Skf Engineering and Research Centre B.v.

Aktiebolaget Skf

Skf Industrial Trading & Development Company, B.v.

Ab Skf

Sfk Engineering and Research Centre B.v.

Jacobus Zwarts

Hendrikus Jan Kapaan

Johannes Albertus Van Winden

Clair Druet

Thomas Wilhelm Fucks

Cornelius Petrus Antonius Vissers

Armin Herbert Emil August Olschewski

Andries Christian Rinsma

Alexander Jan Carel De Vries

Jiri Gurka

Alexander Jan Carel Vries

Antonio Gabelli

Christian Boch

Laurens Verhulst

Eduardus Gerardus Maria Holweg

Hendrik Dolfsma

Albert Van Den Kommer

Alberto Visconti

Bernardus Gerardus Van Leeuwen

Johannes Franciscus Van De Sanden

Klemens Schmidt

Nicolaas Kollaard

Frédéric Ponson

Johannes Adrianus Maria Duits

J&eacute;r&ocirc;me Dubus

Asbjorn Bundgart

Andries Christiaan Rinsma

Johannes Haaye Van Der Kamp

Emmanuel Jacques Eyraud

Thomas Wilheim Fucks

Alexander Molenaar

Jan Hendrikus Kapaan

Henrikus Jan Kapaan

Simon Jan Broersen

Rico Dittmar

Lucia Puppione

Cornelius Petrus Antonius Visser

Rene Gijsbertus Adrianus Van Breemen

The present invention resides in a method of manufacturing a bearing ring () for a rolling element bearing, wherein the bearing ring comprises a bearing race () made of a bearing grade steel and an overmolded part () that is preferably made of a lightweight metal such as aluminum or a thermoplastic material such as polyamide. According to the invention, the method comprises a step of hardening at least a raceway surface () of the bearing race prior to a step of joining the overmolded part () to the bearing race () in a molding process. In a further development, the method comprises a step of temperature control, to ensure that the temperature of the raceway surface () is kept below a predetermined value during the molding process.

Method of manufacturing a bearing ring

The invention relates to a wheel bearing unit () for a vehicle wheel, comprising a hub element () which has a axially (a) extending cylindrical section () to be supported by a bearing arrangement () and which has a radially (r) extending flange section () for fixing the vehicle wheel and/or a brake disk at a face side () of the flange section (). To ensure a simple design with high stability the invention is characterized in that the hub element () consists of a first part () comprising the cylindrical section () and the flange section () and of a second part (), wherein the second part () has means () for centering a wheel rim of the vehicle wheel and/or the brake disk and wherein the first part () and the second part () are connected by connection means ().

Wheel bearing unit

King-pin assembly with a sensor (), the King-pin assembly () comprising a Kingpin (), an axle frame (), a spindle () and a bearing () for moveably mounting the spindle () to the axle frame () using the King-pin. The King-pin assembly further comprises a spacer () for holding the axle frame (I) at a predetermined distance from a bearing inner ring (). A housing () is attached to the spacer (), the housing () comprising at least a first part () of the sensor (), a second part () of the sensor () being fixedly attached to the spindle ().

Sensor in King-pin

An actuator including a housing accommodating a screw mechanism and a drive including a motor. The screw mechanism includes a nut and a screw, one of which is rotatably supported with respect to the housing. Upon relative rotation of the nut and the screw, linear movement of one of the nut and the screw is obtained. At least a rotatable component of the drive, for example, the rotor of the motor, is rotatably supported on the screw which is rotatably supported with respect to the housing.

Compact actuator

A clutch actuator unit comprises a housing (), a screw mechanism and an actuator head which at one end engages the screw mechanism () and at the other end has an actuating end (), which actuator head () can be displaced in axial direction by the screw mechanism upon driving the screw mechanism. The actuating end () of the actuator head () is displaceable in transverse direction with respect to the screw mechanism as well.

Clutch actuator unit

A screw actuator which has a housing, a motor, an actuating member and a screw mechanism which provides a linear movement of the actuating member with respect to the housing in response to a rotational movement of the motor. The screw mechanism has a screw and a nut engaging each other by rolling elements, one of the screw or the nut is rotatbly supported with respect to the housing, and a reduction gear means. The nut is fixed with repect to the housing, and the screw is rotatably supported with respect to the housing by mean of rolling elements.

Screw actuator, and brake caliper comprising such actuator

A screw actuator comprises a housing ( ), a nut (A) and a screw ( ) one of which is axially fixed with respect to the housing and the other of which is axially displaceable with respect to the housing for moving an actuating head, as well as a motor ( ) which comprises a stator ( ) connected to the housing, and a rotor ( ). The rotor ( ) of the motor is supported rotatably on a sleeve ( ), said sleeve has an inwardly directed flange ( ), which carries an excentric hub ( ). The excentric hub ( ) rotatably supports a gear wheel ( ) through bearing ( ), the outer teeth of which gear wheel ( ) engage the inwardly directed teeth of the ring gear ( ). The ring gear ( ) is driving screw ( ) which is rotatably supported in the housing ( ). The nut ( ) of the screw mechanism ( ) is slidably, but not rotatably with respect to the housing. Through the screwthreads ( ) and balls ( ), the rotary motion of the screw ( ) is converted into a linear motion of the nut ( ), which is contained in a cylinder space ( ) in the housing ( ).

