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 hub-bearing assembly serves to rotatably mount a soil-working disc on a supporting axle of an agricultural machine. The assembly includes a hub-bearing unit having a radially outer, rotatable outer race from one side of which a flange radially extends for mounting a disc. A sealing device is mounted on an inner side of the hub-bearing unit opposite to the side of the flange. The radially outer surface of the assembly has a portion between the flange and an inner side of the outer race, which is radially recessed so as to serve as a seat for winding agricultural fibers or wires picked up from the fields during use of the agricultural machine. At least one cutting projection extends radially outwardly from the recess to at least facilitate removal of fibers or wires.

Abstract: A bearing unit configured to be clamped on a machine shaft includes a stationary radially outer ring, a rotatable radially inner ring having a radially inner surface, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, and a clamping device that includes a clamping sleeve between the radially inner ring and the machine shaft, the clamping sleeve including a threaded flange portion and a circumferential slit configured to deform and tighten around the machine shaft, and a ring nut to screw onto the threaded flange portion and exert an axial force on the radially inner ring, the radially inner surface of the radially inner ring engages the radially outer surface of the clamping sleeve.

Abstract: The casing (10) of a support assembly for food applications has a housing portion (20) having a through-seat (25) within which a bearing unit is seated. The casing has a flange portion (30) for fixing the casing to a machine. The flange portion has a base surface (35) and at least two through-holes (32) for housing elements for fixing the casing to the machine. The casing has at least two metal bushings (40), equal in number to the number of through-holes, housed stably inside respective through-holes and coaxial with them. The casing has at least two spacers (50), equal in number to the number of through-holes, applied on the base surface of the flange portion opposite the respective through-holes. The casing has at least two inserts (60), equal in number to the number of spacers, and housed with interference inside the respective metal bushings and inside the respective spacers.

Abstract: A casing (10) of a support assembly for food applications has a housing portion (20) having a through-seat (25) inside which a bearing unit is seated. The casing has a flange portion (30) for fixing the casing to a machine. The flange portion has a base surface (35) and at least two through-holes (32) for housing elements for fixing the casing to the machine. The casing has at least two metal bushings (40) housed inside the respective through-holes. The casing includes at least two spacers (50), equal in number to the number of through-holes, applied on the base surface of the flange portion opposite the respective though-holes. Each spacer includes a bushing (51) and a collar (52) coaxial with the bushing. The casing includes at least two inserts (60), equal in number to the number of spacers, housed with interference inside the respective metal bushings and spacers.

Abstract: A bearing unit (10) having an inner ring (20) including, for each side (L) of the bearing unit (10), a shaped groove (23). The bearing unit has an outer ring (30) defining a cylindrical gap (11) with the inner ring. A plurality of rolling elements (40) are disposed inside the gap. A sealing device (50) is mounted on both of the sides of the bearing unit to protect the gap from contaminants and pollutants, and to prevent lubricant inside the gap from leaking out. The sealing device having, for each side, two sealing lips (54) (55) disposed inside the groove, a flexible support arm (56) for the two sealing lips, and an intrinsic control element (100) to control the bending of the arm to control flexibility of the arm and a friction force that a contacting sealing lip (54) exerts on the inner ring.

Abstract: A bearing unit with rolling bodies for use in the food and beverage industry, for example, is disclosed herein. The example embodiments disclosed herein provide that of a bearing unit comprising a radially inner ring including a stainless steel collar with a raceway, on which two sleeves made of reinforced polymeric material are co-molded on opposite sides. Such example embodiments incorporate corrosion resistance properties of a polymeric material without losing the surface hardness properties. As such, the radially inner ring of the bearing unit offers same nominal load values as inner rings are made entirely of metal, but with better corrosion resistance without losing the surface hardness properties.

Abstract: A casing (10) of a support assembly for food applications is made of composite material and has a housing portion (20). The housing portion has a through seat (25) which receives a bearing unit. A flange portion (30) fixes the casing to a machinery. The flange portion has at least one pair of through holes (32) for fastening elements and a surface (35) for contact with the machinery. A plurality of cavities (40, 50, 60, 70, 80, 90) are obtained inside the flange portion and are filled, by over-molding, with oil-free elastomeric material. The cavities include a curvilinear channel (90) and at least a pair of circular channels (60) which present a transverse section (ST) which includes a rectangular section (R) emerging on the surface and, more internal than the rectangular section (R) but adjacent to it, a section (SC) in the shape of a semicircle.

Abstract: A bearing unit having a central axis of rotation and having a radially outer ring, stationary, a radially inner ring, rotatable, and a sealing device, which is provided with: a first shield integral with the radially outer ring and which supports a first sealing element; a second shield integral with the radially inner ring and which supports a second sealing element; wherein the first and the second sealing element are provided with respective first and second shaped surfaces which: are axially opposed but not in contact with each other; define a plurality of ridges and valleys; and are radially staggered so that each ridge of the first shaped surface corresponds to a valley of the second shaped surface and vice versa.

Abstract: A bearing unit includes a radially outer ring having seats formed in a radially inner surface thereof, a radially inner ring, a row of rolling bodies, and at least one sealing device interposed between the rings. Each sealing device includes a shaped shield, an elastomer coating overmolded on the shaped shield, and an anchorage formed on the elastomer coating. The anchorage includes a radially external anchoring lip received by the seat of the radially outer ring that includes a root portion and a projection distal to the root portion. The anchorage also includes an annular cavity formed on a radially internal side thereof, where an axial length of the annular cavity is greater than an axial length of the projection and the anchoring lip is flexed radially inward and at least partially fills the annular cavity.

