Patents by Inventor Andreas-Johann Bohr
Andreas-Johann Bohr has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9523388Abstract: A two-part bearing cage for a ball bearing, including a first and a second annular body (1a, 1b) having a plurality of retaining claws (2) on their opposing end faces. The two annular bodies (1a, 1b) have an identical design and can be mounted opposite each other in such a way that cut-out sections (3) receive the retaining claws (2), thereby forming pockets (4) for receiving and guiding rolling bodies (5). The number of pockets (4) corresponds to the number of rolling bodies (5). According to the invention, the individual pockets (4) are arranged at a distance from one another in the circumferential direction in such a way that a free area (6) for receiving lubricant is formed between two pockets (4). At least two pairs of retaining claws (2), at least two individual retaining claws (2), and the base of a pocket combine to form one pocket (4). The invention also relates to a ball bearing comprising a two-part bearing cage of this type.Type: GrantFiled: November 7, 2013Date of Patent: December 20, 2016Assignee: Schaeffler Technologies AG & Co. KGInventors: Markus Scheidel, Reinhard Rehner, Thomas Fickert-Guenther, Andreas-Johann Bohr, Frank Zwanzger
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Patent number: 9261141Abstract: A ball bearing cage having a first ring element and a second ring element is provided. The ring elements are each formed from sheet metal, and each include axial bulges separated by support surfaces. Ball guide pockets are formed between facing bulging inner walls by joining the support surfaces of the two ring elements. The ring elements are formed in such a way that the bulging inner walls that define the ball guide pockets define a channel cross-section which is concave in relation to a ball and which has an inner and an outer ball contact zone. The channel cross-section has such a depth in a groove base lying between said inner and outer ball contact zones that, when the ball comes into contact with the ball contact zones, an intermediate space remains between the ball and the groove base lying between the ball contact zones.Type: GrantFiled: December 12, 2012Date of Patent: February 16, 2016Assignee: Schaeffler Technologies AG & Co. KGInventors: Alexander Reimchen, Andreas-Johann Bohr, Stephan Herbst
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Publication number: 20150377289Abstract: A two-part bearing cage for a ball bearing, including a first and a second annular body (1a, 1b) having a plurality of retaining claws (2) on their opposing end faces. The two annular bodies (1a, 1b) have an identical design and can be mounted opposite each other in such a way that cut-out sections (3) receive the retaining claws (2), thereby forming pockets (4) for receiving and guiding rolling bodies (5). The number of pockets (4) corresponds to the number of rolling bodies (5). According to the invention, the individual pockets (4) are arranged at a distance from one another in the circumferential direction in such a way that a free area (6) for receiving lubricant is formed between two pockets (4). At least two pairs of retaining claws (2), at least two individual retaining claws (2), and the base of a pocket combine to form one pocket (4). The invention also relates to a ball bearing comprising a two-part bearing cage of this type.Type: ApplicationFiled: November 7, 2013Publication date: December 31, 2015Applicant: SCHAFFLER TECHNOLOGIES AG & CO. KGInventors: Markus Scheidel, Reinhard Rehner, Thomas Fickert-Guenther, Andreas-Johann Bohr, Frank Zwanzger
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Publication number: 20150247533Abstract: A sealing element (1) for a rolling bearing, including a central sealing ring (5) having a support ring (3), wherein on the sealing ring (7) a first resilient sealing rib (9) for forming a dynamic seal relative to an inner bearing ring section and a second resilient sealing rib for forming a static seal relative to an outer bearing ring section are formed is provided. The first resilient sealing rib and the second resilient sealing rib extend directly away from the sealing ring. A rolling bearing having a corresponding seal is also provided.Type: ApplicationFiled: September 20, 2013Publication date: September 3, 2015Inventors: Thomas Fickert-Guenther, Andreas-Johann Bohr
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Publication number: 20140321787Abstract: A ball bearing cage having a first ring element (R1) which is designed as a formed sheet metal part and which has axial bulges arranged sequentially in a circumferential direction and separated by support surfaces (S2), having a second ring element (R2) which is also designed as a formed sheet metal part and which also has axial bulges arranged sequentially in a circumferential direction and separated by support surfaces (S2), and having ball guide pockets (P2) which are formed between facing bulging inner walls (W1, W2) by joining the support surfaces (S2) of the two ring elements (R1, R2), and each of which accommodates a ball (3).Type: ApplicationFiled: December 12, 2012Publication date: October 30, 2014Applicant: SCHAEFFLER TECHNOLOGIES GMBH & CO. KGInventors: Alexander Reimchen, Andreas-Johann Bohr, Stephan Herbst
