Quote:
Originally Posted by Frank Lee
I disagree.
You say steel belts are the biggest contributor to r.r. when actually they are the biggest thing that reduces r.r.; steel springs back efficiently thus returning nearly all the energy it took to deform it vs rubber which due to hysteresis doesn't return as much when "undeforming"; thus the rubber is the culprit in absorbing energy when rolling.
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This would be true if the steel belt was a band of sheet metal. But it a woven belt, and flexing causes some of the wires to slide across other wires. through the weave, for which there is no rebounding force. That is pure hysteresis. I stand by my statement.
But don't try to slide the context out from under me. I'm talking only about steel belted radials. In other tires there are other contributors to RR. In non-belted tires (bias ply) squirm is the overwhelming source of RR.
-mort