Abstract: A bearing unit (10) has a radially outer ring (31), a radially inner ring (33), an eccentric locking collar (40), a row of rolling bodies (32), and a sealing device (50). The sealing device (50) is arranged on the same side as the locking collar (40) and is interposed between the radially inner ring (33), the radially outer ring (31) and the locking collar (40). The sealing device (50) includes a metal shield (55) stably connected to the radially outer ring (31), and an elastomeric component (60) co-molded on the shield (55) in a radially inward direction. The elastomeric component (60) has a plurality of lips, of which at least one lip (64, 65) is in contact with the locking collar (40).

Abstract: A bearing unit comprising rolling elements, housed in a radially inner mounting seat of a casing. The bearing unit includes a radially outer and stationary coated ring provided with a metal ring and a liner of elastomeric material integral with a radially outer surface of the metal ring, a radially inner ring, which is rotatable with respect to an axis of rotation (X), and a row of rolling elements interposed between the coated ring and the radially inner ring. The elastomeric material of the liner is a vulcanized thermoplastic material. The liner is co-molded onto the radially outer surface of the metal ring and may include a cylindrical body and at least two annular protuberances which fit inside corresponding anchoring grooves formed on the surface of the metal ring.

Abstract: A bearing unit is disclosed, which includes a new labyrinth sealing device designed for use in the ventilation industry that prevents entry of contaminants therein. The sealing device according to the present disclosure provides a “contactless” sealing device, i.e. one without contacting elements (for example elastomer lips); and a bearing unit with a low frictional torque, due only to the internal geometry and the efficiency of the lubricant, but certainly without any contribution from the sealing devices. The sealing devices comprises a plurality of shields, and wherein the combination and structural orientation of these shields creates a long, narrow labyrinth L with many changes in direction, and therefore a path for external contaminants with significant head loss. Consequently, any contaminants that make into the bearing unit, passing through the entire labyrinth L, will be negligible.

Abstract: A bearing unit for a marble cutting machine, comprising a radially outer ring, rotatable about an axis of rotation (X) of the bearing unit and provided with a radially outer flange portion; a stationary radially inner ring having a raceway and a through hole; a row of rolling bodies interposed between the radially outer ring and the radially inner ring; a seat formed in the radially inner ring and shaped as a portion of a circular crown; and a sensor fit in the seat, wherein a ratio between an internal diameter (D) of the through hole and an axial thickness (t) of the radially inner ring is between 6.7 and 11.1.

Abstract: A bearing unit with rolling bodies for use in the food and beverage industry, for example. The bearing unit may have a high resistance to wear and to corrosion and may have a radially outer ring, stationary, a radially inner ring, rotatable with respect to an axis of rotation (X), and a sealing and protection device mounted on the radially inner ring and on opposite sides of the radially outer ring, both to protect the radially outer ring from the action of external contaminants and to prevent any such external contaminants from getting into a gap between the radially outer ring and the radially inner ring. The bearing unit may further have protective layer being arranged in contact with the radially inner ring, and being made of composite polymeric material to isolate and protect the radially inner ring from external contaminants.

Abstract: A support assembly for moving shafts, comprising a bearing unit positioned in a casing, and a cover for fluid sealing the casing. The support assembly comprises double level of protection provided by two distinct sealing devices that keep the bearing unit protected from washing liquid even in the most demanding conditions of use. The better sealing configuration aids in overall better sealing of the bearing unit; greater resistance to contaminants; and improving the sealing performance of the whole support assembly.

Abstract: A bearing unit for a marble cutting machine has a radially outer ring, rotatable with respect to an axis of rotation (X) and is provided with a radially outer flange portion. Additionally, the bearing unit is provided with a stationary radially inner ring with a through hole in which the ratio between a dimension of an internal diameter (D) of the through hole and a dimension of the axial thickness (T) of the radially inner ring is between about 6.7 and about 11.1. A row of rolling bodies is interposed between the radially outer ring and the radially inner ring. A sealing shield is made of composite material and interposed between the radially inner ring and the radially outer ring, rotatable with respect to the rotation axis (X) and steadily anchored to the radially outer ring. The shield is provided with a sensor molded in it.

Abstract: A modular tool (10) for measuring the disassembly torques of a metal shield (36) of a seal (35) for a bearing unit (30). The tool (10) has a torque gauge (20) equipped with a hexagonal key (22). A base element (40) is rotationally integral with the torque gauge (20). A modular element (50) is rotationally integral with the base element (40) and with the shield (36) of the bearing unit (30). The tool includes a support platform (6) for the bearing unit (30). The base element (40) is invariable with respect to the size of the bearing unit (30). The modular element (50) has a variable size according to the size of the bearing unit (30).

Abstract: A pinion bearing unit (10) has a pinion (20) with a cylindrical and radially internal seat (21), and a bearing unit (30) housed inside the seat (21). The pinion (20) has at least one pair of fins (40, 40?). Each of the fins being arranged on a respective outer annular wall (22, 22?) of the pinion (20) and extending axially on opposite sides of the seat (21) in order to be deflected by 90°, abutting the bearing unit (30), such that the bearing unit (30) is locked axially inside the seat (21).

Abstract: A bearing unit (10) having an inner ring (20) including, for each side (L) of the bearing unit (10), a shaped groove (23). The bearing unit has an outer ring (30) defining a cylindrical gap (11) with the inner ring. A plurality of rolling elements (40) are disposed inside the gap. A sealing device (50) is mounted on both of the sides of the bearing unit to protect the gap from contaminants and pollutants, and to prevent lubricant inside the gap from leaking out. The sealing device having, for each side, two sealing lips (54) (55) disposed inside the groove, a flexible support arm (56) for the two sealing lips, and an intrinsic control element (100) to control the bending of the arm to control flexibility of the arm and a friction force that a contacting sealing lip (54) exerts on the inner ring.