Abstract: A charger incorporated in a vehicle wheel supporting rolling bearing unit detects an output voltage of an electric generator and calculates a rotation speed of a hub. When a rotation speed of the hub is in a low speed state where a sensor and a wireless communication device are operated by electric power supplied 5 by a battery, a frequency of wireless communication performed between the wireless communication device and a calculator disposed on a vehicle body side is changed according to the rotation speed of the hub or a traveling speed of a vehicle.

Abstract: A cap for a rotating electric machine, the cap comprising at least a rolling bearing receiving portion (2) for receiving a rolling bearing (R) having an outer race (E), the rolling bearing receiving portion (2) comprising a radially resilient central portion (3) configured to exert pressure on the outer race (E) of the rolling bearing.

Abstract: In accordance with one aspect of the present disclosure, a rolling element bearing assembly is disclosed. The rolling element bearing assembly may be used in an electrically-assisted turbocharger. The bearing assembly includes an inner race having an outer diameter defining an inner raceway, an outer race having an outer diameter and an inner diameter, the outer-race inner diameter defining an outer raceway, a single row of rolling elements between the inner raceway and the outer raceway, and a squeeze-film damper integrated with the outer race to form a single component. The squeeze-film damper provides for a squeeze-film damper surface between the outer-race outer diameter and a housing.

Abstract: A bearing shell for an automotive propulsion system is provided, along with a crankshaft assembly and an engine having a bearing shell. The bearing shell comprises an inner layer having an inner layer thickness. The inner layer defines a bearing surface on an inner side. The bearing surface of the inner layer is configured to support and contact an oil film. The bearing shell also has an outer layer disposed around the inner layer and radially outward of the inner layer. The outer layer has an outer layer thickness that is greater than the inner layer thickness, the outer layer thickness being at least one millimeter. The outer layer is formed of an outer layer material comprising an aluminum alloy and/or a metal matrix composite material. The inner layer is formed of an inner layer material, wherein the outer layer material is stronger than the inner layer material.

Abstract: The present invention provides a foil bearing (10), including: a top foil portion (Tf); and a back foil portion (Bf), which is arranged on a back of the top foil portion (Tf), and is configured to elastically support the top foil portion (Tf), wherein the back foil portion (Bf) includes: an intermediate portion (23) being flat; first projecting portions (21) projecting on a front side of the intermediate portion (23); and second projecting portions (22) projecting on a back side of the intermediate portion (23).

Abstract: A thrust bearing cage including an improved lubrication feature is disclosed. The thrust bearing cage includes a first rim and a second rim with a plurality of crossbars extending therebetween to define rolling element pockets. Each crossbar of the plurality of crossbars includes: a first radial flange extending from the first rim; a second radial flange extending from the second rim; and a medial radial flange connecting the first radial flange and the second radial flange. The medial radial flange is axially offset from the first radial flange and the second radial flange. At least one of the first radial flange, the medial radial flange, or the second radial flange includes a protrusion defining at least one ramped surface. The ramped surface creates a hydrodynamic effect, which guides the thrust bearing cage away from an adjacent surface, and ensures that a lubricated state is maintained.

Abstract: A rolling bearing arrangement is provided for a switching device for switching a manual transmission. The rolling bearing arrangement includes at least one rolling bearing having an outer shell, a cage axially displaceable in the outer shell, and a plurality of rolling elements guided by the cage and radially supported on the outer shell. A rod having a switch axis is supported rotatably and axially displaceably by the rolling elements. The rod has an axial stop for securing the cage in a form-fitting manner with vertically aligned rod in an upper position against a downward axial displacement.

Abstract: Particles (23) are supplied to a bearing gap of a foil bearing. A step (24) is formed in a top foil portion (12a1), to thereby generate an air flow from both end portions (121 and 122) in a direction (N) along a surface of the top foil portion (12a1) and orthogonal to a rotation direction (R) of a shaft (6) toward a region between the both end portions.

Abstract: A receiving arrangement may be utilized by a lower end of a carrier spring on a damper tube of a shock absorber of a suspension strut, in particular for a vehicle. The receiving arrangement may include a bearing unit by way of which the damper tube can twist relative to the carrier spring about a longitudinal axis of the suspension strut. The bearing unit may include an upper bearing ring and a lower bearing ring, which bearing rings may be configured so they can slide on each other to form an axial bearing and a radial bearing between the carrier spring and the damper tube.

Abstract: A sensor arrangement comprising an angle sensor for measuring torsion is disclosed. The angle sensor is designed for carrying out a measurement via n poles, where n?1, and primarily comprises a sensor ring which at least partially surrounds a rotational axis, and a material measure which is rotatable relative to this sensor ring. One transmitting coil and multiple receiver coils are situated on the sensor ring. A magnetic circuit is formed between the transmitting coil and the receiver coils, which magnetic circuit comprises the material measure and a pot core including two limbs. In this case, the material measure forms a variable reluctance in the magnetic circuit. At least one of the two limbs of the pot core is segmented in such a way that the limb comprises ring segments. Each of the receiver coils surrounds at least one of the ring segments. Each of the ring segments forms a circular arc having a mean radius. The ring segments may be provided in pairs.

