Abstract: A lifting column includes a component having an internal thread, as well as a hollow shaft having an external thread, which is in engagement with the internal thread of the component. A threaded spindle is disposed inside the hollow shaft and has an external thread, which is in engagement with an internal thread of the hollow shaft. Furthermore, the lifting column includes a drive device configured to rotate the hollow shaft relative to the threaded spindle and the component. When the hollow shaft rotates, the component and the hollow shaft move in the same axial direction so that the height of the lifting column is changeable.

Abstract: A sensory head for sensing the temperature and vibration emitted from a machine housing having an RFID tag disposed thereon is provided. The sensory head includes a body for housing the sensory head and at least one digital input/output power contact. The sensory head further provides a combination power and control circuit for powering and for controlling function of the sensory head, the combination power and control circuit electrically connected to the at least one contact and an infrared temperature sensor for measuring the sensed temperature of the machine housing, the infrared temperature sensor in electrical communication with the combination power and control circuit. Finally, the sensory head provides an RFID antenna for reading and identifying the RFID tag attached to the machine housing, the RFID antenna electrically connected with the with the combination power and control circuit and at least one magnet.

Abstract: A bearing assembly is for a washing machine, the washing machine having a tub and a drum rotatable about an axis, the bearing assembly includes first and second bearings spaced apart along the drum axis and a spacer disposed at least partially between the two bearings. A housing is connectable with the drum, configured to contain the bearings and the spacer, and includes an annular rim extending axially away from first bearing and generally coaxially about the drum axis, the rim defining a seat for a sealing element. Preferably, the housing is formed of a polymeric material and is molded to the tub.

Abstract: A bearing assembly includes first and second rolling-element bearings each having an inner ring that is connectable to a shaft for rotation therewith, each inner ring having a running surface (raceway) for rolling elements and an intermediate ring disposed axially between the inner ring of the first rolling-element bearing and the inner ring of the second rolling-element bearing. The intermediate ring has a maximum outer diameter smaller than a maximum diameter of the running surface of the inner ring of the first rolling-element bearing and smaller than a maximum diameter of the running surface of the inner ring of the second rolling-element bearing. The intermediate ring has an axial dimension that is smaller than a radial dimension of a cross-section of the intermediate ring, and that is smaller than 0.5 mm.

Abstract: Pulley device for a rotary machine, and in particular a compressor, comprising a pulley, a rolling bearing, a torque transmission plate having an axial sleeve designed to be mounted on a rotary spindle of the rotary machine and a radial plate extending radially from the axial sleeve and having the general shape of a disc, said pulley being mounted on an outer ring of the rolling bearing and on the torque transmission plate, the torque transmission plate being able to transmit a rotational movement from the pulley to the rotary spindle. Said pulley device comprises a damping element located between the pulley and the torque transmission plate.

Abstract: A thrust disc for a magnetic bearing, wherein the thrust disc comprises: a body, which is adapted to be mounted on a shaft and which has a first offset yield strength and a first magnetic permeability, and at least one flange which is fixed to the body in a position where it can interact with a thrust stator in order to form a magnetic bearing and which has a second offset yield strength and a second magnetic permeability; wherein the first offset yield strength is higher than the second offset yield strength; and wherein the first magnetic permeability is smaller than the second magnetic permeability. Additionally, the magnetic bearing can be equipped with such a thrust disc. An apparatus can be equipped with such a magnetic bearing.

Abstract: A condition monitoring device that collects data indicative of a condition of a machine. The condition monitoring device includes a main controller; a condition monitoring sensor system (which includes at least one condition sensor); a signal processor provided in signal communication between the sensor system and the main controller; and an HTTP web server, an Internet accessible communication circuit, and, a digital storage device, each in signal communication with the main controller. Condition data is stored in a web page compatible format, including HyperText Markup Language (HTML) formatted data, JavaScript formatted data, JSON, XML, Cascading Style Sheets (CSS) formatted data, image files, and any other API supporting format.

Abstract: A mechanical bearing having an outer ring and an inner ring, centred on a same bearing axis, the outer ring being arranged radially around the inner ring, and a cage, arranged coaxially between the inner ring and the outer ring and housing cylindrical rollers, with this cage being formed by several disjointed tubular portion which, in the assembled state of the bearing, are separated from each other by a non-zero gap. The cage is formed by at least three disjointed tubular portions that do not cooperate mechanically with each other in assembled state of the bearing.

Abstract: A digital nonlinear corrector of an active magnetic bearing receiving an input signal x(t) and outputting an output control signal u(t) for controlling the position of said active magnetic bearing, the input signal being digitalized by a ADC circuit and provided to an adder, the digital nonlinear corrector comprising a closed control loop delivering an intermediary sequence of numbers y[kT] and having a direct branch comprising a first proportional gain circuit and a feedback branch comprising a series connection of a low-pass filter and a dead zone circuit, such that said low-pass filter is activated when determined upper and lower values of said output control signal are reached, the output control signal reproducing the input signal when these determined upper and lower values are not reached.

