Abstract: A monitoring system is proposed. The monitoring system comprises a rolling bearing comprising a first ring and a second ring (7, 8) capable of rotating concentrically relative to one another, and at least one row of rolling elements (5) interposed between a first raceway and a second raceway respectively provided on the first and second rings, wherein: at least one of the rolling elements (5) of the rolling bearing is a sensorized rolling element comprises at least one sensor measuring at least one parameter of the sensorized rolling element and a wireless transmitter to transmit the measurements of the sensor, and wherein the system comprises: a receiving device (21) configured to receive the measurements of the sensor of the sensorized rolling element of the rolling bearing, and a processing device (23) configured to process the measurements received by the receiving device to detect damage and/or a contamination of the rolling bearing (2).

Abstract: A cage segment for a rolling-element bearing having a plurality of rolling elements includes at least one bridge and first and second plates extending from axial ends of the bridge, sides of the bridge being configured to guide rolling elements. Radially inner or outer edges of each of the bridges include at least one axial channel having channel walls projecting radially and circumferentially from the radial inner or outer edge.

Abstract: A method of determining the center of loading of a rolling element includes providing a rolling element body and at least three load sensors. The sensors are each positioned within a bore of the rolling element body at a separate distance from a reference position. Load measurements are taken with each one of the sensors at various positions about the circumference of the bearing and the center of loading is calculated at each one of the positions to determine the variation in axial loading about the bearing circumference.

Abstract: Disclosed is a sensor roller for monitoring a lubrication condition of a roller bearing, the sensor roller providing a measuring unit for measuring at least a temperature, a speed change and a load of the roller, and a processing unit for generating a temperature profile, a speed change profile and a load profile of the roller based on the measured temperature and speed change.

Abstract: A process for determining the reliability of a sensorized bearing configured to measure load and speed is provided. The process includes the following steps. Bearing load and rotational speed are determined from data acquired from the sensorized bearing. Next, an array linking the determined load to the determined n.dm value is filled until that all available loads are parsed. Then a L10 life is determined for each load within a distribution based on the array. Finally, an overall L10 life is determined based on the Palmgren-Minor rule. The load distribution and the L10 lives a bearing reliability R for a given date is determined based on a Weibull curve and the overall L10 life.

Abstract: A method for assembling a tapered roller bearing includes providing a first rolled-on surface element having a raceway and an axial end surface and mounting a plurality of tapered rollers separated by a plurality of bearing cage segments or by a plurality of roller spacers on the raceway, where each of the plurality of tapered rollers has a frustoconical rolling surface and a circular end surface meeting at a junction. Also placing at least one assembly ring around the plurality of tapered rollers to hold the plurality of tapered rollers against the first rolled-on surface element, and moving a second rolled-on surface element coaxially toward the first rolled-on surface element such that a portion of the second rolled-on surface element contacts the at least one assembly ring and pushes the at least one assembly ring axially off the plurality of tapered rollers.

Abstract: An assembly tool for a bearing ring having roller members, the tool including a ring configured to be arranged on a side face of the bearing ring and including sliding elements received in receiving members on the ring. The sliding elements are distributed peripherally in a uniform manner around the ring and are configured to be displaced from a starting position into an end position relative to the ring. When the tool is mounted on the ring, the sliding elements, positioned in their end positions, extend between adjacent roller members and limit a radial movability of the roller members relative to the bearing ring.

Abstract: A method for assembling a tapered roller bearing includes providing a first rolled-on surface element having a raceway and an axial end surface and mounting a plurality of tapered rollers separated by a plurality of bearing cage segments or by a plurality of roller spacers on the raceway, where each of the plurality of tapered rollers has a frustoconical rolling surface and a circular end surface meeting at a junction. Also placing at least one assembly ring around the plurality of tapered rollers to hold the plurality of tapered rollers against the first rolled-on surface element, and moving a second rolled-on surface element coaxially toward the first rolled-on surface element such that a portion of the second rolled-on surface element contacts the at least one assembly ring and pushes the at least one assembly ring axially off the plurality of tapered rollers.

Abstract: A cage segment for a rolling-element bearing having a plurality of rolling elements includes at least one bridge and first and second plates extending from axial ends of the bridge, sides of the bridge being configured to guide rolling elements. Radially inner or outer edges of each of the bridges include at least one axial channel having channel walls projecting radially and circumferentially from the radial inner or outer edge.

Abstract: An installation tool for a bearing ring including rolling elements includes a ring that is configured to be disposed on a lateral surface of the bearing ring and slider elements extending through receptacles in the ring. The slider elements are uniformly distributed circumferentially around the ring and are displaceable relative to the ring from an initial position into an end position and are configured to be disposed in the end position between two rolling elements and against a contact surface of a wall of a cage segment, which wall is disposed between two rolling elements, in order to limit axial and radial movement of the rolling elements relative to the bearing ring.

