Abstract: A method for heat treating a steel component, which comprises the steps of: (a) carbonitriding the steel component, and (b) austenitically nitrocarburizing the steel component.

Abstract: A guiding and sealing unit for a shock absorber rod, including a bushing and a sealing assembly including a sealing ring made of an elastomeric material and having at least one annular lip that projects radially and axially towards an axis of symmetry (A) of the unit, and an annular shield that supports and is integral with the sealing ring is provided. The annular shield is formed by a metallic sleeve having a first axial end portion that integrally supports the sealing ring, and from which the annular lip extends in a cantilever fashion inside the metallic sleeve, and a second end portion that integrally houses the annular bushing inside itself.

Abstract: A method for producing a case-hardened martensitic stainless steel article includes: providing an article comprised, at least in part, of a martensitic stainless steel, carburizing the article within a temperature range of 1625° F.-1680° F. (885° C.-916° C.), and then carbo-nitriding the article within a temperature range of 1575° F.-1625° F. (857° C.-885° C.). An article, such as a bearing ring, comprising such a case-hardened martensitic stainless steel is also disclosed.

Abstract: A condition monitoring system (CMS) for vehicle bearing units, including at least one condition monitoring unit (CMU) for measuring at least one operating parameter of one bearing unit and a control unit for receiving and processing signals from the CMU. The control unit is configured to activate/deactivate the CMU(s) upon reaching at least one predetermined waypoint stored in a waypoint memory of the control unit. The CMS can be equipped with a waypoint setting unit for setting the at least one waypoint at which the CMU(s) shall be activated/deactivated and to store the waypoint in the waypoint memory. The waypoint setting unit processes route data includes data on at least a curviness of at least one route intended for vehicle travel. The processing includes extracting at least one route section within the curviness of the route within a predetermined range and setting the waypoint(s) within the extracted route section.

Abstract: A hub-bearing assembly having an axis of rotation and provided with a bearing outer ring and a bearing inner ring that define between them an interspace. The outer ring having a shaped groove and the inner ring being provided with a flange that is transverse to the axis of rotation; a sealing device, which is interposed between the outer ring and the inner ring to prevent the entry of impurities into the hub-bearing assembly through the interspace, being provided with a protective cover mounted on the flange to rotate with the inner ring, and extends around the outer ring to close off the interspace from the exterior of the interspace, and has a free terminal edge arranged to snap into the shaped groove to define an annular outlet that is placed inside the shaped groove.

Abstract: A seal arrangement for sealing a radial gap between an inner component and an outer component coaxially mounted around the inner component is provided. The inner component rotates about a rotation axis. The arrangement provides a radial seal connectably mounted to the inner component. The radial seal has a sealing lip that bears against a counterface formed by a radially inner surface of the outer component. When the seal arrangement is stationary, the sealing lip bears against the counterface with an initial lip force. The sealing lip is pivotably arranged in a radial cross section around a pivot point, and is in connection with a counterweight. The sealing lip and the counterweight are arranged in different axial regions from the pivot point and are adapted such that during rotation of the radial seal, a greater centrifugal force acts on the counterweight than on the sealing lip.

Abstract: A wheel bearing unit includes a wheel hub, a first rolling-element bearing, and a fastener assembly, and the fastener assembly is formed separately from the wheel hub and is spaced from an axial end of the wheel hub. The fastener assembly secures at least one component of the rolling-element bearing against falling out of the wheel hub away from a center of mass of the wheel bearing unit, and the fastener assembly contacts the wheel hub.

Abstract: A device for injecting a fluid into a mechanical system that may undergo heating, comprising at least one body containing a thermally triggered charge generating combustion gas, ignition of the charge being able to be triggered under the action of an ignition command and/or under the effect of a heat contribution, from a heating area of the body toward the charge, a reservoir containing the fluid, means for fastening the device to the mechanical system, the fastening means adapted to put the reservoir in fluid communication with the mechanical system, and means for delivering pressurized fluid outside the reservoir through the action, directly or through intermediate means, of the combustion gases. Within the device, the fastening means comprise at least one injection sleeve provided with an outer thread coated with an anti-loosening adhesive film. The invention also relates to a mechanical system equipped with at least one such device.

Abstract: An insulated bearing assembly for coupling a shaft with an outer member includes an inner race disposed upon the shaft and an outer race disposed about the inner race and having an outer circumferential surface and axial ends. An annular insulator is formed of an electrically insulative and thermally conductive material and is coupled with either the outer race or the inner race such that the insulator is generally disposed between the outer race and the outer member or between the inner race and the shaft. A polymeric member has an annular portion(s) disposed against one of the two axial ends of the coupled outer race or inner race and an axial portion(s) extending from the annular portion and coupled with the insulator member so as to retain the insulator member coupled with the outer race or the inner race when the bearing assembly is separate from the outer member.

Abstract: The present invention relates to a continuous caster roll for a continuous casting machine, having; a base portion and an overlay portion made of martensitic stainless steel. The steel of the overlay portion includes 12-14% by weight Cr (chromium), and the steel further includes 0.2-0.5% by weight Nb (niobium) which is a stronger carbide former than Cr, such that Cr will be kept in solid solution in the overlay portion. The balance being Fe (iron), other alloying elements and normally occurring impurities. In addition, a method to manufacture the continuous caster roll is disclosed, wherein the overlay portion is applied by any of weld cladding or laser cladding.

