A seatbelt webbing retractor and a method of assembling a seatbelt webbing retractor including a unitary bobbin having a mounting portion, a first and second annular wall extending perpendicularly from a first and second end of the mounting portion, respectively. The mounting portion of the unitary bobbin defines a plurality of slots through which the seatbelt webbing is passed. The seatbelt webbing retractor also includes a spindle extending through the mounting portion of the unitary bobbin and a retractor frame to which the spindle is mounted. The unitary bobbin is rotatable with respect to the retractor frame and an outer surface of the unitary bobbin is configured to be wrapped with the seatbelt webbing.