Flexible disk assembly

The utility model discloses a flexible disk assembly. The flexible disk assembly comprises a flywheel ring gear and a flywheel disk which is fixedly connected with the flywheel ring gear, the edge of the flywheel disk is provided with retaining sides which surround the disk surface in a circle, multiple protruding seats which abut against the retaining sides are arranged on the disk surface of the flywheel disk, a mounting hole is formed in each protruding seat, wherein the flywheel disk and the protruding seats and the retaining sides which are arranged on the flywheel disk are formed into integrity by punching, arc-shaped holes which are in one-to-one correspondence with the protruding seats are formed in the disk surface of the flywheel disk, each arc-shaped hole is adjacent to the corresponding protruding seat, and the concave direction of each arc-shaped hole faces to the corresponding protruding seat. According to the flexible disk assembly, the structure is simple, the process machining is simple and convenient, the structural strength of the flexible disk assembly can completely satisfy the normal use of a whole product, and meanwhile the service life is prolonged.