Aktiebolaget Skf

Yves-André Liverato

Benoit Arnault

Samuel Viault

Bruno Montboeuf

Nicolas Berruet

Romuald Lescorail

Eric Robert

Torbjorn Hedman

Alain Gezault

Jean-Luc Jadeau

Herve Maury

Jean-Marie Guegan

Alexander Mocnik

Sylvain Bussit

Richard Corbett

Olivier Verbe

Vincent Sausset

Charles Chambonneau

Ludovic Fenayon

Sylvain Chaussat

Benedicte Thomas

Alexandre Manceau

Jacques Charpentier

Patrice Ribault

Matthias Zauner

Eve Goujon

Jean-Luc Gardelle

Stephane Cordier

Jérémy Demont

Charles Massoteau

Pietro Tesini

Cédric Brulard

Pascal Durif

Guy Heck

Aurélien Ghilbert-Simon

A device configured to be mounted on a mechanical component and to measure an axial load exerted on the mechanical component, the device including a ring provided with an inner cylindrical surface and with an outer opposite cylindrical surface, the inner and outer cylindrical surfaces delimiting the radial thickness of the ring. The device further provides at least one optical sensing fiber disposed in a first circumferential groove provided on one of the outer and inner cylindrical surfaces of the ring.

Device equipped with an optical sensing element for sensing axial loads, notably for a bearing

The rolling bearing provides a first ring, a second ring and at least one row of rolling elements arranged therebetween. Each of the first and second rings include an inner bore having an outer surface and at least one raceway for the row of rolling elements formed on one of the inner bore and outer surface. The first ring provides at least one part ring delimiting the raceway, and at least one sleeve secured to the part ring and delimiting at least partly the other of the inner bore and outer surface of the first ring. The rolling bearing further provides at least one optical fiber sensor mounted inside at least one circumferential groove formed on the first ring and passing through at least one optical fiber sensor passage opening into the circumferential groove.

Rolling bearing with integrated optical fiber sensor

A method for mounting a sensor bearing unit providing a bearing and an impulse ring provided with a target holder and with a target mounted on an axial portion of the target holder. The method including measuring an eccentricity Ebetween the target and the axial portion of the target holder, measuring an eccentricity Ebetween a groove made in the bore of an inner ring of the bearing and the bore, introducing the target holder inside the groove, turning the target holder inside the groove to an angular position in which the eccentricity Ebetween the target and the bore of the inner ring is less than or equal to a predetermined value which is lower than the sum of the eccentricities Eand E, and securing the target holder inside the groove of the inner ring at the angular position.

Method for mounting a sensor bearing unit, and sensor bearing unit adapted to such a method

The bearing provides a first ring and a second ring centered on an axis, each of the first and second rings being provided with an outer cylindrical surface, with an inner cylindrical surface, and with lateral faces that axially delimit the outer and inner cylindrical surface. One of the inner and outer cylindrical surfaces and/or one of the lateral faces of the first ring includes a textured area provided with a groove extending circumferentially and with two protrusions disposed one on each side of the groove and extending along the groove.

Bearing and associated sensor bearing unit

A bearing ring having a main part ring provided with at least one groove formed a surface of the main part ring. The bearing ring further provides at least one fiber sensor mounted inside the groove. The bearing ring also include at least one counterpart ring mounted into the groove of the main part ring and coming into contact with the fiber sensor to maintain the fiber sensor against a groove bottom, the counterpart ring being secured to the main part ring.

Bearing ring with integrated fiber sensor and associated bearing

A method for centering an impulse ring of a bearing unit on the center of rotation of the bearing unit including a first ring and a second ring. The impulse ring provided with a target having pairs of magnetic poles, and with a fixing sleeve. The method provides a) inserting the impulse ring between the first ring and the fixing sleeve, the first ring and the fixing sleeve being configured to maintain the impulse ring in an axial direction of the bearing; b) recording an angular signal over one mechanical turn of the impulse ring, the angular signal being generated by detection configured to cooperate with the pairs of magnetic poles; c) determining a total pitch deviation vector of the impulse ring based on the angular signal; d) shifting the impulse ring in a radial direction of the bearing, and e) securing the impulse ring relative to the first ring.

Method for centering the magnetic center of an impulse ring of a bearing unit on the center of rotation of the bearing unit

A total pitch deviation measurement device that determines a total pitch deviation of an annular product having at least a magnetic ring. The device providing a frame; a pallet conveyor fixed to the frame and designed to support the rotor positioning bearing unit; a spindle unit mounted in translation compared to the frame along a vertical axis, the spindle unit including a spindle shaft, a motor driving the spindle shaft, and an encoder connected to the spindle shaft; the spindle shaft having a free lower end having a tapered shape that fits into a bore of the annular product; a sensor fixed to the frame that measures a magnetic field signal at a position of the magnetic ring and transmits the signal measured to an control unit that determines the total pitch deviation of the annular product. Also, a method for carrying out the function of the intended device.

Device and method for determining a total pitch deviation of an annular product

Sensor bearing unit providing at least two bearings stacked one relative to the other and each having an inner ring and an outer ring, the sensor bearing unit having a sleeve radially surrounding the bearings and having a radial projection in axial contact with one of the bearings, an annular flange having a radial portion in axial contact with the other bearing and an axial portion radially surrounding the sleeve and connected to the sleeve, and a wire carrier configured to support at least one wire and at least one connector, the wire carrier includes at least one fastening element mounted on the bearing.

Sensor bearing unit, assembly method of said unit and method for assembling said sensor bearing unit on shaft

A bearing includes at least one bearing ring, a target ring and a coupling element. The coupling element is provided for maintaining the relative position of the bearing ring to the target ring. The coupling element includes an alignment surface that is adapted to align the target ring with one of a housing or a shaft into/onto which the bearing ring is to be mounted.

Bearing

A rolling bearing comprising an inner ring, an outer ring, at least one row of rolling elements between the inner and outer rings, and an annular housing surrounding at least one of the rings, said outer ring comprising two separate parts, the housing comprising two distinct parts for retaining the parts of said outer ring and fixing means for fixing the distinct parts together. The first part of the housing comprises an inner axial cylindrical portion for retaining radially said outer ring and the second part of the housing comprises an outer axial cylindrical portion surrounding said inner axial cylindrical portion.

Rolling bearing comprising a housing having two parts and method of manufacturing such a bearing

The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing comprises at least one pressed ring distinct from the constituent elements of the one-way clutch device. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.

Mechanical system with one-way clutch and alternator comprising such a system

The present invention relates to a mechanical system with a one-way clutch, for example a pulley for a motor vehicle alternator, comprising a first element and a second element which are able to move one with respect to the other in rotation about a central axis and delimit an annular housing radially to the central axis, a one-way clutch device arranged in the annular housing, and at least one rolling bearing arranged in the annular housing. The mechanical system is characterized in that the rolling bearing is an angular-contact bearing and comprises at least one pressed ring comprising means of attachment of the rolling bearing to the first element or the second element. The invention also relates to an alternator comprising such a mechanical system configured as a pulley with a one-way clutch.

Mechanical system comprising a one-way clutch and alternator comprising such a system

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Saint Paterne Racan, France

Yves-André Liverato