Schaeffler Technologies Ag & Co .kg

Jan-Rene Aust

Heinz Schäfers

Matthias Fick

Ekrem Akyol

Edgar Schedl

A radial rolling element bearing () formed of a cylindrical outer ring () that is inserted into a housing (), and a rolling element cage () arranged in said outer ring and formed by a plurality of roller-shaped rolling bodies () which are inserted into a bearing cage () and held thereby, equidistantly, in a circumferential direction, and roll on an outer raceway () formed by the inner lateral surface () of the outer ring, and on an inner raceway () formed by the outer lateral surface () of a shaft () to be mounted or a smooth cylindrical inner ring pushed onto said shaft. The roller race is axially guided by two separate flanged disks () which lie against the axial sides () of the outer ring and are axially secured, together with the outer ring, by securing elements which engage in recesses () in the housing. According to the invention, this radial rolling element bearing is characterized in that said flanged disks include a right-angled profiled cross-section that has a horizontal securing leg () and a vertical flanged leg () and, by pressing their horizontal securing legs onto two peripheral stepped shoulders () in the edge regions of the outer lateral surface () of the outer ring, are secured thereto; and in that the securing elements which engage in recesses in the housing for the purpose of axially securing said rolling element bearing are designed as spring elements () integrated into the securing legs of the flanged disks.

Radial rolling element 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.

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Erlangen, Germany

Jan-Rene Aust