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Assignee: SKF Engineering and Research Centre B.V.


Location: Nieuwegein, NL
No. of patents: 42

1    
NumberTitleIssue Date
7264399Rolling element bearing having starved lubrication conditions
A rolling element bearing comprises an inner ring and an outer ring which are each provided with a raceway, and a series of rolling elements which are in contact with the raceways of each ring. A lubricant film is provided in the contacts between the rolling element...
09/04/2007
7024771Method of manufacturing a rolling element bearing with improved rolling contact surfaces
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...
04/11/2006
7021416Vehicle control with manual back up
A manual control device for electrically driven and controlled steering, and/or accelerating and/or decelerating of a road vehicle, that includes a hand grip device, sensors for sensing a force and/or a movement imposed on the hand grip device which correspond to a ...
04/04/2006
7017704Steering device for a drive-by-wire vehicle
A steering device (1) for drive-by-wire functions in a vehicle comprises a base (2) which can be fixed to the vehicle interior at the location of the driver, and two steering grips (3, 4) at opposite sides of the base, which steering grips each ...
03/28/2006
6932184Electric steering system with mechanical back-up device
A steering system for an automotive vehicle, includes a steering device to be operated by a driver, a rotatable connection having a drive end connected to the steering device and a drive end connectable to a linkage of the steering wheels of the vehicle. The drive e...
08/23/2005
6920801Measurement device for measuring radial and/or axial forces
Measurement device (1) for measuring the axial and/or radial load on a bearing (10) comprising an inner ring (11), an outer ring (12) and a plurality of rolling elements (13) between the inner and outer ring. The measurement device...
07/26/2005
6907967Compact actuator
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 mo...
06/21/2005
6848557Clutch actuator unit
A clutch actuator unit comprises a housing (8, 9), a screw mechanism and an actuator head which at one end engages the screw mechanism (1, 2) and at the other end has an actuating end (18), which actuator head (16) can be displaced in axi...
02/01/2005
6837818Continuously variable transmission system
A continuously variable transmission system comprises a continuously variable transmission having two pulley sets each with two discs defining a V-shaped groove, drive means-for varying the width of said groove and a belt extending between said-pulley sets in the gr...
01/04/2005
6837946Method for the production of a part of a rolling bearing
Method for the production of a part of a rolling bearing, such as a ring for a ball bearing. The starting material used is a grade of steel containing 0.90 1.00% C; at most 0.15% Si; 0.25-0.45% Mn; at most 0.0015% P; at most 0.010% S; 1.30-1.50% Cr; at most 0.15% Ni...
01/04/2005
6837342Actuator having a central support and brake calliper comprising such actuator
An actuator comprises a housing (8) which contains a screw mechanism (9) and a motor (10) which is drivably connected to the screw mechanism (9), said screw mechanism providing a linear movement in response to a rotational movement of the...
01/04/2005
6814190Screw actuator, and brake caliper comprising such actuator
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...
11/09/2004
6763918Actuator having compact gear reduction
A screw actuator comprises a housing (1), a nut (A) and a screw (16) 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 (...
07/20/2004
6739436Actuator comprising a sleeve support
A screw actuator (4) comprises a housing (1), a nut (5) and a screw (6) 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 (21), a...
05/25/2004
6719103Actuator with misalignment compensation
An actuator (5) comprises a housing (4) with a motor (6) and a screw mechanism (9), said screw mechanism comprising nut (10) and a screw (11) one of which is rotatably supported with respect to the housing by means of a scre...
04/13/2004
6705761Bearing with integral transformer
A bearing is provided including a first part provided with a first coil (4) and a second part rotatable with respect to the first part about a bearing axis and being provided with a second coil which is electromagnetically coupled to the first coil. The first...
03/16/2004
6695590Lubricant pump having piston with radial through opening
A lubricant pump having a housing equipped with outlets and a lubricant chamber, and having a piston axially displaceable in an axial cylinder bore in the housing by means of an electrical drive arrangement. The piston is at a first end and has an axial o...
02/24/2004
6691848One-way clutch
A one-way clutch including at least two concentric rings one of the rings carrying at least one ratchet pawl, and the other of the rings including ratchet teeth which engage the at least one ratchet pawl so as to allow relative rotational movement of the ...
02/17/2004
6691837Screw actuator with lubricant dosing, and brake calliper
A screw actuator comprises a nut and a screw each comprising helical grooves, said nut and screw engaging each other by rollers or balls which are in contact with said grooves, a lubricant being provided for the grooves and rollers or balls. Integrated in...
02/17/2004
6689000Pulley set for a continuously variable transmission unit
A pulley set for a continuously variable transmission unit, comprises a pair of discs accommodated on a shaft, and a screw mechanism which is concentric with respect to said discs and for moving the discs towards and from each other, said discs enclosing ...
02/10/2004
6684988Drum brake and electric actuator therefor
An actuator for a drum brake comprises a housing (1), a screw mechanism having at least one screw (3,6) and a nut (4, 7), which screw mechanism (2) is supported with respect to the housing (1), and drive means (3) which are drivingly connected to the scre...
