Schaeffler Technologies Ag & Co .kg

Ina Schaeffler Kg

Ina Walzlager Schaeffler Ohg

Dietmar Rudy

Martin Menges

Wolfgang Bauer

Ralf Moseberg

Peter Lutz

Michael Heid

Patrick Daniel

Peter Keller

Rainer Kleber

Michael Rebmann

Dieter Adler

Manfred Kraus

Matthias Ehrlich

Thomas Winkler

Ralf Mayer

Horst Gredy

Matthias Dohr

Thomas Motz

Peter Heipt

Matthias Herbrich

Lothar Neufang

Bettina Rudy

Viktor Franz

Klaus Baalmann

Jorg Wagner

Dagmar Munch

Christian Hecker

Mario Natale

Vincent Pommel

Henning Dombek

Michael Kurz

Jörg Wagner

Roland Ruffing

Anna Kania

Matthias Schmidt

Dagmar Münch

Jurgen Osterlaenger

Boris Djakovic

Jean Walter

Marko Heyne

Jürgen Osterlaenger

A gearshift for a bicycle having an electric auxiliary drive including a stepped gear system which is embodied as a hub gear system or derailleur system, and an electromechanical actuator for triggering a gear change of the gear system. The electromechanical actuator has a shift control unit which can be or is connected via a data line to a drive control unit of the auxiliary electric drive, which shift control unit is designed to activate the actuator as a function of at least one state parameter transmitted to the shift control unit by the drive control unit, or as a function of an item of information derived from said state parameter.

Gearshift for a bicycle and bicycle with such a gearshift

A method for producing a planetary screw drive and a kit for carrying out the method, in which a number of basic planetary roller sets composed of mutually dissimilar basic planetary rollers having different groove profiles are formed; wherein all planetary rollers belonging to a planetary roller set for lead screws with a same number of threads are taken from one particular basic planetary roller set; and wherein for each number of threads for a lead screw there is one particular basic planetary roller set, the basic planetary rollers of which are different from the basic planetary rollers of another particular basic planetary roller set.

Method for producing a planetary screw drive and kit for carrying out the method

A linear actuator including an electric motor having a stator and a rotor, in addition to a screw drive having a spindle and a nut which is guided by the rolling element on the spindle and which is coupled to the rotor. The nut is mounted in a rotationally fixed manner on a housing component by a planetary roller bearing.

Linear actuator

A hydrostatic profiled rail guide, having a guide carriage () which is arranged on a guide rail () so as to be longitudinally slidable and is hydrostatically mounted on said guide rail, wherein the guide carriage has pressure pockets and pocket surfaces arranged around the pressure pockets, and wherein the guide rail on the faces thereof facing towards the pressure pockets has rail running surfaces () for hydrostatic mounting of the guide carriage on the guide rail, wherein the pocket surfaces formed on the guide carriage have a first coating formed of a Cu/Sn alloy.

Hydrostatic profiled rail guide

A guide carriage of a linear guide, which guide carriage has a back () and legs () bent away from the back () and disposed along a longitudinal axis of the guide carriage for engaging over a guide rail (), the two legs () are each provided with a longitudinal seal () having rod-shaped bodies () each of which has a sealing lip () on sides facing one another. The rod-shaped body () is supported on an abutment () of the leg () provided along the longitudinal axis, wherein the rod-shaped body () is retained on the guide carriage together with the two axial rod ends () of the rod-shaped body () and is spring-loaded against the abutment () by means of the inherent spring force of the rod-shaped body ().

Guide carriage of a linear guide

A nut () for a planetary roller screw drive is provided. A sleeve () which is produced by metal forming is provided, and two rings () that lie at a fixed distance with respect to each other in the axial direction are provided in this sleeve. In order to engage planets (), the one ring () has the one groove profile (), and the other ring () has the other groove profile ().

Nut of a planetary roller screw drive, and method for producing such a nut

A planetary roller gear drive with a spindle nut () that is arranged on a threaded spindle () and with planets () that are arranged distributed around the periphery and are in rolling engagement with the spindle nut () and the threaded spindle (). The planets () revolve on planetary orbits (P) that are arranged perpendicular to the spindle axis and the planets () are each divided into multiple planet parts arranged one behind the other in the axial direction.

