| 摘要 |
A toothed belt, as commonly employed in power transmission and timing devices, is configured of distinctly colored components, especially in that the tooth cloth covering material and underlying rubber structural elements are colored distinctly from each other with non-black colors. The wear and tear of the toothed belt is revealed by a characteristic color appearance that arises due to abrasion, erosion, or deterioration of the toothed belt, and which can be readily assessed by visual inspection to provide an estimate of remaining useful operating life of the belt. Further, the construction of the toothed belt to provide a visual indication of its condition, does not compromise the durability of the toothed belt itself.
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