Abstract: A magnetic bearing, adapted to equip a rotary apparatus. The magnetic bearing comprises: an actuator sub-assembly provided with a magnetic base and at least three actuator bobbins mounted on the magnetic base, and a sensor sub-assembly provided with at least three magnetic sensors associated with the actuator bobbins. At least one sub-assembly amidst the actuator sub-assembly and the sensor sub-assembly comprises at least three sectors mounted together. Each sector includes at least one actuator bobbin when the sector belongs to the actuator sub-assembly, or at least one magnetic sensor when the sector belongs to the sensor sub-assembly. The invention also concerns a rotary apparatus comprising such a magnetic bearing and a method for manufacturing such a magnetic bearing.

Abstract: A double-row spherical roller bearing, comprising: an outer ring having an radially inner spherical raceway and a radially outer peripheral surface, an inner ring having a radially outer curved-shaped raceway, and roller elements arranged in two axially displaced rows. The outer ring includes an outer peripheral surface first circumferential groove. The first circumferential groove has an axial outer peripheral surface width X fulfilling the following relation: L1?X?L2, L2 extends between first end point (intersecting the first normal vector and the outer peripheral surface) and second outer peripheral surface axial end points (intersecting a second normal vector and the outer peripheral surface). The first normal vector is an inverted normal vector of the outer raceway. The second normal vector is an inverted normal vector of the inner raceway. L1 has a length of L2*?. End points of L1 are located equidistant to each respective first and second end point of L2.

Abstract: A bearing assembly for rotatively holding a shaft with respect to a support member and comprises: a bearing, with a rotatable ring and a fixed outer ring to be immobilized within a housing of said support member. An encoder washer is fast in rotation with the rotating ring. At least one sensor is adapted to detect at least one rotation parameter of the encoder washer and a sensor body holds this sensor. An annular flange is used for mounting said sensor body with respect to the fixed outer ring. The annular flange has a first skirt and a second skirt which define, between them and a bottom wall of the flange, an annular recess for accommodating at least a part of the sensor body. In mounted configuration of the bearing assembly, the first and second skirts extend respectively towards the rotatable and fixed rings.

Abstract: A lubricant system is disclosed that is formed by contacting a fibrous network with oil and/or lubricating fluid having an affinity for the fibrous network. The fibrous network comprises oleophilic fibers having a diameter between 50 nm and 10 microns and a length that is at least times the diameter. In addition, the oleophilic fibers have an affinity for the oil and/or lubricating fluid.

Abstract: The disclosure herein relates to a field-programmable gate array for detecting and normalizing partial discharges in a digital signal. The field-programmable gate array includes a filter that receives the digital signal and isolates high frequency information from the digital signal. The field-programmable gate array then normalizes the high frequency information by a compensation value to produce a normalized signal. Further, a comparator of the field-programmable gate array can determine whether the normalized signal exceeds a threshold input. In turn, a counter of the field-programmable gate array increments a counter value in response to each determination that the high frequency information exceeds the threshold input.

Abstract: A hub-bearing assembly including a rolling bearing having an outer ring, at least an inner ring and at least a row of rolling bodies is provided. The rolling bearing including a housing containing the rolling bearing and having an annular cylindrical shape, the housing at one end forming a radial flange, a closing cap, assembled on the housing at the opposite end with respect to the end, where the housing forms the flange, the cap being cup shaped and having a bottom wall, transverse to the rolling bearing axis, and a side wall, constrained to the bottom wall. First assembly means provided on the housing external wall, the first assembly means being fixed and localized in angular correspondence with the ribs and cooperating with second assembly means, movable and realized on the internal surface of the side wall for assembling, in a dismantled way, the cap on the housing.

Abstract: A sensor device for monitoring a component of interest, including at least one sensor for measuring at least one parameter indicative of condition of the component of interest, signal processing device for processing the signals of the sensor, a housing for at least the signal processing device and a mounting feature for mounting the sensor device close to the component of interest. The mounting feature can include a bolt and bracket having a first portion including an opening for inserting the bolt in an insertion direction and a second portion with a surface parallel to the insertion direction configured to mount the housing.

Abstract: A rolling bearing comprising an outer ring, an inner ring, at least one row of rolling elements that are disposed radially between the rings, at least one seal forming a first sealing component that is fixed to one of the rings and engages with the other ring, and at least one flange forming a second sealing component that is fixed to the other ring and is offset axially with respect to the seal on the outer side of the bearing. At least one of the first and second sealing components comprises at least two annular ribs, the other sealing component being mounted axially in contact therewith. At least one closed annular space is delimited by the ribs and by the other sealing component. At least one lubricant is disposed inside the space.

Abstract: A rolling bearing comprising an outer ring, an inner ring, at least one row of rolling elements disposed radially between the rings, at least one sealing flange mounted in a manner to bear axially against a front surface of one of the rings, and a feature for fixing the sealing flange to the ring. The fixing feature at least locally covers a region of the front surface of the ring that is left free by the sealing flange and a part of the flange that is adjacent to the region. The fixing feature is annular.

Abstract: A bearing-hub assembly having a rolling bearing provided with a stationary radially outer ring, at least one rotatable radially inner ring and at least one row of rolling bodies is provided. The bearing-hub assembly includes a light alloy hub, provided with a flanged portion and a cylindrical housing. The cylindrical housing is axially located inside the radially inner ring and is provided with an external lateral surface having a complementary shape with an internal lateral surface of the radially inner ring.

