SHAFT, HUB, AND SHAFT-HUB CONNECTION, AND ELECTRIC ACTUATOR

Shaft (10) for transmitting a torque and/or an axial force, with a shaft longitudinal axis (12), a shaft outer surface (14), and a shaft end (16), wherein the shaft outer surface (14) has at least one recess (18) with an axial recess wall (20) and a radial recess wall (22) adjoining the axial recess wall (20), wherein the at least one recess (18) is open axially in the direction of the shaft end (16), and wherein the radial recess wall (22) has a recess radius (28) such that the radial recess wall (22) has, at least in sections, a concave recess arc shape pointing away from the shaft longitudinal axis (12), as well as Hub (48) with a hub longitudinal axis (50), wherein at least one hub arc section (56) has a convex hub arc shape pointing toward the hub longitudinal axis (50), Shaft-hub connection (68) with a shaft (10) and a hub (48), as well as Electrical actuator with a shaft-hub connection (68).