Aktiebolaget Skf

Akiebolaget Skf

Richard Corbett

Samuel Viault

Benoît Hauvespre

Bruno Montboeuf

François Champalou

Christophe Houdayer

Nicolas Berruet

Florence Crenn

Benoit Arnault

Sylvain Bussit

Yves-André Liverato

Charles Chambonneau

Guillaume Jouanno

Julien Maffucci

Jacques Charpentier

Jérôme Dubus

Aurelien Ghilbert-Simon

Jeroen Wensing

Patrice Ribault

Jun Wang

Désiré Vidot

Jerôme Dubus

Jeremy Detraigne

Michel Bonnet

Cédric Brulard

Jeoren Wensing

Wang Jun

Aurélien Ghilbert-Simon

The cam follower roller device provides a tappet housing extending along an axis, a pin mounted on the tappet housing and a roller mounted on the pin. The tappet housing includes a main body provided inside which the roller is mounted and with a recess delimited axially by a radial portion of the body. The tappet housing further provides at least one stiffening insert mounted in axial contact with the radial portion of the main body.

Cam follower roller device with reinforced tappet body

The cam follower roller device provides a tappet body extending along an axis, an insertmounted in the tappet body, a pinmounted at least on the insert and a roller mounted on the pin. The device further provides a removable retaining plug carried by the tappet body and adapted to retain the insert relative to the body. A radial interference fit is provided between the retaining plug and the tappet body.

Cam follower roller device with retaining plug

A cam follower, comprising: a tappet which includes two flanges provided with opposite holes centered on a transverse axis; a pin extending along the transverse axis between two opposite ends received in the opposite holes; and a roller movable in rotation relative to the pin around the transverse axis and adapted to roll on a cam. Each of the opposite holes is provided with: an open portion for mounting the pin by translation in a first direction perpendicular to the transverse axis, a cylindrical portion for supporting the pin along the first direction and a plane portion for retaining the pin along the transverse axis during transport and mounting of the cam follower. A method includes steps for manufacturing such a cam follower.

Cam follower and method for manufacturing such a cam follower

The cam follower roller device including a body, a shaft mounted on the body, a roller mounted on the shaft in a rotationally movable manner, and at least one friction element mounted on the shaft axially between the roller and the body. The friction element is separate from the body and from the roller.

Cam follower roller device

A mechanical system, comprising a support element having an outer surface adapted to slide in a housing receiving the mechanical system, a pin extending along a first axis and comprising two opposite ends, each adapted to be fitted in the support element for radial and/or axial retention of the pin relative to the first axis, and a roller element movable in rotation relative to the pin around the first axis. The mechanical system comprises at least one outer insert positioned at the outer surface of the support element. The mechanical system can be integrated into either an injection pump or a valve actuator.

Mechanical system, injection pump and valve actuator comprising such a mechanical system and manufacturing method

The suspension thrust bearing device for a motor vehicle comprises a rolling bearing forming an axial thrust bearing and provided with an upper ring, with a lower ring and with at least one row of rolling elements arranged between the rings, a bearing cap in contact with the upper ring, and a support cap in contact with the lower ring and forming a bearing means for a suspension spring. The support cap comprises a body of rigid material and seals of flexible material fixed to the body and comprising dynamic sealing lips in contact with the bearing cap or one of the rings of the rolling bearing and delimiting radially a sealed space containing at least the rolling elements of the rolling bearing. The support cap further comprises an annular ring to which the lower ends of the seals are connected and forming a bearing surface for the suspension spring.

Thrust bearing and suspension for vehicle

A rotation transmission device with a built-in one-way clutch having an inside rotational member, an outside rotational member disposed concentrically with the inside rotational member is proposed. The device includes a one-way clutch that is radially disposed in an annular space defined between the inside rotational member and the outside rotational member, and at least one bearing disposed in the said annular space. The outside rotational member is made in a plastic material and is overmolded onto at least one stiffening insert.

Rotation transmission device with built-in one-way clutch and alternator comprising such a device

Pulley device for a rotary machine, and in particular a compressor, comprising a pulley, a rolling bearing, a torque transmission plate having an axial sleeve designed to be mounted on a rotary spindle of the rotary machine and a radial plate extending radially from the axial sleeve and having the general shape of a disc, said pulley being mounted on an outer ring of the rolling bearing and on the torque transmission plate, the torque transmission plate being able to transmit a rotational movement from the pulley to the rotary spindle. Said pulley device comprises a damping element located between the pulley and the torque transmission plate.

