Quote:
Originally Posted by Jamesp
You cannot see the seal in this picture, its on the other side of the bearing. I don't think Porsche-land is lying. Any bearing can fail. The bearings shown do have the correct number of balls for the classic ceramic bearing and also have the correct number of seals which is one. What is not clear is what the operating environment of the bearing was. If there is contamination in the bearing it will fail, and as it does it generates more contamination. There is a reason the engines get screened.
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Of course one cannot see the seal because its is on the inside of the inside and that's the point. Both the LN critic and his cited failure cases say / show respectively there's an outside seal. If so, they aren't talking about / showing LN bearings.
BTW: I fully agree with your comment that debris in the oil will kill a perfectly good IMSB once it contaminates the bearings / race(s)