Abstract: A vibration damped rotary disk is provided and includes a pair of circular disk panels disposed in side-by-side superposed relation. The panels include shallow concentric and opposing annular recesses formed therein of a radial extent greater than one-half the radial extent of the panels and spaced inwardly of the outer marginal portions of the panels. A filler of mechanical vibration dampening and absorbing material is disposed in and fills the recesses and the outer marginal portions of the disk panels disposed outwardly of the recesses are secured together. Preferably, circumferentially spaced rivets are utilized to secure the outer marginal portions of the disk panels together and those opposing surfaces of the disk panels disposed radially outwardly and radially inwardly of the recesses have a thin layer of Teflon interposed therebetween, the disk panels being constructed of metal.