Abstract: A support assembly includes a casing having an internal assembly seat and a cylindrical seat formed on an axially inner side of the internal assembly seat, a bearing unit mounted within the internal assembly seat of the casing and including a stationary radially outer ring inserted in the assembly seat of the casing and comprising an axially internal annular surface and a rotating radially inner ring. A sealing device interposed between the two rings includes a first shield interference fitted onto a radially outer surface of the radially inner ring and a second shield arranged on an axially inner side of the first shield and interference fit onto the cylindrical seat of the casing. A spacer is positioned axially between the radially outer ring and the second shield, and may be formed separately from or integrally with the second shield.

Abstract: A support assembly (10) for movable shafts has a bearing unit (30) with a stationary radially outer ring (31) and a rotatable radially inner ring (33). The bearing unit (30) is engaged by the movable shaft. A sealing device (40) closes the bearing unit (30) in a fluid-tight manner. The sealing device (40) has an annular first sealing element (60) made of elastomeric material and is integral with the radially outer ring (31). The support assembly (10) includes a cover (70) made of plastic material, which is overall cup-shaped. The cover (70) is integral with the radially inner ring (33) and has a substantially cylindrical shaped side wall (73) with an annular portion at one end (74). The support assembly (10) includes an annular second sealing element (80) made of elastomeric material which is fully supported by the annular portion (74) of the cover (70) and co-moulded thereon.

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, a radially inner ring, and a sealing device. The inner ring includes a first radially outer surface formed, a second radially outer surface adjacent to the first, and a radial step connecting the radially outer surfaces. The sealing device includes a shaped shield mounted on the outer ring and an elastomer lining the shaped shield. The elastomer lining includes at least three radial contacting lips. A first, axially outer most radial contacting lip is in sliding contact with the first radially outer surface of the inner ring, a second, axially inner most radial contacting lip is in sliding contact with the second radially outer surface of the inner ring, and a third radial contacting lip positioned between the first and second radial contacting lips and in sliding contact with the second radially outer surface of the inner ring.

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 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 bearing unit (30) has a radially outer ring (31) rigidly connected to the pinion (20) and a radially inner ring (34). The pinion (20) has an axially inner and radially inner shoulder (40) which axially delimits the seat (21) and prevents the pinion (20) from moving axially outwards with respect to the bearing unit (30). The pinion bearing unit (10) does not have a retaining ring in the seat (21).

Abstract: A thin section bearing unit (10) for multiwire machines. The bearing unit has a central axis (A) of rotation, an inner ring (20), and a flanged rotatable outer ring (30). Defined between the inner and outer rings is a cylindrical cavity (90) for respective rolling elements (40). The inner ring (20) has an outer raceway (22) with an intermediate circumferential groove (23) containing lubricating grease for keeping the raceway (22) lubricated. The bearing unit (10) also has a hydraulic network (60) for distributing the lubricating grease for lubricating the cavity (90). The hydraulic network (60) including at least one axial duct (61) passing through the inner ring (20) and a related radial duct (62) formed in the inner ring (20) between the duct (61) and the circumferential groove (23) of the outer raceway (22).

Abstract: A bearing unit (10) has radially outer and inner rings (31), (33), rolling bodies (32), a cage (34) containing the rolling bodies, and two sealing devices (35) arranged axially on opposite sides of the bearing unit (10) and interposed between the radially inner ring (33) and the radially outer ring (31). Each sealing device (35) is provided with first shield (40) and a second shield (50). The first shield (40) is sealed, axially inwards, against a support surface (31?) of the radially outer ring (31) and is stably inserted in a first seat (31a) of the radially outer ring (31). The second shield (50) is interference fitted on a radially outer surface (33a) of the radially inner ring (33) and axially outside the first shield (40). The first and second shields (40), (50) generate a tortuous path (P) therebetween to hinder the ingress of contaminants into the bearing unit (10).

Abstract: A bearing unit includes a radially outer ring, a radially inner ring, and a sealing device. The inner ring includes a first radially outer surface formed, a second radially outer surface adjacent to the first, and a radial step connecting the radially outer surfaces. The sealing device includes a shaped shield mounted on the outer ring and an elastomer lining the shaped shield. The elastomer lining includes at least three radial contacting lips. A first, axially outer most radial contacting lip is in sliding contact with the first radially outer surface of the inner ring, a second, axially inner most radial contacting lip is in sliding contact with the second radially outer surface of the inner ring, and a third radial contacting lip positioned between the first and second radial contacting lips and in sliding contact with the second radially outer surface of the inner ring.

Abstract: A support assembly includes a casing having an internal assembly seat and a cylindrical seat formed on an axially inner side of the internal assembly seat, a bearing unit mounted within the internal assembly seat of the casing and including a stationary radially outer ring inserted in the assembly seat of the casing and comprising an axially internal annular surface and a rotating radially inner ring. A sealing device interposed between the two rings includes a first shield interference fitted onto a radially outer surface of the radially inner ring and a second shield arranged on an axially inner side of the first shield and interference fit onto the cylindrical seat of the casing. A spacer is positioned axially between the radially outer ring and the second shield, and may be formed separately from or integrally with the second shield.

Abstract: A support assembly for a shaft includes a bearing unit adapted to receive the shaft and a cover for sealing the bearing unit. The bearing unit includes a radially outer ring and a radially inner ring, and the cover includes a bottom wall, a side wall integrally connected to the bottom wall, and a engaging portion extending from a distal end of the side wall. The engaging portion forms a dynamic seal with an axially outer annular surface of the radially outer ring. The cover is secured to the radially inner ring of the support assembly.