Abstract: An installation tool for a bearing ring including rolling elements includes a ring that is configured to be disposed on a lateral surface of the bearing ring and slider elements extending through receptacles in the ring. The slider elements are uniformly distributed circumferentially around the ring and are displaceable relative to the ring from an initial position into an end position and are configured to be disposed in the end position between two rolling elements and against a contact surface of a wall of a cage segment, which wall is disposed between two rolling elements, in order to limit axial and radial movement of the rolling elements relative to the bearing ring.

Abstract: An assembly tool for a bearing ring having roller members, the tool including a ring configured to be arranged on a side face of the bearing ring and including sliding elements received in receiving members on the ring. The sliding elements are distributed peripherally in a uniform manner around the ring and are configured to be displaced from a starting position into an end position relative to the ring. When the tool is mounted on the ring, the sliding elements, positioned in their end positions, extend between adjacent roller members and limit a radial movability of the roller members relative to the bearing ring.

Abstract: A tensioner for preloading a bearing, the bearing including inner and outer bearing rings. The tensioner including a component having a housing and a carrier element that extends radially inwardly from the housing, the outer bearing ring having an outer surface that forms an axially extending radial surface and having a first axial end formed by a radially extending axial surface and directly abutting the carrier element, a support element for supporting the component relative to the inner bearing ring such that a closed force flow arises from the outer bearing ring via the component and the support element, and a sleeve positioned radially between the outer surface of the first bearing ring and the housing such that an inner surface of the sleeve abuts the outer surface of the outer bearing ring and an outer surface of the sleeve abuts a conical surface of the housing.

Abstract: A tensioner for preloading a bearing, the bearing including inner and outer bearing rings. The tensioner including a component having a housing and a carrier element that extends radially inwardly from the housing, the outer bearing ring having an outer surface that forms an axially extending radial surface and having a first axial end formed by a radially extending axial surface and directly abutting the carrier element, a support element for supporting the component relative to the inner bearing ring such that a closed force flow arises from the outer bearing ring via the component and the support element, and a sleeve positioned radially between the outer surface of the first bearing ring and the housing such that an inner surface of the sleeve abuts the outer surface of the outer bearing ring and an outer surface of the sleeve abuts a conical surface of the housing.

Abstract: A tensioner for preloading a bearing, the bearing including a first bearing ring and a second bearing ring and being configured to transmit a preload force in a radial direction and/or in an axial direction between the first bearing ring and the second bearing ring, the tensioner including a component coupled to the first bearing ring, a support element for supporting the component relative to the second bearing ring such that a closed force flow arises from the first bearing ring via the component and the support element to the second bearing ring, and a sleeve disposed in an axially displaceable manner between the first bearing ring and the component, the sleeve being configured to change the preload force in response to an axial displacement of the sleeve with respect to the component.

Abstract: A tensioner for preloading a bearing, the bearing including a first bearing ring and a second bearing ring and being configured to transmit a preload force in a radial direction and/or in an axial direction between the first bearing ring and the second bearing ring, the tensioner including a component coupled to the first bearing ring, a support element for supporting the component relative to the second bearing ring such that a closed force flow arises from the first bearing ring via the component and the support element to the second bearing ring, and a sleeve disposed in an axially displaceable manner between the first bearing ring and the component, the sleeve being configured to change the preload force in response to an axial displacement of the sleeve with respect to the component.

Abstract: A method and system for automatically associating coronary arteries with regions of the myocardium to which the arteries supply blood is described. The method uses three dimensional image data of a patient, and an axial image slice is used to identify candidate locations of the aorta. Candidate aorta centroid locations are evaluated to eliminate spurious identifications, and the identified aorta is used to locate the left ventricle of the heart with respect thereto. Arteries of the coronary artery tree may be located by segmentation of contrasted images, and the individual arteries may be identified by skeletonization of the segmented arteries. The skeletonized arteries are projected onto an image of the patient heart, and may be associated with specific regions of the myocardium.

Abstract: A method and an apparatus are disclosed for visualizing tubular anatomical structures, in particular vessel structures, in medical 3D image records.

Abstract: A method is disclosed for visualizing tubular anatomical structures, in particular vessel structures, in medical 3D image records. In at least one embodiment, the method includes the following: firstly, providing 3D image data of the tubular anatomical structure; secondly, displaying a first image of the tubular anatomical structure on the basis of the 3D image data; thirdly, selecting an image voxel which is assigned to the tubular structure in the 3D image data on the basis of the first image; fourthly, determining a centerline of the tubular anatomical structure in a prescribably delimited region of the 3D image data comprising the image voxel; fifthly, selecting a point of the centerline; sixthly, generating one or more 2D slice images assigned to the point, the 2D slice images in each case representing a sectional plane in the 3D image data; and seventhly, displaying the 2D slice images.

Abstract: A method and an apparatus are disclosed for visualizing tubular anatomical structures, in particular vessel structures, in medical 3D image records.