389 Q Examples of Belt Replacement Signs &These are belt replacement timing guides. Early or periodical replacements are recommended even the signs shown above are not yet visible. Q Names of Belt Components Tooth Body Rubber Tooth Tip Tooth Lining (Reinforcement) Tooth Surface Valley of teeth Core Wire Examples Condition 1. When belt tooth reinforcement fabric is worn and rubber/core wire are exposed When tooth surface/grooves are worn and rubber/core wire are exposed 2. When the backing rubber shows cracks due to hardening 3. When cracks reaching the rubber are seen at tooth base 4. Belt side faces are damaged due to wear 5. When missing tooth can be seen 6. When excessive wear can be seen on belt back side 7. When belt or core wire are broken Timing Belt Synchronous Belt Replacement Signs
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