Systems, methods, and apparatus are disclosed for transferring a rotational force. Apparatus include a shaft member that has a first end configured to receive a rotational force from a first mechanical component, and configured to receive a torsional load in response to receiving the rotational force. The shaft member also includes a second end configured to provide the rotational force to a second mechanical component. Apparatus also include a support member that includes a plurality of lobes coupled to the shaft member and configured to transmit the torsional load of the shaft member, where the plurality of lobes is coupled to each other along a central coupling and extend radially from the central coupling, where the plurality of lobes has a spiral geometry along a length of the support member such that an orientation of the plurality of lobes rotates along the length of the support member.