CTA - Cyclic Time Average (SKF)/Contribution Profile | AMP Maintenance Forums

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Hi everyone,

Has someone experience/knowledge about CTA (contribution profile) interpretation?

The image below is about a 33 teeth gear shaft with 73,2 hz turn shaft speed.

But, Why this spikes in upper right side?

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Tags: Cyclic Time Average, CTA, Contribution Profile, gear, SKF

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You mention 33 teeth; how many teeth are on the mating gear?

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In this shaft 33.

Please look at the picture.

Thanks.

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I am not really familiar with the software you are using but can you do multiple revolutions of the circular plot? I’m used to seeing about 8 revolutions. If they lay more or less on top of each other it is an indicator of something related to the rotor. In the case of a gear, perhaps something related to the hob. If the pattern constantly rotates, then perhaps related to a bearing on the rotor.

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Thanks John,

I am using @ptitude Analyst from SKF.

This is a tool for analysis gear tooth defects.But i am not sure about the interpretation.

following the tecknical paper about.

https://skftechnicalsupport.ze...-SKF-ptitude-Analyst

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