A shaft connecting device for a form-fitting rotational connection of a hub with a shaft, - wherein the shaft connecting device comprises a form-fitting shaft-hub connection, - wherein the shaft-hub connection has an axial degree of freedom for inserting a shaft section of the shaft into the hub and for removing the shaft section of the shaft from the hub, - wherein the shaft connecting device has at least one axial securing element for axially securing the shaft-hub connection, - wherein the axial securing element has an extended position in which it protrudes into an axial securing opening, whereby the axial degree of freedom of the shaft-hub connection is blocked, - and wherein the axial securing element has a retracted position in which the axial degree of freedom of the shaft-hub connection is released, - wherein the shaft connecting device comprises an actuating device for actuating the axial securing element, - wherein the actuating device can be latched in an open position in which the axial securing element can be moved or is moved into its retracted position, - and wherein the actuating device can be latched in a closed position, in which the axial securing element can be moved or is moved into its extended position. characterized in that the actuating device comprises - at least one latching nose, - at least two latching recesses, - an abutment body rigidly connected with the hub, - and an actuating element movable with respect to the abutment body and adapted to be latched relative to the abutment body by inserting the latching nose into one of the latching recesses, wherein the actuating device is latched in its open position when the latching nose is arranged in one of the two associated latching recesses, and wherein the actuating device is latched in its closed position, when the latching nose is arranged in the other of the two associated recesses. - wherein the shaft connecting device comprises a form-fitting shaft-hub connection, - wherein the shaft-hub connection has an axial degree of freedom for inserting a shaft section of the shaft into the hub and for removing the shaft section of the shaft from the hub, - wherein the shaft connecting device has at least one axial securing element for axially securing the shaft-hub connection, - wherein the axial securing element has an extended position in which it protrudes into an axial securing opening, whereby the axial degree of freedom of the shaft-hub connection is blocked, - and wherein the axial securing element has a retracted position in which the axial degree of freedom of the shaft-hub connection is released, - wherein the shaft connecting device comprises an actuating device for actuating the axial securing element, - wherein the actuating device can be latched in an open position in which the axial securing element can be moved or is moved into its retracted position, - and wherein the actuating device can be latched in a closed position, in which the axial securing element can be moved or is moved into its extended position. - at least one latching nose, - at least two latching recesses, - an abutment body rigidly connected with the hub, - and an actuating element movable with respect to the abutment body and adapted to be latched relative to the abutment body by inserting the latching nose into one of the latching recesses,