Patent ID: 8562503

Claim:
A disk package for a centrifuge rotor of a centrifugal separator adapted for separation of components in a supplied medium, the disk package comprising: a plurality of separating disks provided on each other in the disk package, wherein each separating disk extends around an axis (x) of rotation for the centrifuge rotor and has a tapering shape along the axis (x) of rotation with an inner surface and an outer surface, wherein each separating disk has an inner edge, which defines a central opening of the separating disk, and an outer edge, wherein each separating disk is manufactured of a material, wherein the separating disks comprise a plurality of first separating disks comprising a number of distance members, which extend away from at least one of the inner surface and the outer surface, wherein each separating disk comprises a portion without distance members on the inner surface and the outer surface, wherein each distance member comprises at least one contact zone which abuts an outer surface and an inner surface, respectively, of an adjacent separating disk in the disk package, wherein each distance member abuts one of said portions without distance members of an outer surface and an inner surface, respectively, of an adjacent separating disk in the disk package, the separating disks being pressed against each other with a pre-tensioning force in such a way that the distance members tightly abut said adjacent separating disk, and that the contact zone has a continuously convex shape seen in a section so that the contact zone has a contact area approaching zero.