Abstract: A roller tappet includes a housing, and the housing includes a first housing element and a second housing element. The first housing element has a receiving region configured to receive a roller of the roller tappet, and the second housing element is separate from the first housing element and is forged. The first housing element may be formed from metal sheet.

Abstract: A cage for a roller bearing is provided. The cage has a ring-shaped base body with a plurality of pockets for receiving rolling elements. The base body is formed by two side rings arranged in a defined axial distance and by a plurality of pocket elements, which are located between the side rings. Each pocket element has two face sides designed for contacting a rolling element. The connection between the pocket element and each of the side rings is established by at least one beam joined with one of the side rings and the pocket element. The beam is a positive substance joined with one of the side rings and the pocket element and has a ring-shaped or elliptical cross section in a section perpendicular to the longitudinal extension of the beam.

Abstract: A fastener element for transmitting a load to a machine part. One of the fastener's longitudinal extension axial ends is fixed with the machine part. The load acts onto the fastener at the other longitudinal extension axial end in a load area. The fastener comprises a plurality of longitudinally extending base parts, including the load area. The base parts are connected to each other by corrugations. To reduce shear in the fastener, a height of the corrugations is substantially constant along a first extension in a fastener longitudinal direction, extending from the machine part to a transition region. The load area is arranged along a second extension in the fastener longitudinal direction adjoining the first extension. Along the second extension, the corrugations height is reduced from the transition region, becoming zero at a final section of the fastener in the axial end region remote from the machine part.

Abstract: A bearing assembly including a bearing having a first ring with a hole, two front edges and an outer cylindrical surface, and a second ring with a hole, two radial edges and an outer cylindrical surface is provided. The first and second rings rotate relatively about a central axis. The bearing includes at least one row of rolling elements housed in a chamber formed between an outer cylindrical surface and a hole of the rings, the first and second rings and the rolling elements determining a pitch diameter of the bearing. A sealing means is provided having an engagement portion rigidly connected to one of the rings and a tapered annular body extending from the engagement portion towards the other ring. When idle, the body forms a non-zero angle with a plane perpendicular to the pitch diameter and is in direct or indirect contact with the other bearing ring.

Abstract: A bearing providing at least two rings able to pivot relative to one another, at least one of the rings including at least two annular ring parts having annular radial surfaces axially opposite each other. The bearing further providing at least one annular shim disposed between the radial surfaces of the annular ring parts and including successive circumferential portions. Each circumferential portion of the shim has a plurality of nicks respectively traversed by axial elements. The nicks of each circumferential portion of the annular shim are shaped and oriented to permit the positioning between the annular ring parts and the removal of each circumferential portion by radial translation.

Abstract: A double-row spherical roller bearing comprising an outer ring which presents a first and a second spherical raceway on a radially inner peripheral surface, an inner ring which presents a first and a second outer curved-shaped raceway. Moreover, roller elements are arranged in a first and second roller row being axially displaced from each other, and arranged in-between the respective first and second inner raceways of the outer ring and the first and second outer raceways of the inner ring. The outer ring includes a first groove on the radially inner peripheral surface located in-between the first and second inner raceways, extending radially outwardly and in the circumferential direction of the ring. The first and second inner raceways have hard turned surfaces. The first groove presents a hardened surface which has not undergone any post-hardening machining operation. The double-row spherical roller bearing can be a wind turbine bearing arrangement.

Abstract: A sensor device for monitoring a component of interest, including at least one sensor for measuring at least one parameter indicative of condition of the component of interest, signal processing device for processing the signals of the sensor, a housing for at least the signal processing device and a mounting feature for mounting the sensor device close to the component of interest. The mounting feature can include a bolt and bracket having a first portion including an opening for inserting the bolt in an insertion direction and a second portion with a surface parallel to the insertion direction configured to mount the housing.

Abstract: A roller screw mechanism comprising a screw having an outer thread, a nut disposed around and coaxially with the screw. The nut includes an inner thread. A plurality of rollers are disposed radially between the screw and the nut and are each provided with an outer thread engaged with the outer and inner threads of the screw and of the nut and with two outer gear teeth. The mechanism additionally comprises two synchronizing gear teeth that are formed on the nut and are each engaged with one of the gear teeth of the rollers. The root diameter of each gear teeth is less than the inside diameter of the inner thread of the nut.

Abstract: A device adapted to measure the wear of a ball-and-socket joint. The ball-and-socket joint comprising a first ring, which delimits a spherical housing, a second spherical ring, which is positioned concentrically in the housing of the first ring, and a lining, which is made from an elastically insulating material and is inserted between the second ring and the spherical housing of the first ring. A wear measuring feature includes at least two electrodes provided to be connected to the first ring and the second ring, respectively, or to the lining, so as to form a capacitor structure and a capacitance measuring device for measuring the capacity of the capacitor thus formed. The device further comprises an electronic circuit, which is a resonant circuit including the capacitor, an inductance and a resistance positioned in series.

Abstract: A bearing providing at least an inner ring and an outer ring adapted to concentrically rotate with respect to one another, equipped with at least one embedded device for the detection of a displacement in translation of the rings relative to each other, the detection device including a linear encoder element mounted on one of the rings, and a sensor element mounted on the other ring and opposite the encoder element.