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 sensor bearing unit comprising: a bearing comprising first and second rings, each provided with an outer cylindrical surface, an inner cylindrical surface, and lateral surfaces, and an impulse ring provided with a target holder being axially mounted against one of said lateral surfaces, and comprising a fixing portion secured to the first ring and coming into radial contact with said one of cylindrical surfaces and an abutment portion coming into axial contact with said lateral surface. Besides, at least one of the lateral and cylindrical surfaces is provided with a textured area comprising a plurality of ribs, and the abutment portion and/or the fixing portion of the target holder is made of a hard material and comprise a soft coating covering the hard material and inside which the ribs are engaged.

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 rolling-element bearing for a device lubricated with a fluid includes first and second bearing rings defining an interior therebetween in which rolling elements support the first ring for rotation relative to the second ring. A pumping device is located at the interior for pumping the fluid into and/or out of the interior when an element of the rolling-element bearing rotates and the rolling-element bearing is at least partially submerged in the fluid. The pumping device may be a ring having vanes that is attached to the first bearing ring or to a cage of the bearing.

Abstract: A method of determining the center of loading of a rolling element includes providing a rolling element body and at least three load sensors. The sensors are each positioned within a bore of the rolling element body at a separate distance from a reference position. Load measurements are taken with each one of the sensors at various positions about the circumference of the bearing and the center of loading is calculated at each one of the positions to determine the variation in axial loading about the bearing circumference.

Abstract: A method and equipment for forming a front toothing having a plurality of radial teeth on an annular collar of an inner ring of a wheel hub, wherein a plurality of first knives are axially and sequentially impressed on the annular collar and have a first predetermined circumferential profile (P1) configured to form radial reliefs which are spaced by imprints and have a rounded circumferential profile corresponding to the profile of the ridges of the radial teeth to be obtained; thereafter, a plurality of second knives are axially and sequentially impressed on the annular collar inside the imprints and have a third predetermined circumferential profile (P3) configured to reproduce in reverse at least part of respective opposite flanks of the radial teeth of the front toothing to be obtained.

Abstract: A sealing assembly for bearings, in particular for use in agriculture, comprising a primary sealing barrier and a secondary sealing barrier, which are arranged in series along a potential path (P) of ingress of contaminants into the bearing, and have, respectively, a first seal and a second seal with a plurality of contact lips. The contact lips of the first and second seal with a plurality of contact lips may be static lips that do not rotate about an axis (A) of rotation of the bearing.

Abstract: A wheel hub unit provided with a radially outer ring, which is stationary during use; a radially inner ring, which is rotating during use; at least one row of rolling elements interposed between the radially outer ring and the radially inner ring; and a sealing assembly, which is interposed between the radially outer ring and the radially inner ring. The sealing assembly defines, cooperating with the radially outer ring or with the radially inner ring, a shield of at least one labyrinth seal. The labyrinth seal does not have a circumferential symmetry, but comprises an upper portion and a lower portion with respect to an axis of symmetry (A) of the wheel hub unit and is provided with an angular interruption of the shield formed on its lower portion corresponding to the lower side of the wheel hub unit so as to increase an outflow section thereof from the said labyrinth seal. Thereby, facilitating gravity drainage of contaminants present inside the sealing assembly.

Abstract: A bearing unit having an axis of rotation (X) for a wheel hub assembly for motor vehicles includes stationary radially outer ring, a rotatable wheel hub or first radially inner ring, a rotatable second radially inner ring having an axially external first axial contact edge, an axially internal second axial contact edge having a radially external first contact surface configured to abut a surface of the first radially inner ring, a radially internal second contact surface, and a relief groove interposed radially between the first contact surface and the second contact surface, two rows of rolling bodies interposed between the radially outer ring and the second radially inner ring, and a joint including a bell, the second contact surface contacting a surface of the bell and axial locks the radially inner ring, and the relief groove reducing contact between the second contact edge and the surface of the bell.

