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I have a request for VERY basic advice/ideas about a possible resonance situation. I was asked to take initial vib. data on a calcining oven we are purchasing. While taking data I noticed fluctuating amplitudes (.2 to .65 IPS PK) on 2 of the 8 zones. The 8 fans are plug fans mounted on the side...

Judging by the number of responses you're having the same difficulty I am, if you find anything could you post it here?

I am seeing what I beleive to be a trend of bearing failures due to elec. arcing in some of our VFD driven motors. Does anyone have a link to some related articles so I could present a report to management to upgrade brg' types during rebuild?

I am looking for an ACCURATE calculator software supplier for bearing frequencies. I currently have The Bearing Expert from International Source Index Inc. and am finding some serious descrepencies with between it and manufacturers info. i.e. - # of rollers,dimensions, etc. Any suggestions?

htibbs, the H.VIR comet windows are located in the Sq-D site under http://www.squared-services.com/ in the heading "testing - infrared inspection" if you wanted to e-mail me I could send U.S. pricing I received recently.

I am wondering are the Sq-D under Flir and the Hawk windows the only ones available?

Sorry for the "truncated" info, bad pun:( I do have fan speed harm's out to 17x run speed and 1/2x subs to 13.5x The components that have been ck'd are - brg' loose on shaft,sheave loose/concentric, and motor supports with all checking out o.k. The phase is unsteady. My data is limited...

Being admittedly poor in timewaveform analysis skills, I have a question concerning flattened/truncated waveforms. If waveform is "clipped" through full cycle (+ to -) is this rotor rub, data taken on overhung belt driven fan, inboard bearing vertical.If motor bearing is bad could this...

Insert Mounted Units, Taper bore 200 Series+Adapto Bore 75.000 O.D. 150.000 Width 82.000 (mm) 2.9528 5.9055 3.2283 (in) -------------------------------------------------------------------------------- Part No. UK216+H2316 Manuf:NTN...

Hope this helps, from International Source Index, the bearing expert program. www.sourceindex.com FTFI - 620.25 FTFO - 879.75 BSF - 4206.00 BPFO - 6202.65 BPFI - 8797.35

I am looking into purchasing modal analysis software for use with industrial vibration monitoring. Anybody have suggestions,opinions, links etc. Thanks

I would like to get some input, i.e. where to get info, on c-face pump adapters and the pros and cons, have heard they are very good at reducing alignment and vibration issues.