Vehicle floating disc hub assembly

A vehicle floating disc hub assembly comprising:

• a hub portion comprising:
• a bearing housing disposed on an inner circumferential surface of the hub portion and having a bearing mounted therein, wherein the bearing is configured to couple to an axle;
• a flange portion disposed in one end in an axial direction;
• and
• a plurality of disc fastening grooves disposed in an other end;
• and
• a disc portion configured to be mounted on the hub portion and comprising a hub fastener corresponding to and configured to be fastened to the plurality of disc fastening grooves through a fastening member,
• wherein the fastening member comprises:
• a spring gap mounted between the plurality of disc fastening grooves and the hub fastener to form a contact force with each of the plurality of disc fastening grooves;
• a spring plate formed to have an elastic force in the axial direction of the axle and disposed in the spring gap;
• and
• a fastening bolt configured to couple to the hub fastener through the spring plate,
• wherein the plurality of disc fastening grooves are formed such that a direction of an outer peripheral surface of the hub portion is open, and
• wherein the disc portion is formed to have a floating structure configured to be freely deformed in the axial direction and in a direction opposite to a centrifugal direction without forcibly constraining thermal deformation.