Turntable having elastic layer with high contact pressure portion

A turntable for rotatably supporting a disc member on a disc support surface in a state where the disc member is sandwiched and held between the turntable and a clamp member placed opposite thereto, wherein

• the disc support surface is provided with an elastic layer having a predetermined width, and configured to project from the disc support surface,
• at least one of an outer peripheral part and an inner peripheral part of the elastic layer is provided with a high contact pressure portion of which a contact pressure generated by pressing the clamp member thereto is higher than that of any portion of the elastic layer other than the high contact pressure portion,
• the high contact pressure portion is formed by an edge portion projecting to form a predetermined angle in a vertical cross section which cuts across the disc support surface in its radial direction, and
• an inclination angle of an upper surface of the elastic layer is from about 0.5° to about 45°.