Abstract: Freewheel with reduced wear and noisiness, in which sprags are housed oscillating in respective containment slots obtained in the hub. Said containment slots have at their end a concave wall against which the sprag is to thrust and bear, at the other end a concave wall for holding the sprag and, between one and the other ends, a convex wall having a throat in which is housed a spring. The sprags are able to engage with stepped notches formed circumferentially in the shaft, having, mutually orthogonal, a thrust wall and a bearing surface.

Abstract: The present invention relates to a support device for elements protecting rotating shafts, in particular telescopic cardanic shafts, wherein, in each semi-shaft terminating with a fork, is present an inner rolling race for balls, race which is obtained circumferentially exterior in a cylindrical portion of the fork and an outer rolling race on two semi-shells coaxial to the fork and mutually opposite, and a cage for the balls. The semi-shells are contained between the ring nut, provided with retaining edges, and the cylindrical fork portion.

Abstract: The present invention relates to a lubricating device for telescopic shaft with axial conduits formed in the relatively sliding tubular parts, with conformal profile. It comprises a lubricating sleeve in the inner tubular part connected, internally thereto, to a grease distributor element integrally movable with the same inner tubular part, inside the outer tubular part. The inner and outer tubular parts comprise axial conduits between their opposite surfaces. The distributor element presents two segments, one stably inserted in the inner tubular part, the other one able to slide with reduced play in the inner profile of the outer tubular part. Inside the distributor element a passage of the grease to the axial conduits is obtained.

Abstract: A protective casing with ring for shafts, in particular cardanic shafts. It comprises, coaxially, a casing, a sleeve ring, and a tubular element. A first end of the sleeve of the ring is destined to engage with a circumferentially groove of the joint, and a second end of the sleeve is adjacent to a constraining end of the casing encompassing the ring. The ring and the casing present, in their respective constraining ends, a multiplicity of hook shaped circumferentially equidistant protrusions, destined to be juxtaposed alternatively forming a circumferential throat for a split elastic locking ring. A rigid annular safety element may cover said constraining ends of the casing and of the ring.