HEEL-AND-TOE WEAR
The peculiar form of tire wear, which is described as “heel-and-toe” wear, is caused by lack of sufficient air for the load carried, combined with some kind of wheel irregularity. The exact causes, however, are still rather obscure, despite searching investigations which have been made, but it is thought to be due to some irregularity in rotation causing the rubber to pile up under load more in some parts of the tread than others. After the piling up the treail rubber will, in view of its natural elasticity, return to its normal shape so soou as it is released, thus being subjected to wiping in a fore-and-aft direction at one point only. It is known that even minute eccentricities in wheel rotation have a marked effect on the treail wear of an underinflated balloon tire, ami that this irregular wear is not-peculiar to any one make.
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Dominion, Volume 26, Issue 105, 27 January 1933, Page 13
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148HEEL-AND-TOE WEAR Dominion, Volume 26, Issue 105, 27 January 1933, Page 13
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