Actuator having compact gear reduction

A screw actuator ( ) comprises a housing ( ), a nut ( ) and a screw ( ) one of which is axially fixed with respect to the housing and the other of which is axially displaceable with respect to the housing for moving an head ( ), as well as a motor ( ) which comprises a stator ( ) connected to the housing, and a rotor ( ) which is drivingly connected to a rotatable part ( ) of the screw actuator, the housing having a bore ( ) accommodating at least the nut and/or screw, an axially fixed part of said nut or screw being supported with respect to a radial support abutment ( ) which extends inwardly in the bore. The rotor of the motor is supported rotatably on a sleeve ( ), said sleeve engaging the fixed part and extending away from the brake pad, said sleeve having a radially outwardly extending sleeve flange ( ) which is interposed between said support abutment, and the axially fixed part.

Actuator comprising a sleeve support

An actuator for a drum brake comprises a housing ( ), a screw mechanism having at least one screw ( ) and a nut ( ), which screw mechanism ( ) is supported with respect to the housing ( ), and drive means ( ) which are drivingly connected to the screw mechanism for providing a linear movement of at least one of the screw and nut with respect to the housing upon driving the screw mechanism. The screw mechanism comprises two axially aligned screws which have opposite lead angles and two corresponding nuts, said screws each engaging a respective nut, the drive means being connected to both screws or to both nuts.

Drum brake and electric actuator therefor

An actuator comprises a housing, a motor ( ), an actuating member ( ) and a screw mechanism ( ) providing a linear movement of the actuating member ( ) with respect to the housing in response to a rotational movement of the motor ( ), which screw mechanism ( ) comprises a screw ( ) and a nut ( ) one of which is rotatably supported with respect to the housing by means of an angular contact bearing, and a reduction gear means ( ). The actuating member ( ) and the reduction gear means ( ) are situated at opposite ends of the screw mechanism ( ).

Modular actuator, and brake calliper comprising such actuator

A continuously variable transmission unit comprises two pulley sets ( ) which each comprises a pair of discs ( ) and a screw mechanism ( ) which is concentrated with respect to a pulley set ( ) for moving the discs ( ) of the pulley set ( ) towards and from each other, each pair of discs ( ) enclosing a V-shaped groove, a belt ( ) stretching between the pulleys and accommodated in the grooves thereof, the screw mechanism ( ) being controllable by a control device, the discs ( ) of each pulley set ( ) being accommodated on a support shaft ( ). The screw mechanism ( ) is accommodated in the bore in the shaft ( ) and engaging at least on of the discs ( ).

Continuously variable transmission unit

A screw actuator comprises a screw ( ) and a nut ( ) which are each provided with at least a helical groove ( ), and a series of rollers or balls ( ) which are in rolling contact with the grooves ( ). A sleeve ( ) is provided which surrounds the nut ( ) at least partly. The sleeve ( ) may carry a seal ( ) which acts between the nut ( ) and screw ( ); e.g. a wiper seal. The seal ( ) may be fixedly connected to the nut ( ), and frictionally engage the screw ( ).

Screw actuator comprising a multi-purpose sleeve, and brake calliper

Apparatus for providing a linear movement to an actuating member while preventing axial loadings from being transmitted from the actuating member to an engaging member, such as a screw. A pressure pad or springs are interposed between an actuating member and an engaging member such that axial loadings are prevented from being transmitted from the actuating member to the engaging member due to the resilient effect of the springs or pressure pad.

Actuator comprising flexible element, and brake calliper comprising such actuator

An actuator for use in a brake caliper is situated at opposite ends of a screw mechanism. A reduction gear mechanism is located at a distance from the actuating member. The reduction gear mechanism is included in a reduction gear module and a screw mechanism is contained in a screw mechanism module, which are interconnected through a drive module. The drive module may be located at the end of the reduction gear module facing away from the screw mechanism module. The modules may be axially aligned or at least two modules may be axially shifted or eccentric with respect to each other. The screw mechanism module may comprise an angular contact bearing which may be supported in a housing in different ways. The reduction gear module may be part of a planetary gear system.

Modular actuator, and brake caliper comprising such actuator

A rolling bearing assembly for mounting a shaft or similar member which has a housing encircling the shaft with at least one rolling bearing installed between two securing rings. The assembly consists of an outer and an inner race and at least one row of rolling elements. It has annular chambers in the housing on either side of the bearing, closed off on their outer edges by annular seals which are attached to the housing and in contact with the bearing shaft. It has at least one hole opening into one of the annular chambers throught the wall of the housing, capable of being placed in communication on the outside with a feeding device for introducing a lubricant into the housing. There are two channels (17, 17') extending through the wall of the housing (1) and located diametrally opposed to each other, each opening into the closed annular chamber (8), and in that a trough-like receptacle (18) is accommodated in said channels, in which an excess of lubricant can be collected.

Growing community of inventors

Nieuwegein, Netherlands

Jacobus Zwarts