Abstract: A bearing unit comprising a stationary radially outer ring with a spherical radially outer surface with a convex shape, a radially inner ring that is rotary about a central rotation axis (X) of the bearing unit and is mounted on a rotating or oscillating shaft. A diametrical through-hole is formed in a first cylindrical portion that is used to receive an elastic element for locking the radially inner ring on the shaft, a plurality of rolling bodies interposed between the radially outer ring and the radially inner ring to enable the relative rotation of the two rings, and a locking element locking the radially inner ring on the shaft. The radially inner ring is provided with two threaded through-holes from opposite sides with respect to the radially outer ring and to the rolling bodies, for housing respective grub screws for locking the radially inner ring on the shaft.

Abstract: A bearing unit having a stationary radially outer ring, a radially inner ring, rotatable with respect to a rotation axis (X) and steadily connected to a rotating shaft, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, a casing, inside which the rings of the bearing unit are housed, a sealing device, and a protection disk. The protection disk may be mounted in an axially external position to the sealing device and fixed to the radially inner ring. Additionally, the protection disk may have a shaped metallic screen, and an elastomer coating over-molded on part of the screen. The protection disk may further be in contact with an axially external surface of the radially outer ring through the elastomer coating, which is provided with two lips, a first lip, non-contacting or contacting and radially external, and a second lip, contacting and radially internal.

Abstract: A bearing unit including a radially outer ring, a radially inner ring, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, a containment cage for keeping the rolling bodies in position defined by a plurality of arched bridges and a plurality of flattened connecting elements interposed between the bridges, a sealing screen interposed between the radially inner ring and the radially outer ring made of composite material provided with an annular central portion having a toroidal surface, a radially inner lug, and a radially outer deflector projecting towards the cage, and a channel between the cage and the sealing screen, axially defined by the lug, the toroidal surface, and the deflector.

Abstract: A support assembly for a moveable, rotating, or sliding shaft includes a casing and a cover. The casing includes a front edge defining an opening and a radially external lateral surface having an annular seat. The annular seat includes an annular groove axially spaced from the front edge and connected to a number of axial grooves that interrupt at least part of the front edge. The cover includes an annular coupling portion extending toward the radially external lateral surface of the casing. The annular coupling includes at least one pair of teeth formed on a radially inside surface of the annular coupling portion and projecting radially inward, each pair of teeth spaced circumferentially from each other, and a plurality of radially internal projections. A bottom wall of the annular groove includes a plurality of depressions alternating with a plurality of projections.

Abstract: A sealing system includes a casing with an internal seat, a front edge, an opening, and a radially external lateral surface defining an annular seat. The annular seat includes an annular groove axially spaced from the front edge, itself including one or more mechanical stops, and a plurality of axial grooves connected to the annular groove and interrupting radially at least part of the front edge. The annular groove defines a bottom wall provided with projections spaced from one another and defining depressions, the projections circumferentially offset from the axial grooves. The sealing system further includes a cover with a bottom wall and an annular coupling portion. A radially inner surface of the annular coupling portion includes teeth projecting radially inward and spaced circumferentially from each other. The annular seat is configured to receive the at least one pair of teeth of the annular coupling portion of the cover.

Abstract: Thermal analysis of a bearing unit, carried out by entering the input and boundary conditions of the application, defining contact areas and load distribution between components of the bearing unit, calculating the conduction resistances and the thermal convection of the components, calculating the heat generated by friction between the components in contact and the heat distribution thereof on a plurality of isothermal nodes which discretize the bearing unit, defining a thermal interaction between the isothermal nodes, thermally balancing the isothermal nodes, calculating the temperature range of the bearing unit, comparing the resulting operating temperature on an isothermal node of a sealing means of the bearing unit and the related maximum allowable temperature, and if the operating temperature and maximum allowable temperature values are different from each other, repeat steps (a) to step (h).

Abstract: Support assembly for movable, rotating or sliding shafts, having a bearing unit adapted to receive the movable shaft, a casing and a cover for fluid sealing an opening of an internal seat of the casing; the bearing unit having a radially outer ring, a radially inner ring and a row of rolling elements between the radially outer ring and the radially inner ring; the support assembly also being provided with: a rear sealing device, placed on the opposite side with respect to the cover, and comprising a metal shield and a vulcanized rubber liner equipped with a first, axially outer, sealing lip and with a second, axially inner, sealing lip the support assembly being characterized in that the rear sealing device comprises a further third sealing lip slidingly contacting the radially inner ring.

