adriver said

Since Bearing Technologies couldn’t give a report of their products “performance”, and referred that question to the “experts”, perhaps the question to have asked is what type of ball bearing the RP400 is.

http://www.engineersedge.com/bearing_types_pic.htm

Then one could make one’s own decision on use based on the facts.
How someone sells a product is his or her call.
We know marketing is real force.
I’ve seen tapered roller bearings fail.
Proves nothing.:argue:
Think I’ll swap everything to ball bearings.:thumblef:

Again, good luck on your quest.

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