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I will look for that link, thanks!!

What was the failure mechanism? abrasive wear or a secondary effect due to the ferrite caps? How long did it last and what was the application. Ulf

I seen this claim before. Do you have any direct experience? We can see a fair amount of ferrite caps left on the shafts. 20% of them maybe? Ulf

Right, you cant be sure how it is wired by the installer. The bearing show heavy abrasive/adhesive wear during start-stop testing. Anyone with experience of aluminum-tin bearings versus Al,Sn,Si bearings in terms of ability to manage nodular iron shafts? Tri metal vs aluminum? Ulf

We have very good oil supply, around 50 to 80psi, builds up in 0.2-0.3 seconds. The radom directionality is due to a three phase motor. There is no easy way to check direction of rotation. Ulf

Thats Great! Thanks a lot!!! 24.4 is about the width we have now accounting for the groove. To have a full bearing will make a lot of difference. Did it specify what type of material? What Fiat? Ulf

Great! I will contact Clevite, Maybe they can make a wider one in the same tooling. The current bearing has a 360 deg groove so the one you found can probably carry as good or better load. An other posibility would be to cut it to 1/2 the width and install two in one conrod for testing what the...

>There is some other interesting info here: >http://www.kp.dlr.de/WB-RS/Erstarrung/web_eng/lager_eng.html That was a cool link, Allmost like making them out of an Unobtanium alloy :-) I am working with some bearing manufacturer. My hope was to find a car out there that happen to use a...

Maui, Thanks for the suggestion but NSK is not making journal bearings according to their website. Ulf

Hi, I am trying to improve the life of a Connecting rod bearing in a compressor. The Bearing is a Aluminum Tin Copper bearing (79/20/1). The Crank shaft is a hardened nodular iron shaft. I have got the advice that the bearing alloy is not a good choice for an application with a nodular iron...

Electripete, Thanks for your help anyway. I was actually involved in this at Lulea a little bit where we were looking at low speed operation of these type of bearings for cool downs etc. They are extremly rugged. The scope was to se how dirt and filteration affected wear at low speed operation...

therealkilkenny (Mechanical) Jun 4, 2003 If you get to the stage of smearing of the babbit, then I suspect you can forget about your bearing lasting very long. We had a visitor from Lulea the other week I know Sergei very well. Donald have started after I left in the spring of 2000. The...

>electricpete (Electrical) wrote on Jun 4, 2003 >We have 2500hp 1800rpm electric motors with 4" sleeve >bearings that have coast-down times of 10-15 minutes when >uncoupled. Rotor is somewhere in the range of 5,000 >pounds distributed over two bearings. Seems like a lot >more severe duty...

I understant the value of such technology. The issue here as I see it is teperature rise during loss of oil and possible smearing of the babbit. I wiew it as a boundary lubrication issue more than a fluid film but I will read up on your method. I have been using optical interferometry and...

I recall seeing a chart somewhere for journal bearings with load*speed on the Y and coast down time on X. The chart illustrated how large load and speed that could be managed during coast down at power loss or similar events where the oil supply is interrupted to a journal bearing. The bearing...