Luk Lamellen Und Kupplungsbau Beteiligungs Kg

Schaeffler Technologies Ag & Co .kg

Ina Walzlager Schaeffler Ohg

Uwe Abraham

Ludwig Winkelmann

Wolfgang Fugel

Dieter Adler

Manfred Kraus

Urban Panther

Peter Giese

Gerhard Meyer

Roland Welter

Jean-Francois Heller

Rainer Venz

Ulrich Helfmeier

Manfred Jansen

Wolfgang Sulger

Axel Rogner

Ernani Almeida

Volker Lang

Alexander Zernickel

Manfred Winkler

Georg Von Petery

Peter Jennes

Andreas Droege

Andreas Dröge

A multiple-row and axially biased angular ball bearing with a one-piece outer ring and an inner ring that has two inner ring halves. In order to facilitate an easy and precise setting of the desired pretensioning force and to produce a transport-safe mount cartridge, it is intended that the axial distance of at least two close-end contact surfaces of the angular ball bearing should be equal to zero in the pretensioned state, and that the axial distance of at least two close-end contact surfaces of the angular ball bearing should be greater than zero in a nonpretensioned state.

Multiple row, axially biased angular ball bearing and method for production thereof

The friction clutch between the prime mover and the change-speed transmission in the power train of a motor vehicle is actuatable by a slave cylinder cooperating with a master cylinder wherein the piston is movable by a clutch pedal or by an electric actuator. The casing of the slave cylinder is made, at least in part, of a plastic material and defines a plenum chamber arranged to receive pressurized fluid from the master cylinder by way of a conduit extending through a bell which contains the clutch and the slave cylinder. The annular piston of the slave cylinder surrounds the input shaft of the transmission. The plastic material of the casing of the slave cylinder can contain one or more additives which enhance its strength and/or influence its frictional engagement with the adjacent surfaces of the piston or of a lip seal which reciprocates with the piston. The piston and/or the lip seal can be installed in the casing to contact one or two metallic or plastic guide sleeves which are connected to or form part of the casing.

Hydraulic operating arrangement for clutches and the like

The invention concerns a centering device for steering valves of automotive vehicles and is characterized in that a needle roller bearing (,) is arranged between the drive shaft (,) and the valve bushing (,), said needle roller bearing (,) having an outer bearing ring (,) which is configured as a thin-walled sleeve which comprises, in at least one peripheral section, an elastically yielding raceway convexity (,) deviating from the circular shape, and said peripheral section comprises an angular groove (,) which is situated radially opposite an angular groove (,) disposed in an associated portion of the drive shaft (,). The needle roller bearing (,) of the invention assures a fine centering to the hydraulic center of the steering valve.

Centering device for steering valves

Growing community of inventors

Recklinghausen, Germany

Uwe Abraham