Abstract: An electrical machine includes a non-rotating part, a rotating part, at least one bearing that includes a rotating ring and a non-rotating ring and supports the rotating part, a grounding brush fixed and secured to the non-rotating part, and having a free end extending towards the rotating ring of the bearing, and a conductive layer covering a portion of a surface of the rotating ring of the bearing such that the free end of the grounding brush is in contact with the conductive layer.

Abstract: Sensorised wheel hub unit and a method for detecting, in real time, forces and moments applied to an outer ring of the wheel hub unit in which piezoresistive ceramic plates are made of one piece with welded metal plates housed within respective recesses formed in an outer surface of the outer ring over respective races for rolling elements that there is a gap between the plates and a base wall of each recess; the temperature of the outer ring and the amplitude and frequency of first electrical signals (S1) associated with the sensors relating to the same race are analysed to determine a frequency value equal to the frequency of the first signal having the maximum amplitude and as many amplitude values (D1-Dn) as there are sensors associated with that race and each equal to the maximum amplitude of the first signal from each sensor, corrected according to temperature.

Abstract: Sealing device for a wheel hub assembly provided with a rolling bearing, the sealing device being provided with a shield mounted on an outer ring of the bearing and with an annular cylindrical wall having an inner lateral surface mounted on an outer lateral surface of a collar of the outer ring; and with a sealing material fixed to the shield and defined by a pre-formed annular covering of polymer material, preferably but not necessarily rubber or thermoplastic material, formed independently and separately from the shield and mounted on the shield.

Abstract: Wheel hub assembly for motor vehicles, the group having a radially outer ring with at least one raceway, at least one radially inner ring with a related raceway and at least one ring of rolling bodies interposed between the radially outer ring and the radially inner ring, for sliding inside the raceways, at least one raceway being provided with superficial micropores having a depth (H) between 0.05 ?m and 1.5 ?m and defining respective micro-tanks for containing a lubricating grease.

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 cage includes an annular body disposeable between inner and outer rings and having first and second axial ends, inner and outer circumferential surfaces, and a plurality of pockets for retaining rolling elements. The cage includes at least one channel extending axially through the annular body and having a first opening at the first axial end and a second opening at the second axial end. The channel(s) are each configured to direct liquid to flow axially through the bearing when the cage rotates about the centerline. Alternatively or additionally, the cage includes at least one elongated projection extending radially inwardly from the inner circumferential surface or radially outwardly from the outer circumferential surface and extending axially between the first axial end and the second axial end. The projection(s) are each configured to direct liquid to flow axially through the bearing when the cage rotates about the centerline.

Abstract: An elastomeric bearing includes a first race having an axis of rotation, a second race coaxially arranged relative to the first race and spaced from the first race by a gap and a bearing body in the gap connecting the first race to the second race. The bearing body is formed from a first plurality of elastomeric laminae coaxial with the first race and a second plurality of carbon fiber laminae coaxial with the first race, and the elastomeric laminae and the carbon fiber laminae alternate in a direction from the first race to the second race. The carbon fiber laminae may each include multiple sheets of carbon fibers embedded in a thermoplastic such as polyether ether ketone (PEEK).

Abstract: A hub bearing assembly includes a housing with a vertical bore, a bearing outer ring disposed within the bore and coupled with the housing and a bearing inner ring disposed within the bearing outer ring and having a central bore configured to receive a portion of the shaft. A set of rolling elements are disposed between the bearing outer and inner rings. An upper seal is disposed within the housing bore externally of the outer ring and includes an annular elastomeric seal body and a garter spring biasing a seal lip radially inwardly. A lower seal is disposed between the bearing outer and inner rings. Either the bearing inner ring is sized such that upper seal is disposed about the bearing inner ring or the hub bearing assembly further comprises an annular spacer disposed within the upper seal and adjacent to the upper axial end of the bearing inner ring.

Abstract: A bearing assembly includes a housing having an annular recess, an inner ring disposed within the recess and having an inner raceway, and an outer ring disposed about the inner ring and within the housing recess and having an outer raceway. At least one intermediate ring is disposed radially between the inner ring and the outer ring and has an inner intermediate raceway and an outer intermediate raceway. A first set of rolling elements is disposed between the inner ring and the at least one intermediate ring and a second set of rolling elements is disposed between the outer ring and the at least one intermediate ring. A biasing member(s) is configured to bias the inner ring or the outer ring axially toward the other one of inner ring and the bearing outer ring so as to establish a preload within the two sets of rolling elements.

Abstract: A bearing provides an outer ring and an inner ring capable of rotating concentrically relative to one another, at least one of the inner and outer rings being split into a plurality of successive circumferential ring segments. For each pair of facing ends of adjacent successive ring segments of the split-ring, one of the facing ends includes at least one protrusion made in one part with the associated ring segment and protruding into a recess of complementary shape formed onto the other facing end to align the pair of facing ends in radial direction.

