| 摘要 |
PROBLEM TO BE SOLVED: To provide a chain sprocket capable of suppressing noise in a roller chain drive or a bush chain drive. SOLUTION: This chain sprocket 10 is formed with a plurality of sprocket teeth 12 separated by chain rollers or bush seated sections 13. The sprocket teeth of part of the sprocket teeth is formed with different flank surface shapes, and the sprocket teeth are disposed on the sprocket with an arrangement in accordance with a prescribed rule.
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