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: An electrically conductive assembly prevents current flow through the raceways of a bearing and includes a conductive base plate having a centerline and including an annular main body with an inner and outer radial ends. One or more mounting lugs extend radially outwardly from the outer radial end of the main body and are connectable with the exterior surface of an outer member to secure the conductive assembly to the outer member at a position spaced axially from the bearing. The main body may be flat and include one or more stiffening flanges extending axially from and at least partially circumferentially about the inner perimeter of the main body and/or the outer perimeter of the main body and/or the outer perimeter of the mounting lugs. Alternatively, the main body is formed as a circular hub having a bore for receiving the conductor and each mounting lug includes two stiffening ribs.

Abstract: A system for determining at least one defect of a bearing providing a first ring and a second ring capable of rotating concentrically relative to one another, first and second distance sensors mounted on the first ring of the bearing for measuring first and second differential distances between the first ring and the second ring, a storage device for storing each measured differential distance, a device configured to determine a first temporal profile of a radial relative displacement between the first and second rings, and a second temporal profile of an axial relative displacement between the first and second rings according to the stored measured differential distances in the storage device, and a device that identifies a defect of the bearing from the temporal profile.

Abstract: A bearing device includes a first ring and a second ring mounted for relative rotation and an insulating sleeve mounted on the second ring. The insulating sleeve incudes a socket and an electrically insulating liner, the liner contacting the second ring. The socket includes an outer surface and an inner surface opposite the outer surface, and the outer surface and the inner surface delimit a radial thickness of the socket. The insulating liner is overmolded on the second ring of the bearing and on the outer surface and/or the inner surface of the socket. The socket and the insulating liner are shaped such that the insulating liner is prevented from moving circumferentially relative to the socket.

Abstract: An electrical machine having a non-rotating part, a rotating part, at least one bearing supporting said rotating part and having a rotating ring and a non-rotating ring, a fiber grounding brush fixed to said non-rotating part and having a support secured to the non-rotating part and a plurality of conductive fibers having a first end secured to said support and a second free end, opposite to said first end, extending towards the rotating part, and a conductive sleeve having a base fastened to the rotating part or to the rotating ring of the bearing and a conductive layer covering at a portion of a surface of the base, the second free end of the conductive fibers of the fiber grounding brush being in contact with said conductive layer.

Abstract: A swivel bearing unit may have a stationary radially outer ring and a rotatable radially inner ring. The swivel bearing unit may further have a double row of rolling members interposed between the radially outer ring and the radially inner ring, a casing, inside which the rings of the bearing unit are housed, and a sealing device. The sealing device may include an elastomer seal co-molded onto a shaped metal screen stably anchored to the housing. The elastomer seal may be provided with a first radial lip and with a second axially external radial lip. Both the first radial lip and the second radial lip make sliding contact by respective contacting edges with a radially external surface of the radially inner ring. The first radial lip may have a thickness (SP1) greater than a thickness (SP2) of the second radial lip.

Abstract: A multi-row rolling-element bearing includes first and second bearing rings and first and second rows of rolling elements therebetween. A cage between the first and second bearing rings has a first annular side part having a plurality of axially extending first bridge elements and a second annular side part having a plurality of axially extending second bridge elements connected to the first bridge elements to form bridges and to form pockets therebetween. At least one rolling element of the first row of rolling elements and at least one rolling element of the second row of rolling elements are located in each of the plurality of pockets.

Abstract: A bearing device includes first and second rings each having end faces and being configured to rotate relative to one another, and the second ring has an annular groove. A socket having an electrically insulating sleeve is mounted on the second ring with the insulating lining radially interposed between the second ring and the socket. End faces of the electrically insulating lining each have an annular groove with a bottom that is offset axially inward relative to the respective first and second end faces of the second ring and to the respective first and second end faces of the socket. A method includes grinding end faces of the socket and/or second ring to reduce an axial depth of the grooves in the insulating layer.

Abstract: A wheel bearing assembly, preferably for trucks, includes a wheel adapter and a bearing unit, which has at least one first bearing ring and one second bearing ring, and a drive element. The wheel adapter is configured to connect the first bearing ring to a wheel, the first bearing ring preferably having at least one threaded bore to interact with at least one corresponding attachment means, preferably a screw, in order to connect the wheel adapter and the drive element to the first bearing ring. At least one rotation-securing element is provided that is configured to secure the connection between the wheel adapter and/or the drive element and/or the first bearing ring and/or the attachment means against rotation.