SHAFT MEMBER WITH VIBRATION DAMPING FUNCTION

摘要

A shaft member capable of minimizing the occurrence of noise by positively attenuating vibration acting on the metal shaft member having spline grooves and spiral grooves axially formed therein, comprising a metal shaft body having a hollow part and a ceramics material functioning as a vibration absorber filled in the hollow part without clearance, wherein the ceramics material is filled in the hollow part of the shaft body in the state of powder, granular material, or fluid body and formed in a shape matching the hollow part in the hollow part.