| 摘要 |
PROBLEM TO BE SOLVED: To provide a disc drive equipment which can prevent the distortion of a hub even if there is a change in temperature, and which can form a labyrinth seal of a high sealing effect. SOLUTION: In a disc drive equipment 1, a non-contact section 10 is formed between the inner surface 23 of a cylindrical section 2, and the outer surface 41 of a yoke 4, wherein the inner surface 23 and the outer surface 41 face each other pinched at a space G. A difference in a quantity of extension and shrinkage between the cylindrical section 22, and the yoke section 4 at the time the temperature changes is absorbed by the non-contact section 10. A first small space G1 is formed between an outer surface 242 of a flange 24 formed at the lower end of the cylindrical section 22 and the inner surface 321 of a side board section 32 formed in a frame 3, and a second small space G2 is formed between the lower face 243 of the flange 24 and the upper face 311 of a bottom plate 31 of a frame 3. Between a corner 244 of the frange section 24 and a corner 312 of the frame 3, a wide space G3 which is wider than the first and the second small space G1 and G2 is formed. |
