Disk chucking device and motor device having the same

摘要

Disclosed is a disk chucking device. A disk chucking device according to an aspect of the invention may include: a chuck housing mounted on one surface of a rotor case being rotatable and having a receiving portion with an outside opening to be connected to a receiving space provided therein; and a chuck chip comprising an elastic plate being elastically transformed when a disc being mounted on the rotor case is inserted and securing an inter circumferential surface of the disc.