ISO 21940-32:2012
Current
The latest, up-to-date edition.
Mechanical vibration — Rotor balancing — Part 32: Shaft and fitment key convention
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English, French
03-16-2012
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ISO 21940-32:2012 specifies one convention for balancing the individual components (shaft and fitments) of a keyed rotor assembly. This provides compatibility of all balanced components so that when they have been assembled the overall balance tolerance and/or vibration limit for the rotor assembly is met.
ISO 21940-32:2012 specifies that half-keys be used when balancing the individual components of a keyed rotor assembly. It also specifies a marking of the components balanced in accordance with the key convention used.
ISO 21940-32:2012 applies to rotors balanced in a balancing machine, in their own bearings or in situ. The key convention can also be applied when measuring the residual unbalance and/or vibration of rotors with keyways, but to which fitments have not yet been assembled.
In addition to applying to keys of constant rectangular or square cross-section mounted parallel to the shaft centreline, ISO 21940-32:2012 also applies to keys mounted on tapered shaft surfaces, to woodruff, gibhead, dowel and other special keys. The principle of the half-key convention is applied as is appropriate to the particular shape and location of the special key.
| DevelopmentNote |
Supersedes ISO/FDIS 21940-32 and ISO 8821. (03/2012)
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| DocumentType |
Standard
|
| Pages |
16
|
| PublisherName |
International Organization for Standardization
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| Status |
Current
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| Supersedes |
| Standards | Relationship |
| SS-ISO 21940-32:2021 | Identical |
| DIN ISO 21940-32:2012-08 | Identical |
| UNI ISO 21940-32 : 2012 | Identical |
| BS ISO 21940-32:2012 | Identical |
| 16/30320661 DC : 0 | BS ISO 21940-2 - MECHANICAL VIBRATION - ROTOR BALANCING - PART 2: VOCABULARY |
| BS EN ISO 10439-1:2015 | Petroleum, petrochemical and natural gas industries. Axial and centrifugal compressors and expander-compressors General requirements |
| ISO 18436-2:2014 | Condition monitoring and diagnostics of machines — Requirements for qualification and assessment of personnel — Part 2: Vibration condition monitoring and diagnostics |
| BS ISO 21940-11:2016 | Mechanical vibration. Rotor balancing Procedures and tolerances for rotors with rigid behaviour |
| BS ISO 21940-12:2016 | Mechanical vibration. Rotor balancing Procedures and tolerances for rotors with flexible behaviour |
| BS ISO 18436-2:2014 | Condition monitoring and diagnostics of machines. Requirements for qualification and assessment of personnel Vibration condition monitoring and diagnostics |
| ISO 19859:2016 | Gas turbine applications Requirements for power generation |
| DIN ISO 18436-2:2014-11 | CONDITION MONITORING AND DIAGNOSTICS OF MACHINES - REQUIREMENTS FOR QUALIFICATION AND ASSESSMENT OF PERSONNEL - PART 2: VIBRATION CONDITION MONITORING AND DIAGNOSTICS (ISO 18436-2:2014) |
| DIN ISO 21940-11:2016-01 (Draft) | MECHANICAL VIBRATION - ROTOR BALANCING - PART 11: PROCEDURES AND TOLERANCES FOR ROTORS WITH RIGID BEHAVIOUR (ISO 21940-11:2016) |
| UNI ISO 18436-2 : 2014 | CONDITION MONITORING AND DIAGNOSTICS OF MACHINES - REQUIREMENTS FOR QUALIFICATION AND ASSESSMENT OF PERSONNEL - PART 2: VIBRATION CONDITION MONITORING AND DIAGNOSTICS |
| I.S. EN ISO 10439-1:2015 | PETROLEUM, PETROCHEMICAL AND NATURAL GAS INDUSTRIES - AXIAL AND CENTRIFUGAL COMPRESSORS AND EXPANDER-COMPRESSORS - PART 1: GENERAL REQUIREMENTS (ISO 10439-1:2015) |
| DIN ISO 21940-12:2016-09 | MECHANICAL VIBRATION - ROTOR BALANCING - PART 12: PROCEDURES AND TOLERANCES FOR ROTORS WITH FLEXIBLE BEHAVIOUR (ISO 21940-12:2016) |
| I.S. EN 847-1:2017 | TOOLS FOR WOODWORKING - SAFETY REQUIREMENTS - PART 1: MILLING TOOLS, CIRCULAR SAW BLADES |
| 15/30311781 DC : 0 | BS ISO 21940-12 - MECHANICAL VIBRATION - ROTOR BALANCING - PART 12: PROCEDURES AND TOLERANCES FOR ROTORS WITH FLEXIBLE BEHAVIOUR |
| ISO 21940-11:2016 | Mechanical vibration Rotor balancing Part 11: Procedures and tolerances for rotors with rigid behaviour |
| BS ISO 19859:2016 | Gas turbine applications. Requirements for power generation |
| ISO 10439-1:2015 | Petroleum, petrochemical and natural gas industries Axial and centrifugal compressors and expander-compressors Part 1: General requirements |
| EN 847-1:2017 | Tools for woodworking - Safety requirements - Part 1: Milling tools, circular saw blades |
| EN ISO 10439-1:2015 | Petroleum, petrochemical and natural gas industries - Axial and centrifugal compressors and expander-compressors - Part 1: General requirements (ISO 10439-1:2015) |
| ISO 21940-12:2016 | Mechanical vibration — Rotor balancing — Part 12: Procedures and tolerances for rotors with flexible behaviour |
| BS EN 847-1:2017 | Tools for woodworking. Safety requirements Milling tools, circular saw blades |
| 14/30244780 DC : 0 | BS ISO 19859 - GAS TURBINE APPLICATIONS - REQUIREMENTS FOR POWER GENERATION |
| ISO 1925:2001 | Mechanical vibration Balancing Vocabulary |
| IEC 60034-14:2003+AMD1:2007 CSV | Rotating electrical machines - Part 14: Mechanical vibration of certain machines with shaft heights 56 mm and higher - Measurement, evaluation and limits of vibration severity |
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