Abstract: A thrust roller bearing cage having pockets for accommodating rollers includes an inner annular portion and cage bars that extend in a radial manner from a radially outer edge of the inner annular portion so as to separate the pockets from each other in a circumferential direction. The inner annular portion has a first axial end surface and a second axial end surface. The first axial end surface has an oil passage groove for guiding lubricating oil to the pockets. The second axial end surface is recessed relative to the first axial end surface in an axial direction of the inner annular portion so as to form a recessed portion that communicates with the oil passage groove. The entire region of the first axial end surface that is located radially directly inside the cage bars is located radially outside the second axial end surface.

Abstract: A steel ball retainer locking mechanism of a slide rail includes an engaging block, a release hole, a locking hook, a synchronized hook and a releasing hook. The slide rail includes an outer rail, a steel ball retainer and an inner rail, and the engaging block has a synchronized engaging block and a locking block separated with an interval apart from each other, and the synchronized engaging block has a releasing portion and a synchronized hook portion corresponding to the outer rail and the inner rail respectively, and the locking block has a locking portion and a propping portion corresponding to the outer rail and the inner rail respectively. When the inner rail is pulled outward, the engaging block is locked by the locking hook. After the releasing hook pushes the propping portion, the engaging block is unlocked.

Abstract: A speed measuring device for a wheel-hub unit provided with a rolling bearing, the measuring device having an encoder wheel made of magnetized elastic material and assembled on a rotating ring of the bearing; mechanical supporting means that are directly placed between the encoder wheel and the ring so that the encoder wheel and the ring are angularly constrained to each other; and mechanical locking means for axially locking the encoder wheel inside a seat defined by the mechanical locking means together with the mechanical supporting means.

Abstract: Provided is a partially-annular sliding member including a sliding layer including fibrous particles having an average particle size of 5-25 ?m dispersed in a synthetic resin at a volume ratio of 10-35% of the sliding layer. The particles having a major axis length?20 ?m are included at a volume ratio of ?10% to total particles. A sliding surface side area is defined from the sliding surface and has a thickness of 25% of a sliding layer thickness T, where the fibrous particles having a major axis length of ?20 ?m have a dispersion index of 1.1-6. An interface side area is defined from the interface and has a thickness of 25% of T, where the dispersion index is 1.1-6. An intermediate area is defined between the both areas, where the dispersion index is 0.1 to less than 1.

Abstract: A rolling element bearing having a first ring element, a second ring element (3), a plurality of rolling elements arranged in a space between the first and the second ring elements such that the first and the second ring elements can rotate relative each other around a rotational axle. The bearing further includes a sealing ring for sealing off a circumferential opening of the space between the first and the second ring element. The sealing ring is connected to the first ring element and further arranged to rotate relative the second ring element of the rolling element bearing. The sealing ring provides a power generating system that provides at least one pick-up element arranged to generate electrical power when the rolling element bearing rotates. The power generating system is located completely within the circumferential opening of the space.

Abstract: A linear guide bearing and an associated quick-connect system are provided. The linear guide bearing includes a carriage that moves linearly along a guide rail. The carriage includes an upper surface having a groove defined therein, and a depression formed in the groove. A tool is configured to connect to the carriage in a quick-connect fashion. To do so, the tool has a spring-loaded plunger biased downward toward the carriage. As the tool is slid along the groove of the carriage, the tip of the plunger is biased to depress into the depression in the groove. To release the tool from the carriage, a force can be applied sufficient to overcome the spring-bias force to allow the tool to lift off from the carriage.

Abstract: In a squeeze film damper bearing device, a pair of annular projections projecting toward an inner periphery of a bearing retaining member are provided on an outer periphery of opposite end parts in an axial direction of an outer race. When a load in a radial direction acting on a rotating shaft is less than a predetermined value, a state in which an extremity face of the annular projection is not in contact with the inner periphery of the bearing retaining member is maintained. When the load in the radial direction acting on the rotating shaft is the predetermined value or greater, the extremity face of the annular projection is in contact with the inner periphery of the bearing retaining member. The annular projection does not abut against the inner periphery of the bearing retaining member at a time other than when a large load is inputted.

Abstract: Cages for ball bearings are disclosed. In one example, a ball bearing cage includes two side rings interconnected by webs. Rolling element pockets, each of which may have a square basic shape with rounded corners, may be formed in a circumferential direction between the webs. The side rings, together with the webs, may form a guide contour of each rolling element pocket. The pockets may have four convex side contours between the corners thereof, and the side contours may point in a direction opposite to rounded portions in the corners.

Abstract: A hydrodynamic bearing includes an annular inner surface surrounding a rotary shaft to support and guide rotation thereof about the longitudinal rotation axis thereof in an upstream to downstream rotation direction. The inner surface includes an orifice for supplying lubricant and first and second discharge recesses distributed on either side of the supply orifice according to the width of the bearing. The first discharge recess opens into a first side groove and the second discharge recess opens into a second side groove. The first and second side grooves extend along a portion of the circumference of the bearing on lateral sides of the inner surface of the bearing, from the respective first and second discharge recesses towards a third discharge recess located downstream of the two recesses, to direct the lubricant collected by the first and second discharge recesses towards the third recess to be discharged outside the bearing.

Abstract: A charger incorporated in a vehicle wheel supporting rolling bearing unit detects an output voltage of an electric generator and calculates a rotation speed of a hub. When a rotation speed of the hub is in a low speed state where a sensor and a wireless communication device are operated by electric power supplied 5 by a battery, a frequency of wireless communication performed between the wireless communication device and a calculator disposed on a vehicle body side is changed according to the rotation speed of the hub or a traveling speed of a vehicle.