Abstract: A device for attachment to a motor vehicle wheel includes an arrangement which, during movement or driving of the motor vehicle, detects vibrations which occur, evaluates the vibrations for an incipient fault state of a wheel bearing of the vehicle wheel, and delivers a signal when the monitoring or evaluation yields or indicates the incipient fault state.

Abstract: To obtain an improved possibility of establishing the causes of failure in linear drive devices with an electric drive, operational data logging means shall be provided for logging data in connection with operational loads and/or an operating state of the electric drive, which occur over a certain period of time, wherein the operational data logging means can be connected to the power connection means for data logging. Means for storing data, which are based on a plurality of measurements of the same measured variable, which measurements are performed one after another, make it possible to log and evaluate data over a long period of time, preferably during the entire service life of the linear drive device. The measurements are carried out during the use of the linear drive device (14) during which it is in a loaded state.

Abstract: A system is provided that furnishes expert procedural guidance based upon patient-specific data gained from surgical instruments incorporating sensors on the instrument's working surface, one or more reference sensors placed about the patient, sensors implanted before, during or after the procedure, the patient's personal medical history, and patient status monitoring equipment. Embodiments include a system having a surgical instrument with a sensor for generating a signal indicative of a property of a subject tissue of the patient, which signal is converted into a current dataset and stored. A processor compares the current dataset with other previously stored datasets, and uses the comparison to assess a physical condition of the subject tissue and/or to guide a procedure being performed on the tissue.

Abstract: A wind power plant comprises an outside ring, an inside ring and roll bodies arranged between an inside jacket of the outside ring and an outside jacket of the inside ring for permitting twisting or rotation of the bearing rings against one another. One of the rings on the jacket comprises an auxiliary sensor at least along a portion of the periphery. The auxiliary sensor together with the primary sensor provided in the other bearing ring are configured in such a way that a twisting or rotational position of the two bearing rings relative to one another can be detected.

Abstract: A bearing and shaft assembly comprises a shaft and at least one bearing, and is provided with at least one strain sensor. An elastic component is provided between the shaft and the at least one bearing, and the elastic component comprises the at least one strain sensor. In one disclosed embodiment, the elastic component forms an integral part with one of the bearing and the shaft.

Abstract: A method for lubricating a rolling element bearing by an ultra low viscosity volatile fluid comprises injecting a liquefied fluid flow into the bearing, lubricating rolling contacts between the rings and the rolling elements of the bearing by the liquefied fluid, providing a flow restriction for the liquefied fluid so as to maintain at least part of the fluid at a pressure which is above the evaporation pressure which is defined by evaporation of the fluid at the temperature or temperatures which prevail(s) in the bearing.

Abstract: The invention relates to a wheel bearing for a driven wheel provided with a roller bearing module, comprising an outer ring and a hub which can be slide onto the outer ring from at least from one side such that it encompasses a partial area of the outer covering of the outer ring, wherein at least one area of the outer covering of the outer ring and one area of an inner covering of the hub are embodied in the form of a conical covering so that they match each other and can be arranged adjacent to each other.

Abstract: A device for protecting the bearing of an electrical machine against the damaging passage of current, wherein the electrical machine comprises a stator and a rotor pivotally mounted relative to the stator by the bearing. The device is provided with a compensation circuit which produces a compensation current which compensates for a parasitic current formed during operation of the electrical machine by the bearing and a coupling element for directly or indirectly coupling the compensation current into the bearing.

Abstract: Method and sensor arrangement for determining a contact force vector acting on a rolling element hearing in operation. Sensor signals are received from a plurality of sensors measuring performance characteristics of the rolling element bearing. The received sensor signals are processed to determine the contact force vector. The plurality of sensors are arranged to measure a bearing component deformation, and the step of processing comprises the step of determining the contact force vector using an inverse transformation of a finite element analysis model which describes the rolling element bearing. The finite element analysis model is simplified using at least one generalized mode shape, the at least one generalized mode shape being a mathematical description of a natural mode deformation of a component of the rolling element bearing, such as the inner or outer ring.

Abstract: A bearing arrangement for a medical device in which a rotating component is supported relative to a stationary housing includes a bearing with an inner ring and an outer ring. The inner ring is connected to the component which is to be supported and the outer ring is connected to the housing by way of at least one damping element. To increase quiet running of the rotating component, both the inner ring and also the outer ring are made as integral elements and have an essentially hollow cylindrical base contour, with an extension of the outer ring in the radial direction being at least twice the extension of the inner ring in the radial direction.

