Importance

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Abstract

A damping material for mechanical parts includes a non-coupling interface that comes into contact without being metallically coupled. The non-coupling interface is formed from the surface to a predetermined internal depth, and may assume a non-penetrative structure. In such circumstances, it is preferable that a depth of the non-coupling interface be equal to, or greater than 20% of a dimensional thickness in the same direction. The non-coupling interface may be formed so as to penetrate from one surface to another surface. The damping material for mechanical parts is a gear damping material for forming a gear having damping characteristics, and has: a main body portion formed in a ring shape or in a disk shape; and a predetermined portion to form teeth shape provided at the outer periphery side face or at the inner periphery side face. The non-coupling interface is formed from at least one end face in an axial direction of the main body portion.

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First Claim