Schaeffler Technologies Ag & Co .kg

Heinz Schäfers

Matthias Fick

Manfred Winkler

Johannes Enders

Peter Friedrich

Ekrem Akyol

Jan-Rene Aust

Michael Krüger

Steffen Säbsch

Stefan Ruppert

An outer ring for a roller bearing includes a raceway produced from a bearing steel. The outer ring is made of a metal strip wound to form a raceway tube and a cladding tube which is connected thereto and which surrounds the raceway tube on the outer side.

Outer ring and roller bearing comprising said type of outer ring

A running ring () for a sleeve bearing, the running ring substantially including a cylindrical outer casing () or inner casing, the inner circumferential surface () or outer circumferential surface of which is formed as a raceway for bearing rollers, and two rims, which are formed on the axial end faces of the outer casing () or the inner casing and are oriented radially inward () or outward, said rims being provided as an axial guide for the bearing rollers. According to the invention, the running ring () is characterized in that the two rims () have a same wall thickness, and the two rims () are produced by radially flanging over two grooves formed into the edge regions of the inner casing surface or the outer casing surface of a cylindrical starting sleeve, said grooves forming two recesses after the flanging process, wherein the recesses are arranged at a transition between the inner faces of the rims () and the inner circumferential surface () of the outer casing () or the outer circumferential surface of the inner casing and are formed as lubricant reservoirs with a variable volume.

Running ring for a sleeve bearing

A needle sleeve, in particular for pivotably mounting the throttle valve shaft of a control device for recirculating exhaust gas in internal combustion engines. The needle sleeve provides a thin-walled outer ring formed without cutting. A needle roller and cage assembly is inserted in the outer ring. The needle cage carries the bearing needles at uniform spacings in the circumferential direction. The needle sleeve has, at its axial sides, two radially inward facing ribs holding the needle roller and cage assembly in the outer ring and has multiple seals that seal the sleeve to prevent exhaust gas condensates from flowing through. The outer ring of the needle sleeve is a rimless, cylindrical sleeve, and the seals are two lip sealing rings having an S-shaped cross-sectional profile. The seals are located at least partially outside the outer ring and are pressed onto its axial edges, and provide the radially inward facing ribs.

Needle sleeve for pivotably mounting the throttle valve shaft of a control device for recirculating exhaust gas in internal combustion engines

A rolling bearing comprising a rolling bearing cage having a plurality of rolling element pockets arranged in at least one row to receive at least one row of rolling elements, two lateral rings and a plurality of crosspieces connecting the two lateral rings, such that the plurality of rolling element pockets are formed between the plurality of crosspieces, and at least one empty pocket. The rolling bearing cage includes fewer rolling elements in the at least one row than the number of rolling element pockets, such that the at least one empty pocket does not receive a rolling element. A method for producing a rolling bearing cage is also provided.

Rolling bearing

A radial roller bearing comprises a smooth cylindrical outer ring inserted in a housing with a roller race arranged in the outer ring. The roller race is formed by a plurality of roller-shaped rolling elements inserted in a bearing cage, which holds said rolling elements evenly spaced in a circumferential direction. The rolling elements roll off an outer raceway formed by the inner shell surface of the outer ring, and off an inner raceway formed by the outer shell surface of a shaft to be mounted, or formed by a smooth cylindrical inner ring fitted onto the shaft. The axial guidance of the roller race is accomplished by way of two separate flanged rings abutting the axial sides of the outer ring which, together with the outer ring are axially fixed in place by way of safety elements engaging with circumferential grooves in the housing. The safety elements for the flanged rings and the outer ring, and the flanged rings are fixedly connected.

Radial roller bearing

A bearing ring for a radial rolling bearing, in particular for a cylindrical roller bearing or needle bearing which has, on one of the radial surface areas thereof, a track for a set of cylindrical rolling bodies which are cageless or are guided by a cage and one or two guide flanges axially bounding the track of the rolling bodies is/are fastened to the axial end surfaces of said bearing by adhesive bonding. Each guide flange has a rectangular profile cross section with a horizontal fastening limb and a vertical flange limb and, by way of the horizontal fastening limb thereof, is adhesively bonded in an encircling axial groove in an axial end surface of the bearing ring. The width of each axial groove is greater than the material thickness of each fastening limb, and each guide flange can be fixed radially in position in the particular axial groove of a profiling of the fastening limb of said guide flange, the profiling being in contact both with the outer wall and with the inner wall of the associated axial groove.

Bearing ring for a radial rolling bearing, in particular for a cylindrical roller bearing or a needle roller bearing

The invention concerns a rolling element cage () made of a metal strip material that is profiled, stamped, cut to length, and bent into a round shape, wherein the ends of the cut-to-length strip sections are joined together by welding. In order to make it possible to influence the lubricant distribution in the bearing and the vibration characteristics of the cage and thus of the overall bearing system, according to the invention the strip section ends () are joined together with a predetermined axial offset (a) and/or radial offset (b).

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Erlangen, Germany

Heinz Schäfers