A spindle motor rotatably drives recording discs, and includes a base plate, a stator, a rotor hub, a yoke, a rotor magnet, and a hydrodynamic bearing. The hub includes a disc support cylindrical portion for supporting the recording discs in the radial direction, an annular disc mount portion formed on an outer circumference of the cylindrical portion for mounting the recording discs thereon, and an annular projection formed on the lower portion of the disc mount portion in the axial direction and having an outer circumference to which the yoke is fixed. The disc mount portion is formed with an annular non-contact surface formed on the upper portion in the axial direction, and an annular disc receiving face formed around an outer circumference of the non-contact surface and upward of the non-contact surface in the axial direction for being in contact with the recording disc in the axial direction.