CRANK SPROCKET AND MOUNTING STRUCTURE THEREFOR
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United States of America Patent
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Issued Date -
Sep 15, 2022
app pub date -
Mar 11, 2022
filing date -
Mar 12, 2021
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Abstract
Provided is a crank sprocket that allows suppressing a transmission of vibration. The crank sprocket of the present disclosure is mounted to one end side in an axial direction of a crankshaft of an internal combustion engine, and a timing chain is wound around the crank sprocket. The crank sprocket includes a sprocket base body, and a vibration-damping resin layer formed on an inner peripheral surface or a tooth surface of the sprocket base body. The vibration-damping resin layer includes a heat-resistant resin and a vibration damping filler that converts vibration energy into thermal energy.
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