| 摘要 |
There is provided a rotor assembly for a motor and a motor including the same, the rotor assembly including: a hub including a magnet electromagnetically interacting with a coil to generate rotational driving force; and a disk mounting part included in the hub and having a disk mounted thereon, wherein contact surfaces of the disk and a contact part that contacts the disk are formed of the same material, have the same roughness, and are coupled to each other.
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