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| Posts: 35 | Location: Konectiva S. A. | Registered: 23 March 2005 |    |
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Various machinery have factory acceptance test standards like this. In all those, vibration is a secondary issue and since vendors have dominated the groups developing the stadnards, the levels suggested are much more forgiving than an enduser with experience from years of operation would accept. As a result, as one example, if you buy such machinery to Sweden and you are in the paper, mining, power and most chemical plants, you would use the standard SSG3030. This is developed by endusers using ISO Vibration Standards and is videly accepted by vendors. One source is www.ssg.seWithout knowing the specifics of your machine, I would suggest that you consider 4,5 mm/s rms broadband as the green or "ok" limit, and 11 mm/s rms as the "action limit" during operation and "red" = do not exceed as 18 mm/s rms. The points should be directly at bearing housings in three perpendicular directions. A vendor who wants you to accept above 4,5 should be asked to guarantee a long life and be asked for references with whom you can verify the long term maintenance issues with the design.
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| Posts: 141 | Location: Sweden | Registered: 21 February 2005 |    |
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| Posts: 171 | Location: Southern | Registered: 17 April 2005 |    |
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