Steer-by-wire steering device (10; 10A; 10B; 10C) comprising: a first element (80, 80B, 80C) that rotates together with an input shaft (21) when a
steering wheel (11) is turned, and that includes a first projection (82, 82B, 82C) that extends from the input shaft (21) in a radial direction; a second element (90, 90A) provided on the input shaft (21), having a
center of mass (G2) spaced relative to the center line (CL) of the input shaft (21) and a second projection (92) that extends into a path of movement of the first projection (82, 82B, 82C), wherein the second element (90) is rotatable together with the first element (80, 80B, 80C) when the first projection (82, 82B, 82C) is in contact with the second projection (92); and a stop (61a) which is arranged in a position suitable for adjoining only one path of movement of the second element (90) when the second element (90) is rotated by the first element (80, 80B, 80C), and which is suitable for limiting a rotation of the
steering wheel (11) by means of the input shaft (21) when the second projection (92) is in contact with it, wherein the second projection (92) comprises a
radial projection (92a) extending in the radial direction from the second base (91) and an
axial projection (92b) extending in the direction along the axial line (CL) from the
radial projection (92a), and wherein the
axial projection (92b) is able to rest against the first projection (82, 82B, 82C) and against the stop (61a).