Abstract: A method for treating a component comprising a metallic or ceramic material with a crystalline, semi-crystalline or amorphous structure. According to the method, to caseharden the component, at least part of the surface of the component is exposed to an oil jet, while the temperature of the oil and/or the component is regulated. Also disclosed is a device for carrying out the method.

Abstract: A bearing arrangement used in a medical device in which a rotating component is supported relative to a stationary housing includes a bearing comprising an inner ring and an outer ring, with the inner ring being connected to the component which is to be supported and the outer ring being connected to the housing. To increase quiet running of the rotating component, the connection between the inner ring and the component to be supported and/or between the outer ring and the housing is produced by an annular element which is made of plastic.

Abstract: A module for a fuel cell arrangement having several stacked plates. At least two of the plates have a common seal element of polymer material which is injected onto the plates and by which the plates are at least partially joined to one another. The plates can be provided with openings into which the seal element extends. The plates can be configured so that a cavity is defined between the plates, with the openings communicating with the cavity. The seal element can also have different cross-sectional configurations.

Abstract: In an oil separator for separating oil from a fluid flow with a labyrinth-like flow guide which is formed essentially by baffle walls, at least one of the baffle walls in at least one partial area can be deformed in a manner similar to rubber.

Abstract: A method for the heat treatment of workpieces made of steel or cast iron involves quenching the workpiece to a temperature above the martensite starting temperature (i.e., the temperature below which martensite is formed) after a holding period at or above the austenitizing temperature. In the ensuing time period, austenite is transformed into bainite. The temperature of the workpiece is reduced during the time period when transformation occurs and the transformation of austenite into bainite is thus continued.

Abstract: A method for treating the surface of a machine element, such as the raceway and/or a rolling element of a rolling element bearing, comprising the steps of—subjecting the surface to a hard turning operation so as to obtain a specific roughness profile having a series of alternating ridges and grooves, —after the hard turning operation subjecting the surface to a ball calendering operation so as to flatten the ridges of the roughness profile whereby a ?q value smaller than 5° is obtained.

Abstract: Method and sensor arrangement for determining a load vector acting on a rolling element bearing (1) in operation. A plurality of N sensors (8) are provided which measure displacement and/or strain for determining displacement and/or strain in one of the elements (5, 6, 7) of the rolling element bearing (1). Furthermore, a mode shape coefficients calculator (11) is provided, connected to the plurality of N sensors (8), for determining a deformation of the element (5, 6, 7) by calculating amplitude and phase of N/2 Fourier terms representing at least one radial mode shape of the ring shape element (5, 6, 7). Also, a bearing neural network (12) is present, connected to the mode shape coefficients calculator (11), the bearing neural network (12) being trained to provide the load vector on the rolling element bearing (1) from the N/2 Fourier terms.

Abstract: An antifriction bearing for pivoting support of a journal includes a bush, roll bodies which roll in the bush, a gasket, and a disk spring which the roll bodies axially contact and which is axially supported on the gasket. The axial distance between the disk spring and the roll bodies decreases radially to the outside at least in areas.

Abstract: The invention concerns a pedal assembly bearing or hub bearing for a bicycle. The inventive assembly comprises two antifriction bearings mutually spaced apart and capable of being arranged in a housing of a pedal assembly bearing or wheel bearing of the bicycle. Each antifriction bearing comprises an inner ring having a raceway for the rolling elements, as well as an outer ring having a raceway for the rolling elements, the rolling elements being placed between their respective raceways of the inner ring or of the outer ring. To achieve a high bearing surface while providing for low production costs. Therefore, the inner ring and the outer ring of the two bearings are both produced as compact elements, the outer ring having a tubular shape. An antifriction bearing is produced as roller bearing while the other antifriction bearing is produced as cylindrical roller bearing.

Abstract: An arrangement for sealing a housing with a cover that includes a central hole for holding a gasket for a shaft extending through the gasket in the installed state, and at least first and second hollow-cylindrical protuberances which project roughly in the direction of the shaft relative to the areas of the cover which directly surrounds them. The protuberances are inserted into the corresponding cavities of the housing. The peripheral surfaces of the first protuberance and its respective cavity adjoin one another essentially without play, and the second protuberance can be essentially freely positioned within its cavity in the direction of a line which connects the two center points of the two protuberances, with the second protuberance adjoining at least one point of the peripheral surface of the cavity in the direction of the cavity diameter which is perpendicular to the line.