Abstract: A permanent magnet rotor assembly comprises a cylindrically shaped shaft having an outer surface, a plurality of permanent magnets constituting portions of annular segments and an outer retaining cylindrical sleeve surrounding the plurality of permanent magnets. The assembly further comprises a cylindrical magnet housing mounted on the cylindrically shaped shaft for supporting the plurality of permanent magnets. The cylindrical magnet housing is formed of a magnetic material. The retaining cylindrical sleeve is preloaded by a resultant interference fit IF2 which is defined by the following formula: IF2=?ØY+?{square root over (((ØY+IF1)?2+ØY?2?ØX?2))}. where ØY is an external diameter of the plurality of permanent magnets, ØX is an internal diameter of the cylindrical magnet housing, and IF1 is a primary interference fit between an external diameter of the cylindrically shaped shaft and the internal diameter of the cylindrical magnet housing.

Abstract: A cage segment for a rolling-element bearing has at least one pocket for a rolling element and is formed by a first segment part and a second segment part. The second segment part abuts the first segment part in an axial direction and is connected to the first segment part by an interference-fit or a friction-fit, or in a materially-bonded manner.

Abstract: A part-bearing-ring of a rolling-element bearing includes first and second assembly bores on its end surface, and the second assembly bore has a larger diameter than the first assembly bore so that it can accommodate a securing sleeve. The second assembly bore may include an internal thread for attaching the securing sleeve. Also a bearing ring formed of two part-bearing-rings and a securing sleeve and a method of installing a bearing ring.

Abstract: A rolling bearing cage provides a circumferential spacing of a row of rolling elements and comprises first pockets configured to accommodate first rolling elements of the row of rolling elements. The first pockets are provided with axial retention portions configured to retain the rolling bearing cage on the first rolling elements. Second pockets are configured to accommodate second rolling elements of the row of rolling elements and not provided with axial retention portions configured to retain the cage on the second rolling elements. Separation portions are provided which between the separation portions delimit the first and second pockets. Each of the separation portions delimiting one of the first pockets comprises a notch open in an axial direction and open in opposing radial directions.

Abstract: A hub-bearing assembly for agricultural use having a rolling bearing, a housing, a closing cap and an axial retention feature. The roller bearing includes an outer ring, at least one inner ring, at least a row of rolling bodies and a sealing device. The housing includes an almost annular cylindrical shape, the housing at one end forming a radial flange, containing the rolling bearing and being in direct contact with the bearing outer ring. The closing cap is assembled on the housing at the opposite end with respect to the end, where the housing forms the flange. It is noted that the cap is cup shaped. The axial retention feature is located along an external surface of the outer ring. The retention feature is located opposed to the axial sliding of the outer ring with respect to the housing.

Abstract: A fluid seal of the present invention is disposed between an outer surface, i.e. engine block or any other part that requires application of the assembly and a rotatable member, such as, for example a shaft, wherein the seal circumscribes the shaft and lubricated the shaft and the same rotates around the axis. The seal present a cross section with plurality of channels that allow maximum expose of the seal to a salt bath thereby improving curing process and physical characteristics of the seal. A method of forming such fluid seal is disclosed in the present application.

Abstract: This disconnectable pulley device comprises a central member, a pulley mounted around the central member, a free wheel itself comprising several cams mounted between a first slippage path, made on an external radial surface of the central member or of an element secured to this member, and a second slippage path made on an internal radial surface of the pulley or of an element secured to the pulley, the free wheel ensuring a unidirectional clutch between the pulley and the central member. At least one slippage path, from among the first and second slippage path, and/or a portion of the cams intended to interact with one of the slippage paths comprises a tungsten disulfide layer.

Abstract: A sealing assembly including at least one first annular shield having a sleeve portion integral in use with a rotating member and a flange portion, which radially and overhangingly extends from the sleeve portion. Preferably, a second annular shield is arranged in front of the first shield with the interposition of an annular seal; wherein the sleeve portion of the first shield is delimited by a conic-truncated lateral mounting surface having a tapering facing so as to have a greater diameter arranged on the side of the flange portion and intended to couple in use with a mounting seat of the rotating member formed by a shallow recess delimited by a conic-truncated bottom wall having the same tapering as the lateral mounting surface and by an axial shoulder which is arranged on the side opposite to the flange portion.

Abstract: A backing device, adapted to equip an axlebox comprising a bearing unit and supporting an axle. The backing device comprises: (a) an inner ring having an inner surface and at least one outer surface; (b) at least one outer ring having an inner surface facing the outer surface of the inner ring; and (c) a tightening component inserted inside at least one of the inner ring and the outer ring. When actuated, the tightening component presses the inner surface of the outer ring and the outer surface of the inner ring against each other and narrow the inner surface of the inner ring by elastic deformation thereof. The axlebox can be integrated into a vehicle. Mounting and dismounting methods are described herein.

Abstract: A cage blank for a free wheel with rolling bodies is formed by an elongated strip defining housings for receiving rolling bodies juxtaposed in a rectilinear longitudinal direction of the blank. It is provided, at both of its ends, with means for attaching the two ends together, in a configuration where the cage forms a closed loop. A cage is formed by bending the blank on itself, perpendicular to its longitudinal direction, and engaging its attaching means.

Abstract: The cage blank for a free wheel with at least one of rolling bodies and cams wherein the cage blank has two parts and comprises a main part defining cells for receiving the at least one of rolling bodies and cams. The cage blank includes a cover for closing the cells. Before the cover is assembled on the main part, each cell has, at an axial end, along a longitudinal axis of the main part, an opening for placing a rolling body or a cam.