Patent ID: 6783094
Filing Date: 2004-08-31
Classification: G11B

Abstract:
A recording-media tape reel comprising:a cylindrical hub with its center line as an axis of rotation; and a pair of disc flanges extending radially from upper and lower ends of said hub so that space for winding recording-media tape is formed between an outer periphery of said hub and opposing interior surfaces of said flange pair; wherein H1âˆ’&agr;>H2+&bgr; met, when H1 is a reference value for a distance from a reference plane, perpendicular to said rotation axis along an exterior surface of one of the two flanges, to a radially inner end of the interior surface of said one flange, &agr; is a tolerance on a negative side of H1, H2 is a reference value for a distance from said reference plane to a radially outer end of said interior surface of said one flange, and &bgr; is a tolerance on a positive side of H2.