Quote:
Originally Posted by Shawn D.
Duh. It should have been obvious I was talking about in-operation temps.
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Ambient is when they are coldest. Start with warmer bearings, have a small leg up.
I wonder if bearings just don't get hot enough in operation (unless the brakes are dragging) for the color to have an impact. I suspect the black color would make little to no difference in operating temp. But black is known to be one of the best colors to have on solar collectors. Who knows, would it help the hub be warmer from ambient if it was sitting in the sun?
Either way I'd wager it's one of those hair-splitting deals.