Shaft Mis-alignment

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bubathi
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Joined: 2012-05-02

Shaft Mis-alignment is detected by the increase in 1 x fr. fr is rotation speed and confirmed by the 180degree phase difference method.

I would like to know why there exist a 180 phase difference across coupling?

Also, when there is no misalignment, whether the phase difference is < 180 or > 180?

 
 
 

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