Ina Schaeffler Kg

Schaeffler Technologies Ag & Co .kg

Volkswagen Ag

Luk Lamellen Und Kupplungsbau Beteiligungs Kg

Jurgen Osterlanger

Manfred Kraus

Dieter Adler

Ralf Mayer

Stefan Herzig

Stefanie Barthlein

Ernst Strian

Josef Miko

Rainer Miersch

Kark-Ludwig Grell

Gunter Hartig

Horst Munck

Wolfgang Reik

Harald Hochmuth

Thomas Pfund

Marco Meisborn

Thomas Dirnberger

Jorg Wagner

Planetary roller gear drive with a spindle nut () that is arranged on a threaded spindle () and is divided into nut parts () that can be adjusted relative to each other in the axial direction, and with a plurality of planets () that are arranged distributed around a periphery and are in roller engagement with the spindle nut () and the threaded spindle (). An adjustment part () set in the axial direction against the one nut part () that can be adjusted in the axial direction is provided and the one nut part () that can be adjusted in the axial direction is arranged between this adjustment part and the other nut part ().

Planetary roller gear drive

A method for producing a threaded nut () of a screw drive, in particular of a ball screw (), which threaded nut () has, on one axial end, a recess () which extends over a circumferential segment and which is open at the end side, wherein said recess () is delimited radially by a circumferential wall of the threaded nut (), and wherein said recess () is delimited axially by a base () formed on the threaded nut (), and wherein said recess () is delimited in the circumferential direction by a stop surface (), which is formed on the threaded nut (), for a projection (), produced according to the following steps: a blank is deformed in a deformation process by deformation of material so as to form the recess (), wherein the base () and the stop surface () and the circumferential wall are integrally connected to one another.

Ball screw for producing a threaded nut of a ball screw drive

A spindle nut for a ball screw is provided, having a continuous ball track () for balls (), a ball groove () for the balls () extending on an inner periphery of the spindle nut about the rotational axis thereof and along a helical line, the ball groove extending across at least one thread (), and a diversion device (), in order to divert with its diverting channel () balls () from one end of the thread () to the beginning of the thread (). The spindle nut is provided with ball inlets (), on the one side connected to the ball groove () and, on the other side connected to the diverting channel (), with the ball groove () and the ball inlet () both having identical cross-sectional profiles.

Method for producing a spindle nut for a ball screw

A ball screw (), having a threaded spindle () which is mounted in a rolling fashion by balls () on a threaded nut () and which is supported on an axial bearing (), wherein the threaded spindle () is axially supported with its first bearing surface (), which is convexly shaped with a radius of curvature (R), on a preferably conically designed second bearing surface (), wherein the first bearing surface () and the second bearing surface () make contact with one another along a contact path (), wherein a quotient formed from the ratio of the radius of curvature (R) to the radius (R) of the contact path () assumes values of between 1.2 and 2.4 inclusive.

Ball screw drive having an axially supported threaded spindle

A braking device, in particular for a motor vehicle, which has a brake disk, a brake caliper fitting around the brake disk, and two brake pads, which rest against the brake disk for the purpose of braking. One of the brake pads can be moved by a motor-driven ball screw which has a threaded spindle and a threaded nut. The ball screw is accommodated within the brake caliper. The threaded nut is connected to a piston which has the brake pad and which is seated on the threaded nut in such a way that it can be tilted relative to the threaded nut, and/or wherein the threaded spindle is mounted on the brake caliper in such a way that it can be tilted relative to the brake caliper.

Braking device, in particular for a motor vehicle

The ball screw mechanism has spindle nut () arranged rotatably on a ball-rolling spindle () and between which balls () roll on ball grooves (). A driving wheel () is fixed to the spindle nut (), for driving the spindle nut. ()The spindle nut () is mounted on a housing () by a rolling bearing (). The bearing has an outer ring () fixed to the housing () the outer ring () has a ring () surrounding the spindle nut (), and a bearing running surface () formed on the inner circumference of said the ring A radial flange (), adjoining the ring (), is fixed to the housing ().

Ball screw mechanism

Ball screw having a spindle nut () arranged on a spindle (), together with balls () which are arranged in a series and are capable of rolling in a helical ball track (), the helical ball track () being defined by a thread groove () formed on the spindle () and by a thread groove () formed on the spindle nut (), the balls () arranged in a series being returned in a return duct () from an outlet end to an inlet end of the helical ball track (), the divided circle end play of the series of balls being less than or equal to 0.3 millimeters or the ratio between the pitch of the helical ball track () and the diameter of the balls () ranging from 1.02 to 1.2 or the thread grooves () of the spindle nut () and of the spindle () in each case having a gothic profile (), a pressure angle formed by the balls () in contact with the gothic profile () ranging from 15 to 35 degrees.

