Abstract: A bearing unit comprising a stationary radially outer ring with a spherical radially outer surface with a convex shape, a radially inner ring that is rotary about a central rotation axis (X) of the bearing unit and is mounted on a rotating or oscillating shaft. A diametrical through-hole is formed in a first cylindrical portion that is used to receive an elastic element for locking the radially inner ring on the shaft, a plurality of rolling bodies interposed between the radially outer ring and the radially inner ring to enable the relative rotation of the two rings, and a locking element locking the radially inner ring on the shaft. The radially inner ring is provided with two threaded through-holes from opposite sides with respect to the radially outer ring and to the rolling bodies, for housing respective grub screws for locking the radially inner ring on the shaft.

Abstract: A clamping system for a hub bearing assembly includes a screw element configured to engage with a threaded section formed on a flanged hub of a bearing unit. The screw element includes a flange-shaped head configured to cooperate with an annular element of the bearing unit and axially constrain the flanged hub and the annular element, an elastic ring, and at least one annular seat for the elastic ring. The at least one annular seat is formed radially on the inside of the annular element or on the outside of the flange-shaped head along a radially outer peripheral edge of the flange-shaped head.

Abstract: A mechanical system includes a sensor bearing unit and a fixed support part. The sensor bearing unit includes a bearing including a first ring and a second ring centered on an axis, an impulse ring secured to the first ring of the bearing, and a sensor device for detecting rotational parameters of the impulse ring. The sensor device has a sensor housing secured to the second ring of the bearing and a cable output that extends radially and is located circumferentially two spaced protrusions of the fixed support part.

Abstract: A sensor bearing unit includes a bearing having an inner ring and an outer ring centered on an axis, an impulse ring secured to the inner ring of the bearing, and a sensor device for detecting rotational parameters of the impulse ring including a sensor housing secured to the outer ring of the bearing and at least one sensor element supported by the sensor housing and cooperating with the impulse ring. The impulse ring is provided with an orientation lug extending axially on the side opposite to the inner ring of the bearing and intended to be located into a groove formed on the shaft of an associated apparatus.

Abstract: A rolling bearing having an outer ring, an inner ring, and at least one row of rolling elements disposed between two raceways of the outer and inner rings. Furthermore, the raceway of the outer ring and/or the raceway of the inner ring at least partially provide a coating based on chromium nitride, the rolling elements at least partially include a coating based on carbon.

Abstract: A housing for a lubricant supply device for supplying a consumer with a lubricant includes a storage space for the viscous medium and a pump space configured to contain a conveying pump for pumping the viscous medium from the storage space to a medium outlet. The storage space is at least partially defined by a side wall, a base wall and a cover wall, and the supply device also includes an outer wall overlying a portion of the storage space side wall and defining with the storage space side wall a first intermediate space. The storage space side wall includes a first opening providing fluid communication between the storage space and the intermediate space.

Abstract: A device for determining the rotation frequency of at least one wheel of a vehicle provides a first measuring device for measuring an acceleration value of the at least one wheel, a second measuring means for measuring vibrations of the at least one wheel, and a processing unit configured to determine a first rotation frequency of the at least one wheel from the measured acceleration value of the at least one wheel, compare the determined first rotation frequency of the at least one wheel to a first threshold, define a frequency analysis interval from the determined first rotation frequency greater than the first threshold, process a frequency analysis of a signal indicative of vibrations of the at least one wheel for the frequencies inside the frequency analysis interval, and select a second rotation frequency in the frequency analysis interval having the higher amplitude.

Abstract: A bearing bush configured to support a journal of a journal cross of a cardan shaft includes a cylindrical circumferential wall that radially delimits an interior for receiving rolling elements and the journal and includes a base axially delimiting the interior. The base has a central holder configured to receive a slip disk for contacting the journal. The base may include a conical portion extending from the cylindrical circumferential wall and a flat central portion, and the holder may be formed as a depression in the flat central portion. Also a journal bearing assembly including the bearing bush.

Abstract: A bearing assembly includes a bearing unit configured to support a rotating component relative to a stationary component and having a first stationary bearing ring configured to be connected to the stationary component in a rotationally fixed manner by a bearing carrier and a second rotatable bearing ring configured to be connected to the rotating component. The bearing carrier includes at least one electrical conductor configured to make electrical contact with the bearing unit and to make electrical contact with the stationary component or to be electrically connected to the stationary component when the bearing carrier is mounted to the stationary component.

