Babbitt Bearing Repair

My company is in the process of upgrading our babbitt repair facilities and would like to be able to verify the bond between the babbitt and the bearing shell. I assume that ultrasound would be a way to accomplish this. Does onyone know a specific proceedure/equipment to check the quality of the bond in bearing inspection or repairs?

Thanks,
dj
Original Post
The interface between babbit and shell is visible along certain edges, like all four edges of tilt-pad bearing, or the edge visible when you remove top half from bottom half and view the split-line on a journal bearing. You can visually inspect this. Also apply pressure to the bearing and look for oil seeping out of this interface. Also of course look for unusual cracking of babbit. These are very coarse checks that would only find big problems... not very sensitive to small localized debonding and certainly not as good as UT.
Since you're from Southern Illinois, call Ultron and see if they can help you set something up in UT.
If you've got a good KrautKrammer box (or reasonable facisimile) and buy the probes and procedure the Ultron boys turn you onto, I'm sure you can check them, providing you have some one there qualified in UT.

Dave
Dave, It looks to me like Ultron is in Mt. Vernon, you are right that is not far from us. Actually we were all just very near there a few weeks ago for some "team building" at Rend Lake. You should have seen the look on my bosses face when I said we might need a KrautKrammer.

John, Thanks for the DoD spec. We will peruse that for some guidance.

dj
quote:
Originally posted by D James:
You should have seen the look on my bosses face when I said we might need a KrautKrammer.

dj


LOL Tell him they are not that bad. When I used to do UT the guys at Ultron (Yes, Mt. Vernon is where they are at. I'm getting old (er)) helped me quite a bit. I used to use them at the mine checking draglines, shovels, etc. and then when I went out on my own, they helped me with some procedures. If you get to the point of needing someone, I would certainly recommend them. By the way, when I got out of the UT end of the business (takes too much time to stay current when I was only doing a few jobs a year) I sold my KrautKrammer to them.

D
I just downloaded and looked at the DOD spec John posted.........get you a KrautKrammer and call Ultron for training! LOL
The procedure in the DoD doc is pretty simple. If you buy a box, don't skimp on the transducers. A dual transducer is probably what you want.
Don't go with a cheapy, they will have all kinds of noise that will look like the bang (shown as IF in the pdf) everywhere. I still have a couple of them lying around somewhere. Aren't worth even finding again!
Good luck.

D

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