Patent ID: 7559493

Claim:
An improvement in a media basket mill having a basket with a basket wall establishing an interior for containing a bed of very small media within the basket, and a rotor having a hub journaled within a basket bearing construct for rotation about an axial direction within the basket while feedstock is passed through the basket, the improvement comprising: a recess within the hub of the rotor, the recess being juxtaposed with the bearing construct and extending in the axial direction away from the bearing construct and into the hub, and in radial directions to expose the bearing construct to the recess and to establish a hub wall between the recess and the interior of the basket; and at least one at least one opening in the hub, the opening extending through the hub wall in a radial direction from the recess to the interior of the basket outside the rotor such that upon rotation of the rotor, media and feedstock in the vicinity of the bearing construct will be directed from the recess through the at least one opening to the interior of the basket and into the bed of media and feedstock outside the rotor, thereby diverting media and feedstock away from the bearing construct and deterring excessive wear which might otherwise result from media and feedstock interacting with the bearing construct during rotation of the rotor.