Abstract: A support assembly for a movable shaft includes a bearing unit that receives the shaft, a casing, and a cover. The cover includes an annular coupling portion extending towards a radially external lateral surface of the casing. The annular coupling portion has circumferentially spaced teeth projecting from a radially inside surface thereof. The lateral surface includes an annular seat that receives the teeth. The annular seat includes an annular groove axially spaced with respect to a front edge of the casing that defines an opening of the casing and is connected to axial grooves that interrupt radially at least part of the front edge of the casing. A bottom wall of the annular groove has depressions alternating with projections offset with the axial grooves. The annular coupling portion includes radially internal projections that engage with the lateral surface of the casing along portions free of axial grooves.

Abstract: A housing element for food applications having a casing made of metallic material and a cover made of composite material and having a bottom surface which is closed or provided with a through-hole. The housing element is provided with a system for securing the cover on the casing, comprising at least two steps which are formed on the cover and which engage with interference inside at least two corresponding grooves formed on the casing.

Abstract: Support assembly for movable, rotating or sliding shafts, having a bearing unit, a casing and a cover for fluid sealing an opening of an internal seat of the casing; the cover having an annular coupling portion towards a radially outer lateral surface of the casing, the annular coupling portion being provided radially on the inside with at least one pair of teeth projecting radially towards the inside of the cover and spaced circumferentially from each other; the radially outer lateral surface of the casing being provided with an annular groove for receiving the teeth of the cover, which in turn is provided circumferentially with an alternating plurality of depressions and projections; the annular groove having at least one pair of mechanical stops of the at least one pair of teeth of the cover, the mechanical stops extending in a radial direction with respect to corresponding depressions to be flush with the lateral surface of the casing.

Abstract: A housing element for applications in the manufacturing industry having a casing and a cover both made of metallic material, wherein the casing is provided with a groove and a flat mounting surface and the cover is provided with an end portion having a frustoconical side wall, an oblique annular bottom wall, and a securing system consisting in inserting the end portion of the cover inside the groove of the casing, wherein an interference (i) between a radially outer end of the end portion of the cover and a radially inner end of the flat mounting surface of the casing assumes values of between 0.2 mm and 0.5 mm and an angle (?) defined between the frustoconical side wall of the end portion of the cover and the flat mounting surface of the casing assumes values of between 45° and 80°. The interference and the angle facilitate the insertion of the end portion of the cover inside the groove of the casing.

Abstract: A bearing unit having a stationary radially outer ring, a radially inner ring, rotatable with respect to a rotation axis (X) and steadily connected to a rotating shaft, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, a casing, inside which the rings of the bearing unit are housed, a sealing device, and a protection disk. The protection disk may be mounted in an axially external position to the sealing device and fixed to the radially inner ring. Additionally, the protection disk may have a shaped metallic screen, and an elastomer coating over-molded on part of the screen. The protection disk may further be in contact with an axially external surface of the radially outer ring through the elastomer coating, which is provided with two lips, a first lip, non-contacting or contacting and radially external, and a second lip, contacting and radially internal.

Abstract: A sealing device for a sleeve of washing machines, provided internally with bearing units. The device is provided with a stationary first annular screen which integrally carries a first elastomeric element, a second annular rotating screen which integrally carries a second elastomeric element. The first and the second elastomeric elements face each other defining a first annular meatus (M), and a plurality of pairs of annular sealing lips (L1, L2) arranged inside the first annular meatus (M). The first sealing lip (L1) and the second sealing lip (L2) of the plurality of pairs of annular sealing lips (L1, L2) are substantially radially and axially superimposed and have predetermined axial dimensions to be radially and axially separated from each other and to define, inside the first annular meatus (M) and with the first and second sealing lips of the other pairs of annular sealing lips (L1, L2), a tortuous labyrinth (L).