Abstract: A method for estimating the temperature of a stator coil of a magnetic suspension bearing of a rotor that is connected by connection wires to circuits for servo-controlling the position of the rotor includes the following steps: measuring the electric voltage at the terminals of the connection wires of the stator coil; measuring the intensity of the current passing through the stator coil; estimating the electric resistance of the stator coil and of the connection wires on the basis of an adaptive filter, the measured electric voltage and the intensity of the measured current; and estimating the temperature of the coil on the basis of the value of the estimated resistance.

Abstract: A device includes a lower support cap, an upper bearing cap, at least one bearing disposed between the caps and at least one annular seal. The seal provides a claw secured by mechanical connection to the upper support cap, a sealing lip extending obliquely from the claw in the direction of the upper bearing cap.

Abstract: In a method and a system for purification of contaminated oil, the contaminated oil and a liquid separation aid are provided in a mixing tank and then mixed into a mixture. Thereafter, the mixture is filtered.

Abstract: A sealing device for sealing off external contaminants from a bearing unit between a stationary radially outer ring and a rotatable radially inner ring, the sealing device including a first, metallic and rotatable annular screen having a first mounting area for assembly with interference on the radially inner ring, a second, metallic and stationary annular screen having a second mounting area for assembly with interference on the radially outer ring, an annular sealing element made of elastomeric material, integrally supported by the second annular screen, and equipped with at least one contacting annular sealing lip projecting axially and radially from the second screen towards the first screen, and a non-contacting annular lip extending axially and facing a first flange portion of the first annular screen.

Abstract: A bearing seal including an anchoring portion fixed on an inner ring of the bearing, and a sealing portion capable of forming a sealing fit with an outer ring of the bearing, the seal providing rigid slinger of substantially circular shape, the slinger having a root portion formed at a position corresponding to the anchoring portion for stabilization and support, and a radial portion formed in the section corresponding to the area between the anchoring portion and the sealing portion for radial support, wherein the radial portion is formed with at least one slot with the opening direction facing the radial periphery.

Abstract: A bearing providing a first ring, a second ring and at least one row of rolling elements radially located between raceways disposed on the first and second ring, a single optical sensing fiber mounted in a groove provided on a surface of the first ring radially opposite to the raceway of the first ring, the fiber having at least a sensing part. The groove including a first branch extending from a first frontal surface of the first ring and being at least partially incurved along at least one radius of curvature to extend towards a circumferential groove parallel to the first frontal surface; a second branch extending from a second frontal radial surface of the first ring, axially opposite to the first frontal surface, connected to the first branch, the second branch being at least partially incurved along at least one radius of curvature.

Abstract: A bearing unit having a stationary radially outer ring, a radially inner ring, rotatable with respect to a rotation axis (X) and steadily connected to a rotating shaft, a row of rolling bodies interposed between the radially outer ring and the radially inner ring, a casing, inside which the rings of the bearing unit are housed, a sealing device, and a protection disk. The protection disk may be mounted in an axially external position to the sealing device and fixed to the radially inner ring. Additionally, the protection disk may have a shaped metallic screen, and an elastomer coating over-molded on part of the screen. The protection disk may further be in contact with an axially external surface of the radially outer ring through the elastomer coating, which is provided with two lips, a first lip, non-contacting or contacting and radially external, and a second lip, contacting and radially internal.

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: A sensorized rolling element for a bearing having inner and outer races and a plurality of rolling elements disposed between the inner and outer races and includes a rolling element body having an interior surface defining a cavity, the body being disposable between the inner race and the outer race. A wireless transmitter is disposed within the cavity of the rolling element body and a piezoelectric device is disposed within the cavity so as to contact the inner surface of the rolling element body. The piezoelectric device includes a body formed of piezoelectric material and at least two electrodes electrically coupling the piezoelectric body with the wireless transmitter. The piezoelectric device is configured to generate electrical charge for powering the transmitter when the rolling element body deflects under loading applied by the inner race and/or outer race and may also be used to detect loading on the rolling element body.

Abstract: A method for positioning a magnetic device providing an impulse ring forming a coder and at least three magnetic detection cells forming a magnetic sensor. The impulse ring being provided with a target having pairs of magnetic poles. The number of pair of magnetic poles being counted. The magnetic detection cells are positioned around the target of the impulse ring according to the number of pair of magnetic poles and according to the number of detection cells.

Abstract: A system and computer-implemented method for detecting anomalies in industrial machine sensor data, including: computing, based on a received suspected anomalous level value of a sensory input data of each of the a plurality of sensory input data of a plurality of industrial machines that are located within a predetermined proximity, an average anomalous amount that is associated with at least a time interval; and determining that at least one of the plurality of suspected anomalies is an anomaly when a result of a subtraction of the computed average anomalous amount from each suspected anomalous level value of the plurality of sensory input data exceeds a predetermined threshold.