Schaeffler Technologies Ag & Co .kg

Christopher Mitchell

Heiko Schmidt

Peter Solfrank

Michael Pausch

Christian Schaefer

Kurt Kirsten

Christian Schäfer

Gabriele Laugisch

A rolling bearing () for an exhaust gas turbocharger, including an outer race () and an inner race (), between which there roll rolling bodies () guided by a cage (). The cage () is then guided with a cage guiding surface () on a raceway () of the outer race () and is equipped with openings () which connect the cage guiding surface () with that side of the cage () oriented toward the inner race (), in order to guide lubricant thrown off through the inner race () between the cage guiding surface () and the raceway (). In order to now improve a lubricant supply to the cage guide, the cage () is provided, on the side oriented toward the inner race (), with at least one groove () into which each of the openings () opens.

Rolling bearing for an exhaust gas turbocharger, and cage for a rolling bearing

A bearing unit for a turbocharger, including a bearing housing extending in an axial direction and also including a bearing cartridge arranged within the bearing housing, wherein between the outer circumference of the bearing cartridge and the bearing housing there is formed an intermediate space with an oil film, and wherein the bearing housing has a supply bore formed for the supply of oil to the oil film. The bearing cartridge includes a rolling bearing, the outer cartridge ring of which is mounted in a freely rotatable manner in the oil film. A bearing unit for a turbocharger, the bearing cartridge of which includes a rolling bearing, the bearing outer ring of which is mounted in a freely rotatable manner in the oil film. By means of bearing units of such design, it is possible to ensure the secure mounting of a shaft even without a separate twist prevention device.

Bearing unit for a turbocharger

A rolling bearing for a turbocharger, which has an outer ring with a first rolling element raceway, an inner ring with a second rolling element raceway, and several rolling elements accommodated in rolling element pockets of a rolling element cage. The rolling element cage has a guide surface, which is guided on an inner surface of the outer ring and arranged on a smaller radius than the radius of the first rolling element raceway. The rolling element cage has an extension, which is arranged over the circumference of the rolling element cage and extended annularly in the radial direction, on the side opposite the guide surface.

Rolling bearing having a cage to prevent flooding with lubricant

An antifriction bearing for a turbocharger, which has an outer ring with an annular inner face and an inner ring with an outer face which is parallel to the inner face, and a rolling body cage with a single annular part arranged radially between the outer and inner ring with one cage guiding face which is parallel to the inner face of the outer ring and an inner surface which is parallel to the outer face of the inner ring, and with closed rolling body pockets which are distributed over the circumference and rolling bodies received in the pockets. To provide hydraulic damping and reduced friction, the annular part is provided in the region of the cage guiding face with at least one radial recess outside the rolling body pockets, which can be formed by apertures, cutouts or grooves in the cage guiding face.

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St. Austell, United Kingdom

Christopher Mitchell