Abstract: A method for performing bearing defect auto-detection provides an algorithm for processing condition monitoring data including vibration harmonics of at least one bearing coupled to a rotatable shaft, the bearing having an inner and an outer ring. The algorithm is used to confirm with high degree of confidence that a bearing defect is present or not.

Abstract: A non-locating bearing assembly includes a bearing unit configured to support a rotatable component relative to a stationary component, the bearing unit including a first stationary bearing ring and a second rotatable bearing ring. The rotatable bearing ring is fixedly connectable to the rotatable component, and a bearing carrier is attached to the stationary bearing ring in a rotationally fixed but axially displaceable manner by a combination of a friction fit and an interference fit. The bearing carrier is configured to be fixedly connected to the stationary component.

Abstract: A non-locating bearing assembly includes a bearing unit configured to support a rotating component relative to a stationary component, and the bearing unit includes a first stationary bearing ring and a second rotatable bearing ring that is fixedly connectable to the rotating component. The assembly also includes a bearing carrier to which the stationary bearing ring is attached in a rotationally fixed but axially displaceable manner, and the bearing carrier is configured to be fixedly connected to the stationary component.

Abstract: An electrically conductive assembly for preventing current flow through the raceways of a bearing includes a mounting ring disposeable within a retention groove of an outer member or a bearing outer ring and is formed of an electrically conductive elastic material. The mounting ring has two circumferential ends spaced apart and is deflectable inwardly such that the two circumferential ends displace generally toward each other to reduce the outside diameter of the ring for installation into the retention groove. An arcuate conductor has an outer radial end attached to the mounting ring, an inner radial end engageable with the shaft or the bearing inner ring and two circumferential ends spaced apart to define an arcuate gap when the conductor is installed about a shaft or a bearing inner ring. An electrically conductive path extends between the shaft and the outer member through the arcuate conductor and the mounting ring.

Abstract: A forged outer ring of a tapered wheel bearing incudes a conical ring section having a first end and a second end, a flange section and a central ring section having a first end at the flange section and a second end at the conical ring section. An inner surface of the conical ring section is configured to form a raceway for a first set of tapered rollers. An inner diameter of the first end of the conical ring section is smaller than an inner diameter of the second end of the central ring section and a wall thickness of the second end of the conical ring section is greater than a wall thickness of the first end of the conical ring section.

Abstract: A deep groove ball bearing having an inner ring, an outer ring and a plurality of rolling elements set between the inner and outer rings. The rolling elements have a diameter DW?0.5H1, up to DW?0.35H1. H1 is the radial dimension of the bearing in the sense of thickness and is numerically equal to half of the difference between the outer diameter and inner diameter of the bearing.

Abstract: A cage segment defines a single pocket of a multipart rolling-element bearing cage and includes first and second circumferentially spaced side walls connected by first and second end walls. The first and second side walls and the first and second end walls are formed by at least one sheet metal segment connected at at least one joint.

Abstract: A rolling bearing providing a first ring and a second ring capable of rotating concentrically relative to one another, at least one row of rolling elements arranged between first and second raceways of the first and second rings, and at least one seal provided with at least one sealing lip. The first ring includes at least one first rolling ring having the first raceway and a first sealing ring secured to the first rolling ring. The second ring further includes at least one second rolling ring having the second raceway and a second sealing ring secured to the second rolling ring. The bearing also further includes a sealing module reversibly secured to the first and second sealing rings.

Abstract: A bearing cage is used for accommodating the rolling elements of a rolling bearing; wherein, the bearing cage comprises an annular cage base; when the bearing cage is inserted and installed in the rolling bearing, there is a first circumferential radial clearance between an outer circumferential surface of the cage base and an inner circumferential surface of an outer ring shoulder of an outer ring, and a second circumferential radial clearance between an inner circumferential surface of the cage base and an outer circumferential surface of an inner ring shoulder of an inner ring; the first circumferential radial clearance is smaller or larger than the second circumferential radial clearance. A rolling bearing comprises the bearing cage as described above.

Abstract: A valve stem seal includes an elastomeric annular seal body including a first seal body section and a second seal body section. The first seal body section includes a first seal lip configured to sealingly abut against the valve stem to delimit an oil space and a second seal lip axially spaced from the first seal lip and configured to sealingly abut against the valve stem to delimit an air space. The first seal body section includes an annular channel in a radially inner wall between the first seal lip and the second seal lip that is spaced from the valve stem when the valve stem seal is mounted on the valve stem, and the surface of the channel includes an undercut configured to facilitate a deformation of the second seal lip toward the first seal lip.