Deutsche Star Gmbh

Deutsche Star Kugelhalter Gmbh

Gunter Blaurock

Ernst Albert

Rudolf Schlereth

Klaus Reichert

Werner Blaurock

Michael Klein

Hans-Georg Stender

Rainer Hofling

Bernhard Hutzel

Benno Peichl

A guide carriage 12 is guided on a guide rail 10 by rollers 12a. The rollers 12a engage guideways 10c. For lubricating the guideways 10c there are mounted on the end faces of the guide carriage 12 plate-shaped housings 14. Constructed in these plate-shaped housings are guides 24 for lubricating element fittings 26. The lubricating element fittings accommodate track lubricating elements 34 of felt. The lubricating element fittings 26 are pressed against the guideways 10c by pre-tensioning springs 42. The track lubricating elements 34 are captively accommodated in the lubricating element fittings 26. The lubricating element fittings 26 are captively guided in the guides 24. The track lubricating elements 24 are in a lubricant conductive connection with lubricant supply chambers 40 within the plate-shaped housing 14.

Linear guide means

In a rolling bearing for linear movements, two rolling member circuits arranged between one arm of a U-shaped guide carriage and a lateral face of a guide rail, are substantially perpendicular to one another with their force transmission planes and are substantially parallel to one another with their circuit planes. All rollers have parallel axes in each of the two roller circuits. The load-transmitting row of rollers and the return row of rollers are offset from one another in the axial direction of the rollers in both roller circuits.

Rolling bearing for linear movement

A linear ball bush comprises a cage having a cage axis and a plurality of ball circuits, at least one ball circuit comprising two straight ball rows substantially parallel to the cage axis and two curved ball rows connecting the two straight ball rows, and a plurality of runner plates which each provide for the guidance of the ball circuit. The runner plates comprise straight track sections continued with substantially constant profile over their entire length, and between these a middle rib which is continued to each of the runner plate ends with substantially constant profile. The curved track sections connect the straight track sections and pass transversely through the middle rib.

Linear ball bush

A rolling support device or ball roller comprises a main ball housed in a casing comprising a substantially hemispherical bearing bush, an outer shell and a retaining ring assembly connected to the outer shell to retain the main ball and the bearing bush therein with a portion of the ball exposed through the ring to contact a member to be supported thereby; the outer shell is shaped to be received in an opening in a supporting member and the retaining ring defines a shoulder determining the limit of insertion; resilient tongues projecting from the casing act to retain the device in such an opening, for which purpose the tongues have an elbow portion each provided with at least one radially outwardly projecting tooth for biting into the side wall of an opening receiving the device to resist withdrawal thereof.

Rolling member

An anti-friction bearing is provided in which two cage halves have end plates inserted in the bearing main body. The end plates have bearing member deflection surfaces. Retaining webs originating from the end plates abut one another in a plane normal to the axis. The bearing members (e.g. balls or rollers) are deflected on deflection surfaces inside the end plates. The retaining webs are designed in such a way that, in each case, two retaining webs in alignment with one another and originating from end plates located opposite one another are sufficient to hold the load-transmitting bearing member rows of two bearing member circuits in engagement with the respective bearing member tracks of the bearing main body.

Anti-friction bearing

In a screw drive, in particular a ball screw drive, a double nut, formed of a pair of individual nuts, is tightened on a threaded spindle and the individual nuts are secured together against relative rotation by a locking member. The locking member is secured within a radially extending recess formed in and bridging the individual nuts. The locking member can be inserted with a certain amount of play into the recess or borehole and then secured within the recess by a cement or similar material so that it cannot be displaced. Various types of locking members can be used, such as locking bolts or threaded bolts. When the locking member is connected into the recess or ball it prevents any rotation of the individual nuts relative to one another.

Double nut and method of forming the double nut

A spindle drive assembly includes a spindle and a spindle nut defining a helical ball duct therebetween through which a plurality of recirculating balls may pass during relative rotation between the spindle and the spindle nut to effect transmission of axial forces therebetween. A helical internal ball guide formed on the spindle nut and defining one side of the helical ball duct is formed with at least one compensating slot which extends to the walls of the helical internal guide in order to effect circumferential division of the spindle nut to enable the spindle nut to radially adapt to compression forces applied by the clamping device extending about the spindle nut to provide radial compression maintaining the balls in operative load-bearing engagement within the helical duct. The slot is formed with a width taken circumferentially of the spindle nut which is not greater than 15% of the diameter of the recirculating balls, and preferably not greater than 10% of the ball diameter.

Spindle drive assembly with recirculating balls

A bearing assembly operatively interposed between a shaft and a housing having said shaft axially movably mounted therein for torque transmission therebetween includes a ball bushing inserted into a bushing receiving bore in the housing and guided through ball rings in ball races, with at least one of said ball rings being a load-transmitting ring including a load-transmitting ball ring section which rests radially inwardly against the shaft and radially outwardly against an external support surface defined by the ball bushing. The load bearing ball ring section of the at least one ball ring engages a race groove in the shaft on the shaft side of the ball ring and it engages a race groove of a bearing plate mounted in the ball bushing on the ball bushing side of the ball ring in a manner to transmit torque therebetween. The bearing plate may be pressed radially inwardly by means of a clamping device which presses against the ball bushing through contact surfaces which are oriented to intersect resultant planes generated by torque transmitting forces transmitted through the torque transmitting ball ring which are parallel to the bushing axis at an angle to insure a self-locking action.

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Niederwerrn, Germany

Gunter Blaurock