a balancing machine
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 balance tolerances based
on bearing force limits
Annex C (informative) Specification of balance tolerances based
on vibration limits
Annex D (informative) Specification of balance tolerances based
on established experience
Annex E (informative) Rules for allocating balance tolerances
from tolerance planes to correction planes
Bibliography
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.
| Committee |
GME/21/5
|
| DevelopmentNote |
Supersedes BS 6861-1(1987) and 01/716227 DC (09/2005)
|
| DocumentType |
Standard
|
| Pages |
38
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy | |
| Supersedes |
| Standards | Relationship |
| ISO 1940-1:2003 | Identical |
| DEFSTAN 02-327/3(2006) : 2006 | REQUIREMENTS AND GUIDANCE FOR THE PROCUREMENT OF PUMPS FOR AUXILIARY SYSTEMS |
| 06/30148066 DC : DRAFT DEC 2006 | BS 8487 - DESIGN AND CONSTRUCTION OF GAS BOOSTERS USED IN ASSOCIATION WITH COMBUSTION EQUIPMENT - SPECIFICATION |
| BS 8487(2007) : 2007 | THE DESIGN AND CONSTRUCTION OF GAS BOOSTERS USED IN ASSOCIATION WITH COMBUSTION EQUIPMENT - SPECIFICATION |
| DEFSTAN 02-327/4(2016) : 2016 | STANDARDS FOR DEFENCE REQUIREMENTS AND GUIDANCE FOR THE PROCUREMENT OF PUMPS FOR AUXILIARY SYSTEMS |
| DEFSTAN 02-305/3(2010) : 2010 | REQUIREMENTS FOR GEARING - MAIN PROPULSION |
| ISO 2953:1999 | Mechanical vibration — Balancing machines — Description and evaluation |
| ISO 14694:2003 | Industrial fans — Specifications for balance quality and vibration levels |
| ISO 2041:2009 | Mechanical vibration, shock and condition monitoring — Vocabulary |
| ISO 8821:1989 | Mechanical vibration — Balancing — Shaft and fitment key convention |
| ISO 1925:2001 | Mechanical vibration — Balancing — Vocabulary |
| ISO 1940-2:1997 | Mechanical vibration — Balance quality requirements of rigid rotors — Part 2: Balance errors |
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