Planetary roller gear drive

A linear ball bearing for longitudinally movable mounting of a shaft-like guide rail in a part surrounding the guide rail, which has a sleeve-like cage with recesses arranged one behind the other in the circumferential direction holding ball circuits which have at least one supporting section with supporting balls which are supported such that they can roll on the guide rail. The supporting balls are also supported such that they can roll on a raceway of a supporting race element inserted indirectly or directly into the cage. The supporting race element has at least one radial outer surface, arched outward at least in one direction, for contact against an inner surface of the part which surrounds the guide rail. The outer surface is formed by at least one web-like projection extending in the longitudinal direction of the supporting race element.

Linear ball bearing and supporting race element for the same

A guide rail of a linear guide, on guide surfaces on which a guide carriage is longitudinally displaceable. A material measure is arranged at a distance, preferably in parallel, to the guide rail and is fastened to the guide rail by means of a mount. The guide rail has a groove or a hole arranged outside the guide surface. The mount can be detachably fastened by means of expanding elements that engage with the groove or into the hole.

Guide rail of a linear guide

A linear guide, which has at least one approximately U-shaped carriage with side limbs that engage at least partially over a guide rail, at least two recirculating ball shoes for the longitudinally movable support of the carriage with respect to the guide rail and adjusting means for pressing the recirculating ball shoes against the guide rail without play. At least one component is provided which has, in cross-section, at least one wedge-shaped portion, which projects at least partially into a likewise wedge-shaped intermediate space between at least one recirculating ball shoe and one of the side limbs. It is possible to realize reliable and automatic play adjustment which can be realized in a cost-effective manner, with a compact design of the linear guide being maintained.

Linear guide

A hydrostatic mounting of longitudinally displaceably arranged machine parts, which have pressure pockets for hydraulic fluid for building up a hydrostatic pressure between two machine parts, gaps for the hydraulic fluid which are adjacent to the pressure pockets and are delimited by gap faces of the two machine parts, drainage for the reception of hydraulic fluid, and at least one seal arranged between the machine parts and surrounding the drainage sealing against leakage of hydraulic fluid out of the hydrostatic mounting. At least one circumferential portion of the seal has an outer sealing lip and an inner sealing lip. The inner sealing lip is adjacent to the gaps, and a vacuum-loadable drainage portion of the drainage is arranged between the two sealing lips.

Hydrostatic mounting

Hydrostatic profile rail guide with a guide carriage that is hydrostatically mountable on a guide rail, whereby the guide carriage features a back and two sides that are attached to the back, between which the guide rail is located, whereby the back features a mounting surface on the side facing away from the guide rail for the mounting of, for example, a machine part, with the mounting surface concave when seen in the longitudinal direction of the guide rail.

Hydrostatic profile rail guide

A linear guide, which has a guide carriage that is mounted in a longitudinally moveable manner on a guide rail and to which an additional component, for example a measuring head, can be fastened by a fastening device. The fastening device has a pin which is fastened to the guide carriage at the end side. The pin has a fastening section to which the additional component can be fastened, that projects from the guiding carriage at the end side.

A hydrostatic profile of a rail guide with a guide carriage. Viewed in cross-section through the rail guide, there is an imaginary first straight line parallel to the mid-surface, an imaginary second straight line parallel to an upper bearing surfaces and a third imaginary straight line parallel to a lower bearing surface. An angle alpha is formed between the first and the second straight lines, and an angle gamma is formed between the first and the third straight lines. The angle alpha has values of 10&#xb0; to 45 &#xb0; inclusive and the angle gamma has values of 20&#xb0; to 55&#xb0; inclusive.

Linear guide unit, having a guide carriage () which is arranged such that it can be displaced longitudinally on a guide rail (), and having a length measurement system, the measuring head () of which interacts with a measuring scale () which is arranged parallel to the guide rail (), the measuring scale () being arranged in a hollow body which carries the measuring scale (), is arranged at a spacing from the guide rail () and is mounted at its ends.

Growing community of inventors

Kleinbundenbach, Germany

Dietmar Rudy