The rotational attachment mechanism may be a screw-on mechanism, press-fit mechanism, or welded mechanism.

Said plates are connected to a threaded inertia gear (7) for positioning them in relation to each other, the latter being driven by a gear (12) of a controlled drive unit (13, 14).

This results in a simplified construction and easily assembled worm gear.

The screw mechanism (160) connects between the base (118) and the part (140).

When an overload is applied to the screw mechanism at the upper limit, the engaging part (68) is deformed to prevent the screw mechanism from breaking because of the overload.

The inhaler includes a screw-threaded mechanism which is operable to dispense the predetermined dose for inhalation.

The linearly displaceable member of the screw mechanism is drivingly connected to a pump mechanism for providing a flow of medium.

The bottom surface of the worm and worm wheel drive mechanism (7) is fixed to a base (11).

A screw actuator comprises a housing (1) , a screw mechanism (4) with a nut (6) and a screw (5) , as well as a motor (7) which ~s drivingly connected to the screw.

The screw mechanism support and the actuating member connection allow rotations having at least one axis transverse with respect to the longitudinal screw mechanism axis, so as to compensate transverse loadings and bending moments.

A ball screw mechanism (28) is provided between the piston (21) and the housing (5).

A ball screw mechanism (28) is formed between the piston (21) and the rotating member (25).

Each roller threaded drive (19) is driven by the hollow shaft electric motor (23).

The electrically operated disc brakes (10, 210) may include a high efficiency screw and nut mechanism (60) and/or a one-way clutch mechanism (230).

The actuator comprises a screw mechanism with a nut (10) and a screw (11), both of which can be rotated by means of an electric motor (1), and a gear mechanism interposed between the electric motor and the screw mechanism.