Abstract: A tapered roller bearing includes cage segments each having a pocket that retains one conical rolling element. The pocket is formed by two mutually-opposing circumferential bridges, which each extend between first and second circumferential ends of the cage segment, and at least two mutually-opposing connecting bridges, which connect the two circumferential bridges. The circumferential and connecting bridges have pocket sides, which delimit the pocket. The connecting bridges disposed in the region of the first and second circumferential ends each have a concavely-shaped first guide surface on their pocket and circumferential sides that partially enclose one rolling element. When a rolling element is disposed between the first circumferential end of one cage segment and the second circumferential end of the adjacent cage segment, the circumferential bridges of the two adjacent cage segments do not touch during operation.

Abstract: A hub bearing assembly includes a hub of light metallic material forming a cylindrical portion, on which an inner tubular ring having a raceway is mounted; on the first inner tubular ring a second inner ring having a second raceway is fastened; formed between the cylindrical portion of the hub and the inner tubular ring is a cylindrical interstice containing a brazing bonding material or a structural adhesive which integrally binds the hub to the first inner tubular ring.

Abstract: A pulley device comprising a rolling bearing including an inner ring defining a central bore, and outer ring and rolling elements mounted between the inner ring and the outer ring, a pulley secured in rotation with the outer ring and provided with a feature for engaging with a transmission member. The pulley additionally includes a screw comprising a head and a shank housed in the central bore of the inner ring, the screw being configured to fix the pulley device to a motor support. The pulley device also comprises a first sleeve arranged between the inner ring and the screw, on the side of the motor support. The first sleeve includes an inner surface that has a frustoconical portion having an increasing diameter toward the head of the screw.

Abstract: A sensor-bearing unit, comprising: a bearing including at least one non-rotating ring and at least one rotating ring movable in rotation around a rotation axis; an impulse ring and a sensor device for tracking the rotation of the rotating ring around the rotation axis. The impulse ring is fixed to the rotating ring. The sensor device is fixed to the non-rotating ring and includes a differential detection cell having a structural pitch. The differential detection cell is tilted and has an effective pitch different from the structural pitch. A mechanical system can such sensor-bearing unit.

Abstract: A sensor device for monitoring a component of interest, including at least one sensor for measuring at least one parameter indicative of condition of the component of interest, signal processing device for processing the signals of the sensor, and a mounting element for mounting the sensor device close to the component of interest. The mounting element can be made of a zinc alloy.

Abstract: A cage of a rolling bearing, the cage comprising: an annular heel centered on a central axis and having a constant radial thickness measured radially to the central axis; an axial portion extending from the heel substantially parallel to the central axis; and pockets delimited by the heel and the axial portion for receiving rolling elements. The axial portion has an axial length being greater than half the inner diameter of the pockets and an outside diameter being lesser than the outside diameter of the heel and which comprises between a first value equal to the pitch circle diameter of the cage minus half the radial thickness of the heel and a second value equal to the pitch circle diameter of the cage plus half the radial thickness of the heel. The pockets are spaced around the central axis having angular spacings being at least partly different from one another.

Abstract: A mechanical system forms a cam follower or a rocker arm and includes a support element, a pin extending between two opposite ends along a first axis and supported by the support element, and a roller mounted on the pin, movable in rotation relative to the pin around the first axis and adapted to roll on a cam. The support element includes a first axial abutment feature blocking the translation of a pin assembly including at least the pin, in a first direction parallel to a second axis perpendicular to the first axis. The mechanical system additionally includes an insert inserted in the support element and supporting the pin opposite the first axial abutment feature, wherein the first axial abutment feature protrudes outside a cavity delimited by the support element and receiving the pin.

Abstract: A seal assembly includes an annular static sealing member disposed within an annular channel in a housing or shaft. An annular dynamic sealing member is disposed coaxially within or about the static member and has a circumferential sealing surface engageable with the shaft or housing. An annular biasing member is disposed radially between the static and dynamic sealing members and is configured to bias the dynamic sealing member radially to maintain engagement of the sealing surface and the shaft or housing. The static member is configured to prevent relative angular displacement between the static and biasing members and the dynamic member is configured to prevent relative angular displacement between the dynamic and biasing members. As such, the dynamic sealing member, the biasing member and the static sealing member angularly displace within the channel as a single unit when torque above a particular magnitude is applied to the dynamic sealing member.

Abstract: A backing device, adapted to equip an axlebox comprising a bearing unit and supporting an axle. The backing device comprises: (a) an inner ring having an inner surface and at least one outer surface; (b) at least one outer ring having an inner surface facing the outer surface of the inner ring; and (c) a tightening component inserted inside at least one of the inner ring and the outer ring. When actuated, the tightening component presses the inner surface of the outer ring and the outer surface of the inner ring against each other and narrow the inner surface of the inner ring by elastic deformation thereof. The axlebox can be integrated into a vehicle. Mounting and dismounting methods are described herein.

Abstract: A sealing device including a first annular rotating shield, a second annular shield, fixed and arranged in front of the first shield for delimiting therebetween a first annular chamber and a sealing ring provided with at least a first and a second annular lips that extend axially and radially project from a flange portion of the second shield and towards a flange portion of the first shield, inside the annular chamber. At least one of the first and second lips cooperates with the flange portion of the first shield without touching it for defining a first dynamic labyrinth seal therewith. The first shield integrally supports a third annular lip that extends projecting from the first shield towards one of the first and second lips without touching it for defining a second dynamic labyrinth seal between the first and second shield and inside the annular chamber.