Mechanical vibration - Rotor balancing - Part 32: Shaft and fitment key convention (ISO 21940-32:2012)
Project begin
2011-10-18
Planned document number
DIN ISO 21940-32
Abstract
This part of ISO 21940 specifies one convention for balancing the individual components (shaft and fitments) of a keyed rotor assembly, namely 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.
This part of ISO 21940 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, this part of ISO 21940 also applies to keys mounted on tapered shaft surfaces, to woodruff, gibhead, dowel and other special keys.
Responsible Committee
NA 001-03-06-01 UA Auswuchten und Auswuchtmaschinen (NALS/VDI)
Notice of supersedure
Vorgesehen als Ersatz für DIN ISO 8821:1991-10
Draft standard
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