02/03/2004
6666308Modular actuator, and brake calliper comprising such actuator
An actuator comprises a housing, a motor (5), an actuating member (11, 12) and a screw mechanism (2) providing a linear movement of the actuating member (11, 12) with respect to the housing in response to a rotational movement of the motor (5), which scre...
12/23/2003
6626778Continuously variable transmission unit
A continuously variable transmission unit comprises two pulley sets (1, 2) which each comprises a pair of discs (66, 67) and a screw mechanism (12, 13) which is concentrated with respect to a pulley set (1, 2) for moving the discs (66, 67) of the pulley s...
09/30/2003
6607059Screw actuator comprising a multi-purpose sleeve, and brake calliper
A screw actuator comprises a screw (1) and a nut (2) which are each provided with at least a helical groove (3,4), and a series of rollers or balls (5) which are in rolling contact with the grooves (3,4). A sleeve (6) is provided which surrounds the nut (...
08/19/2003
6585834Method for performing a heat treatment of metallic rings, and bearing ring thus obtained
A method of performing a heat treatment on steel rings, in particular for bearings, whereby the outer surface and inner surface of a preheated ring are exposed to different flows of a cooling medium such that the regions of the ring adjacent those surface...
07/01/2003
6554109Actuator having a central support, and brake calliper comprising such actuator
An actuator (7) comprises a housing (8) which contains a screw mechanism (9) and a motor (10) which is drivably connected to the screw mechanism (9), said screw mechanism (9) providing a linear movement in response to a rotational movement of the motor (1...
04/29/2003
6540847Rolling structure steel
Rolling structure steel, comprising: 0.90-100% by wt. C; 0.95-1.05% by wt Si; 0.25-0.45% by wt Mn; 0.015% by wt. S max.; 0.025% by wt. P max.; 1.30-1.50% by wt. Cr, and 0.17-0.20% by wt. Mo. Preferably this steel is produced by austenising at 860+20° C.,...
04/01/2003
6527448Asymmetric angular contact bearing
An asymmetric angular contact bearing comprises an inner ring (2) and an outer ring (3) each defining a raceway, at least one ring being provided with a high shoulder (6) and a low shoulder (7) which border the raceway of said ring, as well as a series of...
03/04/2003
6488324Railway vehicle wheel with improved damping characteristics
A railway vehicle wheel always improve damping characteristics when a thin visco-elastic layer is placed between the tire and the connecting disc or ring. The visco-elastic layer improves damping through shearing action and has a thickness that is lower t...
12/03/2002
6471410Coated rolling element bearing
A rolling element bearing comprises an inner ring (3) and an outer ring (2) each provided with a raceway (4, 5), said rings having land regions (10, 11) on opposite sides of their raceways, and a series of rolling elements (6) which are in rolling contact...
10/29/2002
6462497Method and apparatus for energizing rotation-translation converters
A system for controlling an assembly of an electrical motor and a rotation-translation converter is provided. The rotation-translation converter is connected to the electrical motor. The electrical motor is energized with a predetermined current for obtai...
10/08/2002
6461048Cage with improved grease retention
A cage for a rolling element bearing comprises at least one ring shaped body (1, 2) carrying regularly spaced cage bars (5), each pair of adjacent cage bars (5) defining a cage pocket (4) for accommodating a rolling element. At least one of the cage bars ...
10/08/2002
6371656Rolling element bearing with improved rolling contact surfaces
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 cont...
04/16/2002
6367592Modular actuator, and brake caliper 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 mechan...
04/09/2002
6367597Electric actuator with control sensor, and disc brake comprising such actuator
An electric actuator (1) comprises a housing (2) which contains a screw mechanism (3) and an electric motor (4) which is driveably connected to the screw mechanism (3), said screw mechanism (3) providing a linear movement in a rotational movement of the e...
04/09/2002
6340245Coated rolling element bearing
A rolling element bearing, comprises an inner ring, an outer ring and rolling elements which are in rolling contact with the raceways of the inner ring and the outer ring. The rolling elements and/or the raceway (2) of at least one of the rings is coated ...
01/22/2002
6340400Stainless steel
A stainless steel component comprising 0.8-1.4% carbon, 18-26 wt % chromium, 2-4 wt % nickel, 0-1 wt % molybdenum, 0 wt % lead and less than 0.6 wt % silicon provides for beneficial properties. Such a component may be prepared by the provision of an artic...
01/22/2002
6325180Electric actuator and calliper brake comprising such actuator
An electric actuator (13) comprises a housing (7) which contains a screw mechanism (11) and an electric motor (5) which is driveably connected to the screw mechanism which provides a linear movement in response to a rotational movement of the electric mot...
12/04/2001
6318512Actuator having protected screw mechanism, and brake calliper comprising such actuator
An electric actuator (13) comprises a housing (17) which contains a screw mechanism (11) and an electric motor (5) which is driveably connected to the screw mechanism (11) which provides a linear movement in response to a rotational movement of the electr...
11/20/2001
6315457Bearing assembly for a vehicle hub
A bearing assembly for a vehicle hub comprises rolling elements (9, 10) which are in rolling contact with at least one inner raceway (2) and outer raceway (1), of respectively an inner ring member and an outer ring member, one of which ring members compri...
11/13/2001
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