contents   index   previous   next



ISO Standard 2372

 

The ISO standard number 2372 provides vibration amplitude acceptance guidelines for rotating machinery operating from 600 to 12000 RPM. It specifies overall vibration velocity levels rather than spectral levels, and can therefore be quite misleading.

ISO 2372 specifies the RMS vibration velocity limits on a basis of machine horsepower, and covers a frequency range from 10 Hz to 1000 Hz. Because of the limited high frequency range, rolling element-bearing problems can be easily missed. This standard is considered obsolete, and is about to be rewritten.

Level, VdB

Level,

IPS

Less Than

20 HP

20 to 100 HP

More Than100 HP

125

 

1.00

 

Not Permissible

 

Not Permissible

 

Not Permissible

 

121

 

0.63

 

Not Permissible

 

Not Permissible

 

Just Tolerable

 

117

 

0.40

 

Not Permissible

 

Just Tolerable

 

Just Tolerable

 

113

 

0.25

 

Just Tolerable

 

Just Tolerable

 

Allowable

 

109

 

0.16

 

Just Tolerable

 

Allowable

 

Allowable

 

105

 

0.10

 

Allowable

 

Allowable

 

Good

 

101

 

0.06

 

Allowable

 

Good

 

Good

 

97

 

0.04

 

Good

 

Good

 

Good

 





Azima DLI provides products and services for Predictive Maintenance including vibration analysis instruments, monitoring and diagnostic software, and consulting for CBM programs.




www.AzimaDLI.com 

 © 2009 - Azima DLI