Ball screw

A ball screw drive comprising a spindle nut () that can be disposed on a spindle (), said spindle nut () comprising on an inner periphery, a ball groove () that is arranged along a helix and defines a load-bearing channel () for balls (), an external deflector () arranged outside of the spindle nut () connecting the two ends of the load-bearing channel () endlessly to each other for deflecting the balls () from one of the two ends of the load-bearing channel () to the other of the two ends of the load-bearing channel (), a drive pinion for driving the spindle nut () being arranged on the spindle nut (), wherein the external deflector () is arranged at least substantially within an axial length of the drive pinion.

Ball screw drive

Ball screw, between the spindle nut () and threaded spindle () of which at least one ball chain () formed from balls () rolls in each case along a ball channel () which is delimited by ball grooves () formed on the spindle nut () and on the threaded spindle (), the ball chain () being deflected from one end of the ball channel () to a start of this ball channel () in deflection portions of the ball channel (), one or more spring elements () arranged in the ball chain () between balls () of the ball chain () exerting a pressure force on the balls () in the axis of the ball chain ().

In a ball screw drive comprising a spindle nut () that can be disposed on a spindle (), said spindle nut () comprising on an inner periphery, a ball groove () that is arranged along a helix and defines a load-bearing channel () for balls (), an external deflector () comprising a return channel () for the balls () being arranged on an outer periphery of the spindle nut (), said external deflector () comprising two ball openings (E, E), each of which is connected to an end of the load-bearing channel () to deflect the balls () from one end of the load-bearing channel () to the other end of the load-bearing channel (), the external deflector () extends from one of the two ball openings (E) to the other of the two ball openings (E) at least approximately over one full winding about an axis of rotation of the spindle nut ().

The invention relates to a roll stabilizer for the chassis of a motor vehicle, comprising an actuator (), which is mounted between anti-roll bar halves () and which rotates these about a rotation axis in opposite directions as necessary. The curved path carriers () of the actuator that are assigned to the roll stabilizer halves () are each provided with a curved path () inside of which a coupling element () is guided that can be displaced along these curved paths () via an actuating drive (). The U-shaped or V-shaped curved path () of one curved path carrier () has two curved path branches () that are arranged in a mirror symmetric manner in relation to a longitudinal central plane containing the rotation axis of the actuator ().

Anti-roll bar for the chassis of a motor vehicle

A friction clutch arrangement for motor vehicles to control a clutch friction disk rotationally mounted on a transmission shaft which can be locked between two components has a clutch actuating device which includes a slave device adjacent to the clutch, a master device remote from the clutch and a force transmission system between the two devices. The slave device has an annular housing having an axial extension with a radially outer part and a radially inner part which are arranged concentrically to form an annular space containing a movable piston which is engagable with the clutch friction disk. A piston sensor in the radially inner part of the axial housing extension makes it possible to determine the position of the piston in the slave cylinder independently of external influences such as vibrations or dirt or of the influence of neighboring components.

Friction clutch arrangement

A friction clutch arrangement for motor vehicles to control a clutch friction disk rotationally mounted on a transmission shaft which can be locked between two components has a clutch actuating device which includes a slave device adjacent to the clutch, a master device remote from the clutch and a force transmission system between the two devices. The slave device includes a fixed cylinder containing nonferromagnetic conductive material, a movable piston and a variable inductance travel sensor extending substantially parallel to the path of the piston which makes it possible to determine the position of the piston in the slave cylinder independently of external influences such as vibrations or dirt or of the influence of neighboring components.

A friction clutch arrangement for motor vehicles to control a clutch friction disk rotationally mounted on a transmission shaft which can be locked between two components has a clutch actuating device includes a slave device adjacent to the clutch, a master device remote from the clutch and a force transmission system between the two devices. The slave device has an annular housing having an axial extension with a radially outer part and a radially inner part which are arranged concentrically to form an annular space containing a movable piston which is engagable with the clutch friction disk. A piston sensor sealed in the radially outer part of the axial housing extension makes it possible to determine the position of the piston in the slave cylinder independently of external influences such as vibrations or dirt or of the influence of neighboring components.

Growing community of inventors

Emskirchen, Germany

Jurgen Osterlanger