Deep groove ball bearings will take a considerable beating before they actually fail, meaning you can have quite substantial inner and outer race faults before the bearing will actually die. Is it a direct drive (meaning fan shaft coupled directly to the motor)

And I'm with David Eason on the single average PeakVue. Is the fan variable speed drive?

I would go along with the general idea that seems to be being expressed here - this bearing is not "critical" yet, and will very likely last for a considerable while yet.

And like Patrick, I would like to see an un-correlated waveform.

Ian

Kelly,

I got the .rbm file you sent but cannot get it to work. I put it into the custdata folder. Don't I need the .dbz and._rb files to put into a folder with the database name?

To help illustrate the importance of having a fixed fmax try setting the fmax to 125000 cpm sometime. 1st, since 125000 is not one of the designated discrete fmax setting for PeakVue it will default to the next highest which is 300000 cpm. Then it will change the hp filter to 5000hz and you will probably not see anything in the spectrum. Set it to 120000 cpm and 200 hz hp filter and it will probably show up very clearly.

I learned this the hard way. When I started in this business I used IRD 7090 software and 890 data collector and 125000 cpm was ok with it so when we made the change to CSI lots of stuff was set up using 125000 cpm as the fmax and we weren't really impressed with PeakVue. Once we figured it out it became very clear.

Good Luck,

Danny

Danny all:
I would add my voice to those discussing the criticality of Fmax in Peakvue, I found the same thing... it can make a remarkable difference!

Danny,
The .rbm file is all you need. Run it through "Database Repair" and it should work unless your version is older than 4.8.

David Eason

Danny quote:

quote:

Set it to 120000 cpm and 200 hz hp filter and it will probably show up very clearly.

Danny,

Why would you want to set HP at 200 Hz?
Did you mean to use 2000 Hz HP?

David,

I'll give that a try.

Ralph,

2000 hz is right. Typing on the run.

Danny

Kelly B - just a word of encouragement from down under.
Stick to your guns - what you know is correct.

I've spent 10 years in CBM in this factory and five of those with a hls around me trying to take me down.
They're all gone now - but I'm still here. And those that are here now are with me!!!

Take care- from "Lord of the Rings" country.