The invention relates to a method for predicting the amount of wear of the chain pin with the frictional sound generated by the friction between the roller and the sprocket when a chain roller rotatably engaged with the groove of the sprocket groove.
A method for the wear amount prediction method of the chain pin in the roller chain with a grinding noise according to an embodiment of the present invention, roller chain is measuring the chain pin wear amount of the roller chain in which is driven by a rotating force of the sprocket, wherein the noise sensing unit the step of sensing the ambient noise of the roller chain; Separating a frictional sound between the roller and the tooth profile of the sprocket of the roller chain from the background noise of the sensing chain in the source separation section; And in the source analyzing unit comprises the step of predicting the amount of wear of the chain pins by using the separation roller and the frictional sound between the teeth.