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General Tech Steel Wool on Rod Bearings

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KVH

KVH

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I used some medium grade steel wool to polish two little nicks out of a rod bearing. The steel wool did cause the bearing to look quite shiny. I was not very aggressive. Was that OK?
 
I don't see why it would hurt. I don't think steel wool would change it dimension wise, given how you have used it.
 
Believe it or not, many very old shop manuals recommended cleaning the bearing faces with steel wool until they were shiny. That shows that what you did can't be too bad!?!
 
KVH said:
I used some medium grade steel wool to polish two little nicks out of a rod bearing. The steel wool did cause the bearing to look quite shiny. I was not very aggressive. Was that OK?
Click to expand...

Clean that bearing really well and go over it with a magnet...last thing you want is to have a piece of it cause damage to the bearing and crank!
Rut
 
I love this hobby. It's because there's always a reason to do more. I took that one "steel wooled" bearing off to be sure I didn't leave any steel wool on it. It was free of steel wool, alright, but now has what appears to be a small "BB" depression on the surface. Like someone shot it with a Daisy Red Rider. Of course, that could only happen if despite all my care and coddling, I somehow got a spec of dirt or fine grit of some sort on the bearing shell. How careful must one be? I had rags, a light, a magnifying glass and my usual neurosis to go with it all. And, still, debris on the bearing.

Oh, well. I just ordered a new bearing set, and I start all over again. Tonight I'll check the crank, too. Someone up there wants me to have fun. I'm sure of it.
 
One of the desirable characteristic of rod and crank bearings is 'embedability' in it's overplate layer. I would not be too anxious to wear any of that layer away by trying to polish it....In fact this is the first I've heard of anyone polishing a bearing....journals and crank pins, yes, but bearings?
You want them to be accurate in size within 0.0005" so why rub some away with steel wool ?
 
My shop suggested it after I noticed a gouge in the new bearing. Slight but it was there. Maybe grit on assembly. They say they do that very carefully with a marred bearing.
 
If you have bimetal bearings or babbit thru and thru, polish away if you think it's the thing to do.
If you have trimetal...the layer you are "polishing" is only 0.0005 to 0.0008" deep...so I wouldn't be too anxious to polish any of that away or you'll reduce it's effectiveness.
I don't know as much about large electric motors as I do about gas engines but it does sound like an apple and oranges comparison to me.
 
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