Schaeffler Technologies Ag & Co .kg

Ina Schaeffler Kg

Peter Keller

Dietmar Rudy

Matthias Ehrlich

Sebastian Weis

Waldemar Heier

Thomas Winkler

Mario Arnold

Silvia Kutzberger

Ralf Moseberg

Peter Heipt

Lothar Neufang

Michael Heid

Viktor Franz

Marko Heyne

The disclosure relates to a planetary roller screw drive comprising a threaded spindle nut, a horizontal threaded spindle, a plurality of planetary rolling elements having a planetary rolling element profile, and at least two planetary guide rings. The threaded spindle is arranged concentrically in the planetary guide rings and the spindle nut. The planetary guide rings can be rotated relative to the threaded spindle and the planetary rolling elements are mounted so as to be rotatable about their associated planetary rolling element axis in the planetary guide rings and inside the spindle nut. The planetary rolling element profile of the planetary rolling elements meshes with the threaded spindle. The planetary guide rings are connected to a housing case for conjoint rotation, and the housing case has a housing case lateral surface on which a toothing is formed for coupling in a geared manner to with a continuous traction mechanism.

Planetary roller screw drive

The disclosure relates to a planetary roller screw having: a nut arranged on a threaded spindle and divided crosswise to a spindle axis into two nut parts; planetary rollers arranged between the threaded spindle and the nut distributed over the circumference, the planetary rollers intermeshing with the nut parts and with the threaded spindle; a rotatingly driven planetary roller carrier arranged on the threaded spindle, in pockets of which, arranged distributed over the circumference, the planetary rollers are mounted, held at a distance in the circumferential direction, so as to be rotatable about the planetary roller axis; and a housing in which the planetary roller carrier is rotatably mounted. A pre-loading device is provided in order to adjust an axial pre-load between the housing and the planetary rollers.

Planetary roller screw

A linear rolling bearing, which has a guide carriage that is mounted by rolling bearings on a guide rail, and which has a scraper arranged at least one end side of the guide carriage for scraping foreign objects such as chips, dust and cooling liquids from the guide rail. The scraper is in scraping contact, by its scraping system, preferably by a sealing lip or sealing edge, with the guide rail. The scraper has a first stop for abutment against the guide rail, with the abutment of the first stop indicating an impermissible position of the scraper on the guide rail.

Linear roller bearing

In a linear rolling bearing comprising a guide rail () and a guide carriage () that partially surrounds the guide rail () and is supported for sliding through rolling elements () on two long sides of the guide rail (), the rolling elements () being arranged on each of the two long sides in at least two parallel, endlessly re-circulating rows () of rolling elements () while a spacer () is inserted between every two successive rolling elements () of a row (), on each long side of the guide rail (), a common spacer () for both rows () is inserted between every two adjacent rolling elements () of the one row () and between every two adjacent rolling elements () of the other row ().

Linear rolling bearing

A guide carriage of a linear roller bearing, having at least one endless raceway for rolling bodies (), and having a carrying body (), on the two longitudinal sides of which in each case one carrying section () and one return section () of the endless raceway is provided, the carrying section () being provided rolling bodies () which roll under load and the return section () being provided for rolling bodies () which return without load, and having head pieces () which are arranged on end sides of the carrying body () and in each case have one deflection section () which connects the return section () to the carrying section () a lubricant channel () being provided for the supply of lubricant, which lubricant channel () can be connected to the raceway of the rolling body () via a valve (), the valve () having a slot () which is provide for the passage of lubricant, crosses the cross section of the lubricant channel () and is delimited by slot faces (), the slot faces () bearing against one another when the valve () is shut, with the slot () being closed.

Guide carriage of a linear rolling bearing

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Bruchmuhlbach-Miesau, Germany

Peter Keller