A sealing assembly is described, of the type in which a substantially rigid screen adapted to couple with a respective housing seat for the assembly itself on a member to be protected fixedly supports a sealing member of elastomeric material; the screen is made in a plastically deformable material and an outer peripheral portion of the screen, which with the sealing assembly not in use is inclined obliquely in the direction of introduction of the sealing assembly into the seat, is connected to the remainder of the screen through a stamped embossment shaped in such a way as to be able to act as a plastic hinge adapted to allow a rotation of the outer peripheral portion of the screen in a direction opposite that in which the sealing assembly is introduced into the seat during a mounting phase.