Pulley device with a damping element

This bearing comprises a fixed outer ring and a rotatable inner ring, and at least one lubrication ring having at least one lubrication duct extending between an outer surface and an inner surface of the lubrication ring. The at least one lubrication duct is placed so that the scalar product of a vector collinear to the longitudinal axis of the lubrication duct, and a vector (VL) collinear to the tangent line (L) to an outer cylindrical surface of the inner ring, at the point where the longitudinal axis of the lubrication duct () intersects the outer cylindrical surface of the inner ring, and oriented in the same direction as the rotation direction (F) of the inner ring, is strictly superior to zero, said vectors being projected in a plane (P) perpendicular to the rotation axis of the bearing.

Bearing, bearing assembly comprising such a bearing and turbocharger comprising such a bearing assembly

Suspension thrust bearing device comprising a rolling bearing () and a bottom cover () having a bearing surface capable of accommodating a suspension spring (), the bottom cover () comprising a reinforcing framework (), which framework has a bearing collar () placed axially between the rolling bearing () and the bearing surface of the spring (), the framework () also comprising an inner radial extension (). The framework comprises an axial portion () extending in a direction away from the rolling bearing (), protruding axially relative to the inner radial extension () and being situated radially outside the radial extension so as to be able to accommodate a shock-absorbing pad.

The axial thrust bearing device, in particular for the suspension strut of a motor vehicle, comprises a bottom support cover, a top bearing cover, a rolling bearing axially disposed between said covers, and at least a sealing ring axially bearing against the bottom support cover and adapted to reduce any ingress of foreign matter between said covers. The sealing ring comprises at least one friction lip in contact with the top bearing cover and tending to keep said sealing ring in axial contact with the bottom support cover.

Sealing ring with an elastic spring lip

The suspension thrust bearing device for a motor vehicle comprises a rolling bearing () forming a thrust and provided with an upper ring, a lower ring, and at least one row of rolling elements placed between the rings, a bearing cap () in contact with the upper ring, and a supporting cap () in contact with the lower ring and forming a bearing means for a suspension spring (). At least one of the said caps comprises a body formed of at least a first synthetic material and an insert () at least partly covered by the said body. The said insert is formed of at least a second synthetic material different from the first synthetic material.

A suspension thrust bearing device having a lower cover, an upper cover and a rolling bearing disposed between the lower cover and the upper cover. The rolling bearing providing a lower ring mounted on the lower cover and an upper ring mounted on the upper cover. The rolling bearing further providing rolling elements disposed between the two rings. The lower cover has a body formed of a rigid material part and a flexible material part forming a seal of the device. The flexible part of the lower cover includes at least one labyrinth sealing lip that cooperates with the upper cover to leave a narrow passage forming a labyrinth seal between one edge of the labyrinth sealing lip and the upper cover and at least one rubbing sealing lip in contact with the upper cover.

Suspension thrust bearing device

This motor vehicle suspension stop comprises a first ring, a second ring, balls () bearing against two raceways () respectively defined by the first ring and by the second ring, and a cage () for holding the balls between the raceways. The cage () is provided with abutment pins (), each for bearing against one of the raceways (), thereby avoiding direct contact between the cage () and the adjacent edges () of the rings. These pins () are distributed on either side of a radial midplane (P) of the cage () that contains the centers of cells in the cage. The axial distance (d) between the ends () of the abutment pins () is strictly less than the minimum distance (D) between the raceways ().

Suspension stop and a motor vehicle fitted with such a stop

The suspension thrust bearing device for a motor vehicle comprises a rolling bearing forming a thrust bearing and provided with an upper ring, with a lower ring and with at least one row of rolling elements arranged between the rings, a bearing cap in contact with the upper ring, and a support cap in contact with the lower ring and forming a bearing means for a suspension spring. At least one of the caps comprises a body made of synthetic material and an insert covered at least in part by the body. The insert comprises stiffening ribs in order to reinforce the mechanical strength of the cap with respect to the axial loads resulting from the forces exerted by the suspension spring.

Growing community of inventors

Fondettes, France

Richard Corbett