UNLIMITED FREE ACCESS TO THE WORLD'S BEST IDEAS

SUBMIT
Already an Engineering360 user? Log in.

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

Customize Your Engineering360 Experience

Finish!
Privacy Policy

This is embarrasing...

An error occurred while processing the form. Please try again in a few minutes.

ISO 21940-32

Mechanical vibration - Rotor balancing - Part 32: Shaft and fitment key convention

active, Most Current
Buy Now
Organization: ISO
Publication Date: 15 March 2012
Status: active
Page Count: 24
ICS Code (Balancing and balancing machines): 21.120.40
scope:

This part of ISO 21940 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.

This part of ISO 21940 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.

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. The principle of the half-key convention is applied as is appropriate to the particular shape and location of the special key.

Document History

ISO 21940-32
March 15, 2012
Mechanical vibration - Rotor balancing - Part 32: Shaft and fitment key convention
This part of ISO 21940 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...

References

Advertisement