Skf Engineering and Research Centre B.v.

Ab Skf

Skf Engineerings and Research Centre B.v.

Alexander Jan Carel De Vries

Armin Herbert Emil August Olschewski

Hendrikus Jan Kapaan

Clair Druet

Johannes Albertus Van Winden

Thomas Wilhelm Fucks

Roland Haas

Jacobus Zwarts

Pieter Martin Lugt

Jiri Gurka

Andries Christian Rinsma

John Howard Tripp

Manfred Antensteiner

Andries Christiaan Rinsma

Peggy Suzanne Charlotte Vieillard

Thomas Wilheim Fucks

Arimin Herbert Emil August Olschewski

Thomas M&uuml;ller

Martinus Maria Jozef Noordman

A bearing includes an inner bearing ring on which a raceway is formed. The ring includes at least a first component of light metal material and at least a second component of fully dense ceramic material, where the first component and the second component are separate entities joined together, and where the second component forms at least part of the raceway. The first component includes two lightweight metal parts interconnected by a screw thread which can be tightened to induce compressive pre-stress in the second component to compensate for low tensile strength of the ceramic material.

Bearing with light weight metal and ceramic material

A method of manufacturing a roller element bearing comprising an inner ring, an outer ring, and a series of rolling elements. A rolling surface of each rolling element is in contact with a raceway surface formed in each of the inner and the outer rings. At least one of the raceway surfaces of the inner and outer rings and the rolling surfaces of the rolling elements is provided with a topography comprising recesses which are generally isolated by lands. The recesses are formed by shot peening at least one of the surfaces. In addition, the recesses are provided with lubricant.

Method of manufacturing a rolling element bearing with improved rolling contact surfaces

An actuator comprises a housing () which contains a screw mechanism () and a motor () which is drivably connected to the screw mechanism (), said screw mechanism providing a linear movement in response to a rotational movement of the motor, and comprising a screw () and a nut () one of which is supported rotatably with respect to the housing (). The linearly displaceable member of the screw mechanism is drivingly connected to a pump mechanism for providing a flow of medium.

Actuator having a central support and brake calliper comprising such actuator

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

An actuator ( ) comprises a housing ( ) which contains a screw mechanism ( ) and a motor ( ) which is drivably connected to the screw mechanism ( ), said screw mechanism ( ) providing a linear movement in response to a rotational movement of the motor ( ), and comprising a screw ( ) and a nut ( ) one of which is supported rotatably with respect to the housing ( ) by means of a rolling element bearing ( ). Support means ( ) have been provided which extend axially with respect to the screw mechanism ( ), said support means ( ) engaging the housing ( ), and supporting the screw mechanism ( ) so as to take up the axial loads exerted on said screw mechanism ( ).

Actuator having a central support, and brake calliper comprising such actuator

A rolling element bearing comprises an inner ring, an outer ring and a series of rolling elements the rolling surface of which is in contact with the raceway surfaces of both rings, and possibly at least one flange the surface of which is in slidable contact with the end surface of a roller element, at least one of these surfaces ( ) being provided with a topography comprising recesses ( ) which are generally isolated from each other by lands ( ) and which may contain a lubricant. The recesses have a maximum size of 100 micrometer in a direction parallel to the surface in question.

Rolling element bearing with improved rolling contact surfaces

An electric actuator ( ) comprises a housing ( ) which contains a screw mechanism ( ) and an electric motor ( ) which is driveably connected to the screw mechanism ( ), said screw mechanism ( ) providing a linear movement in a rotational movement of the electric motor ( ) and comprising a screw ( ) and a nut ( ), one of which is supported with respect to the housing ( ), a sensor ( ) being provided for measuring a quantity related to the rotational movement and/or the linear movement of the screw mechanism ( ). A control unit ( ) for monitoring and/or influencing the rotational and/or the linear movement of the screw mechanism ( ) on the basis of signals from the sensor ( ) has been provided.

Electric actuator with control sensor, and disc brake 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

An electric actuator (,) comprises a housing (,) which contains a screw mechanism (,) and an electric motor (,) which is driveably connected to the screw mechanism which provides a linear movement in response to a rotational movement of the electric motor (,), said screw mechanism (,) comprising a screw (,) and a nut (,) one of which is supported rotatably with respect to the housing (,) by means of an angular contact ball bearing (,), said angular contact ball bearing (,) comprising two pairs of contact points the working lines (,) of which intersect each other. One pair of contact points has a working line (,), the angle of which with respect to the axis (,) of the bearing (,) is smaller than the corresponding angle of the other working (,) line.

Electric actuator and calliper brake comprising such actuator

An electric actuator (,) comprises a housing (,) which contains a screw mechanism (,) and an electric motor (,) which is driveably connected to the screw mechanism (,) which provides a linear movement in response to a rotational movement of the electric motor (,), said screw mechanism (,) comprising a screw (,) and a nut (,) one of which is supported rotatably with respect to the housing (,) by means of an angular contact ball bearing (,), said screw (,) by means of an intermediate coupling element (,) engaging an actuating member (,) for transferring axial forces. The intermediate coupling element (,) engages the screw (,) by means of an axial connection (,) which allows radial movements.

Growing community of inventors

Tiel, Netherlands

Alexander Jan Carel De Vries