Umbra Cuscinetti, Incorporated

Umbragroup S.p.a.

Romano Beffa

Luciano Pizzoni

Riccardo Maccaglia

Nicola Borgarelli

Massimiliano Bosi

Marcello Piermarini

Raffaele Picone

Ricardo Maccaglia

A linear electro-mechanical actuator includes a containment structure (), a nut () positioned in the containment structure (), a screw shaft () inserted in the nut () and interconnected with the nut () via a helical recirculating ball coupling, and an anti-rotation mechanism () positioned inside the screw shaft () to prevent the screw shaft () from rotating about the axis (X). The anti-rotation mechanism () includes a guide unit () fixed cantilever-style to the containment structure () and connected to the screw shaft by a non-rotational coupling.

Linear electro-mechanical actuator

A linear electro-mechanical actuator, includes a containment structure (), one or two pushers facing each other (), a nut () rotatable about an axis (X) driven by a driving force, a screw shaft () inserted in the nut (), connected to the pushers and interconnected with the nut () via a helical recirculating ball coupling (), and an anti-rotation mechanism () acting on the screw shaft () to prevent the screw shaft () from rotating about the axis (X). The anti-rotation mechanism () includes a pair of fixed guide bars (), coupled in a sliding fashion with the screw shaft () and extending along a direction parallel to the axis (X) and spaced from the axis (X).

Linear electro-mechanical actuator with built-in anti-rotation

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Perugia, Italy

Romano Beffa