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Patent number: 8596873Abstract: A roller bearing which has an outer and inner ring and ball rollers arranged between the rings, which roll in two groove-shaped tracks in the outer and inner rings and are held at a uniform distance to one another by a window cage that has two lateral ribs bent around two circumferential flanged edges to the inner ring and interconnected by pocket bridges. The cage pockets of the cage ribs have a hole formed from a cross-sectional contour of a ball roller arranged longitudinally to the circumferential direction and from a free contour incorporated therein and arranged perpendicular to the circumferential direction. The free contour in each cage pocket is expanded to a rectangle and the flange edges of the ribs each have reduced material thickness compared to the other material thickness of the cage by a circumferential, line-shaped burnishing.Type: GrantFiled: August 19, 2010Date of Patent: December 3, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Heinrich Hofmann, Andreas-Johann Bohr, Ernst Geiger, Otmar Weber
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Patent number: 8480307Abstract: A ball roller bearing which has an outer and inner bearing ring and ball rollers arranged between the rings, which roll in groove-shaped tracks in the rings and are held at a uniform distance to one another by a window cage. The cage has two lateral angle ribs, pocket bridges, which connect the ribs and cage pockets separated by the pocket bridges. The pockets have a cross-shaped hole formed from a contour perpendicular to the circumferential direction and a cross-sectional contour of a ball roller arranged longitudinally to the circumferential direction. The side edges are formed from the pocket bridges, which have radii of arch-shaped guide surfaces corresponding to the running surfaces of two ball rollers. The pocket bridges have additional material profiling between the side edges and on the guide surfaces for axial stiffening of the cage and damping bearing noise.Type: GrantFiled: August 19, 2010Date of Patent: July 9, 2013Assignee: Schaeffler Technologies AG & Co. KGInventors: Heinrich Hofmann, Andreas-Johann Bohr, Ernst Geiger, Otmar Weber
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Publication number: 20120177317Abstract: A ball roller bearing which has an outer and inner bearing ring and ball rollers arranged between the rings, which roll in two groove-shaped tracks in the rings and are held at a uniform distance to one another by a window cage. The cage has two lateral angle ribs, pocket bridges, which connect the ribs and cage pockets separated by the pocket bridges. The pockets have a cross-shaped hole formed from a contour perpendicular to the circumferential direction and a cross-sectional contour of a ball roller arranged longitudinally to the circumferential direction. The side edges are formed from the pocket bridges, which have radii of arch-shaped guide surfaces corresponding to the running surfaces of two ball rollers. The pocket bridges have additional material profiling between the side edges and on the guide surfaces for axial stiffening of the cage and damping bearing noise.Type: ApplicationFiled: August 19, 2010Publication date: July 12, 2012Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Heinrich Hofmann, Andreas-Johann Bohr, Ernst Geiger, Otmar Weber
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Publication number: 20120170885Abstract: A roller bearing which has an outer and inner ring and ball rollers arranged between the rings, which roll in two groove-shaped tracks in the outer and inner rings and are held at a uniform distance to one another by a window cage that has two lateral ribs bent around two circumferential flanged edges to the inner ring and interconnected by pocket bridges. The cage pockets of the cage ribs have a hole formed from a cross-sectional contour of a ball roller arranged longitudinally to the circumferential direction and from a free contour incorporated therein and arranged perpendicular to the circumferential direction. The free contour in each cage pocket is expanded to a rectangle and the flange edges of the ribs each have reduced material thickness compared to the other material thickness of the cage by a circumferential, line-shaped burnishing.Type: ApplicationFiled: August 19, 2010Publication date: July 5, 2012Applicant: SCHAEFFLER TECHNOLOGIES AG & CO. KGInventors: Heinrich Hofmann, Andreas-Johann Bohr, Ernst Geiger, Otmar Weber