Abstract: A bearing unit having a radially outer ring provided with at least one raceway, a radially inner ring provided with at least one raceway, at least one row of rolling elements interposed between the radially outer ring and the radially inner ring, at least one containment cage for keeping the rolling elements of the rolling element row in position, and a seal interposed between the radially inner ring and the radially outer ring. An anchoring element mechanically locks the seal in a first seat of the radially inner ring, and the anchoring element is housed in a second seat of the radially outer ring.

Abstract: A cover for a bearing housing, in particular intended to be mounted on machinery for the food industry, provided with an end wall transverse to an axis of the bearing housing; with an annular side wall which extends transversely with respect to the end wall; and with an engaging portion towards the bearing housing, which is formed on one end of the side wall opposite to the end wall; a through-opening being formed through the end wall so as to allow the passage of a moving shaft, preferably a rotating shaft, and being surrounded by a reinforcing ring rigidly joined to and integral with the end wall so as to support a sealing element mounted on the through-opening and sealingly engaged by the moving shaft.

Abstract: A bearing unit including a radially outer ring, a radially inner ring, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, a containment cage for keeping the rolling bodies in position defined by a plurality of arched bridges and a plurality of flattened connecting elements interposed between the bridges, a sealing screen interposed between the radially inner ring and the radially outer ring made of composite material provided with an annular central portion having a toroidal surface, a radially inner lug, and a radially outer deflector projecting towards the cage, and a channel between the cage and the sealing screen, axially defined by the lug, the toroidal surface, and the deflector.

Abstract: A bearing unit comprising a stationary radially outer ring with a spherical radially outer surface with a convex shape, a radially inner ring that is rotary about a central rotation axis (X) of the bearing unit and is mounted on a rotating or oscillating shaft. A diametrical through-hole is formed in a first cylindrical portion that is used to receive an elastic element for locking the radially inner ring on the shaft, a plurality of rolling bodies interposed between the radially outer ring and the radially inner ring to enable the relative rotation of the two rings, and a locking element locking the radially inner ring on the shaft. The radially inner ring is provided with two threaded through-holes from opposite sides with respect to the radially outer ring and to the rolling bodies, for housing respective grub screws for locking the radially inner ring on the shaft.

Abstract: Support assembly for movable, rotating or sliding shafts, having a bearing unit adapted to receive the movable shaft, a casing and a cover for fluid sealing an opening of an internal seat of the casing; the bearing unit having a radially outer ring, a radially inner ring and a row of rolling elements between the radially outer ring and the radially inner ring; the support assembly also being provided with: a rear sealing device, placed on the opposite side with respect to the cover, and comprising a metal shield and a vulcanized rubber liner equipped with a first, axially outer, sealing lip and with a second, axially inner, sealing lip the support assembly being characterized in that the rear sealing device comprises a further third sealing lip slidingly contacting the radially inner ring.

Abstract: Support assembly for movable, rotating or sliding shafts, having a bearing unit, a casing and a cover for fluid sealing an opening of an internal seat of the casing; the cover having an annular coupling portion towards a radially outer lateral surface of the casing, the annular coupling portion being provided radially on the inside with at least one pair of teeth projecting radially towards the inside of the cover and spaced circumferentially from each other; the radially outer lateral surface of the casing being provided with an annular groove for receiving the teeth of the cover, which in turn is provided circumferentially with an alternating plurality of depressions and projections; the annular coupling portion of the cover is provided with a plurality of radially internal projections which engage, in sequence, with the lateral surface of the casing along a circumferential portion without axial grooves and with corresponding depressions in the annular groove of the casing.

Abstract: Support assembly for movable, rotating or sliding shafts, having a bearing unit, a casing and a cover for fluid sealing an opening of an internal seat of the casing; the cover having an annular coupling portion towards a radially outer lateral surface of the casing, the annular coupling portion being provided radially on the inside with at least one pair of teeth projecting radially towards the inside of the cover and spaced circumferentially from each other; the radially outer lateral surface of the casing being provided with an annular groove for receiving the teeth of the cover, which in turn is provided circumferentially with an alternating plurality of depressions and projections; the annular groove having at least one pair of mechanical stops of the at least one pair of teeth of the cover, the mechanical stops extending in a radial direction with respect to corresponding depressions to be flush with the lateral surface of the casing.