Device restitution effort to passive flywheel for a motor vehicle steering system of the steer-by-wire type

An effort reproduction device the passive wheel (2) for a motor vehicle steering system of the steer-by-wire type, comprising a reversible reduction gear (12) to be mechanically connected to a steering wheel (4) the device further comprising two spring assemblies return (20a, 20b) respectively extending along an axis (42a, 42b) and having a first end (26) pivotally mounted on a wheel (16) as well as a second end (28) pivotally mounted on a fixed point (40) of the device, the two sets being arranged so that in projection in an orthogonal projection plane to the axis (18) in a equilibrium position of the wheel (16), the two axes (42a, 42b) have an axial symmetry.