Schaeffler Technologies Ag & Co .kg

Ina Walzlager Schaeffler Kg

Ina Walzlager Schaeffler Ohg

Ina W&auml;lzlager Schaeffler Ohg

Erich Lunz

Jurgen Oetjen

Helmut Bode

Reinhard Schwinghammer

Jean-Marie Eder

Frank D&uuml;rschmied

A bearing ring is provided, including a body and an end face (). The problem of providing a bearing assembly having a space-saving preloading device which can be actuated quickly is solved for this bearing ring by a piston () of a fluidic preloading device; the piston being accommodated in the end face (). A bearing assembly is also provided including a bearing () having a bearing ring () and a first fluidic preloading device for setting a bearing preload, this preloading device acting on a first end face () of the bearing ring (), and further including a second fluidic preloading device which acts in the opposite direction on a second end face () of the bearing ring ().

Bearing ring comprising a hydraulic preloading means and bearing assembly comprising such a bearing ring

A ready-to-install needle bearing including a thin-walled outer ring () that is shaped without cutting and is provided with radially inwardly-facing stop rims () on both sides. Needle rollers () roll between the stop rims () on an associated external raceway (). The inventive needle bearing is characterized in that an associated internal raceway () is formed by a thin-walled inner ring () which is shaped without cutting and is fitted with radially outwardly-facing stop rims () on both sides. The needle rollers () roll in a cageless manner or are disposed in a cage such that a captive ready-to-install needle bearing unit is created by using a positive gripping action, thus dispensing with the need for a part that is to be mounted having to act as a raceway.

Ready-to-install needle bearing comprising an inner and outer ring

A linear motor includes a secondary part ( ) having several permanent magnets ( ) disposed behind one another with alternating orientation of the polarity, or excitation windings. These permanent magnets ( ) or excitation windings are wound helically around a rotation axis. Furthermore, there is provided a primary part ( ) having a current-carrying winding disposed in parallel relationship to the permanent magnets ( ) or excitation windings and arranged about the rotation axis such that a magnetic traveling field travels helically about the rotation axis.

Linear motor

A joint with a pin (,) comprising an inner member (,), a center member (,), a housing body (,) and a flange ring (,) arranged in one another via rolling bearings (,) for pivoting or rotating about their rotational axis (,) which advantageously create a rolling bearing-mounted joint which has a high rigidity and a comparatively low frictional and pivoting resistance useful for achieving a high positioning precision in machine tools of a hexapod system.

Joint mounted on rolling bearings

A machine tool includes several telescopic struts, each of which being formed by an inner tube and outer tube arranged within one another. The telescopic struts are articulated at their one end to a frame and at their other end to a tool holder. The outer tube is formed with a plurality of circumferentially spaced recesses, with each of the recesses accommodating a recirculating ball bearing unit which includes a carrier body provided with endless ball tracks. Each endless ball track is divided in a load-bearing section and an unstressed, non-load-bearing return portion. The inner tube has ball tracks, with balls rolling along the ball tracks of the carrier body and the inner tube whereby the balls are guided from the load-bearing section into the return section.

Machine tool with adjustable strut assembly

An apparatus for height adjustment of a rolling bearing for longitudinal movement comprising a support body having two straight parallel race sections connected at their ends by two semicircular race sections, said support body being encircled by a guide element for guiding and/or holding rolling bodies in the race sections, the rolling bearing being supported by two adjusting wedges moveable relative to each other whose wedge surfaces are inclined opposite to each other in the longitudinal direction of the race, characterized in that the support body extends beyond the guide element transverse to the longitudinal race direction and the adjusting wedges having through recesses engaging the guide element and the zones of the support body extending beyond the guide elements being supported by lateral faces of the adjusting wedges delimiting the recesses.

Bearing adjustment apparatus

Novel recirculating rolling bearings for the longitudinally moveable mounting of an element with a linear surface comprising a bearing body having two opposite straight race sections limited by lateral flanges connected by two curved end deflecting sections connecting the ends of the straight sections to form a closed raceway and rolling bodies in said closed raceway rotating about an axis, the bearing body having a cylindrical outer contour and is insertable into a corresponding cylindrical bore of a housing which bore is open toward the element to be supported in the area of one straight race section opposite said element, the common axis of the bearing body and the housing bore having a slight inclination relative to the straight race section opposite the element to be supported.

Growing community of inventors

Lonnerstadt, Germany

Erich Lunz