Abstract: A method and system for determining core losses in a permanent magnet synchronous motor, comprising a measurement of the losses of the motor with the motor not connected to a load, and a deduction of the core losses of the motor from the losses of the motor. The motor is placed in an over-fluxing state during the measurement of the losses.

Abstract: A mechanical system forms a cam follower or a rocker arm. The mechanical system comprises: a support element, a pin extending between two opposite ends along a first axis and supported by the support element, and a roller adapted to receive the pin. The roller being mounted on pin, movable in rotation relative to the pin around the first axis and adapted to roll on a cam. The support element comprises two separate parts, generally semi-cylindrical, each having a contact face, in contact with one other, and a holding feature for maintaining parts assembled together.

Abstract: A universal joint includes a joint cross having a plurality of bearing journals, each bearing journal being supported in a bearing bushing by a plurality of trunnion bearing rolling elements, the universal joint also including a seal assembly configured to seal the journal cross against the bearing bushing. The bearing bushing includes a sleeve for slidingly supporting at least one seal lip of the seal assembly, the sleeve has an axially inner region facing the rolling elements, and the axially inner region has a radially inner portion and a radially outer portion. The radially inner portion is axially offset from the radially outer portion towards the rolling elements by an offset amount.

Abstract: A bearing assembly is for supporting a pivotable member and includes a laminated bearing having a generally cylindrical body with a centerline and a central bore for receiving at least a portion of the pivotable member. The body is formed of a plurality of alternating, generally tubular elastomeric and metallic laminae nested coaxially about the central axis, each one of the elastomeric and metallic laminae having opposing axial ends. At least one and preferably two thermally conductive members are coupled with a separate one of the two axial ends of one of the metallic laminae and each extends generally axially from the bearing body so as to provide a heat sink.

Abstract: A bearing unit for pinions, in which a pinion is rotatably supported through the bearing unit from the bearing unit itself. The pinion is mounted projecting from the bearing unit. The bearing unit is provided with a single outer ring with two raceways, an inner ring defined by a spacer and by two half-rings disposed on opposite sides of the spacer axially aligned with each other and each having a respective raceway. Two rows of balls are arranged inside of the raceways, where the diameters both of the rows of balls, and the balls themselves are different from each other depending on the proximity or otherwise of the row to the head of the pinion.

Abstract: A suspension bearing device, comprising: a bearing, a lower cup and an upper cup centered on a central axis. The lower cup having a body including a tubular axial portion and an annular outward radial portion. The lower cup is provided with a damper pad including: an inner portion disposed against the annular outward radial portion of the body; an outer portion for bearing a suspension spring; and an annular recess for receiving a creep of material of the damper pad when the outer portion is constrained by the suspension spring. The suspension bearing device can be integrated into a motor vehicle. A method for manufacturing such a suspension bearing device.

Abstract: A roller screw mechanism comprises a screw having an outer thread and a nut disposed around and coaxially with the screw. The nut comprises an inner thread. A plurality of rollers are disposed radially between the screw and the nut; each roller being 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 also comprises two synchronizing gear teeth that are each engaged with one of the gear teeth of the rollers. An outside diameter of each gear teeth of each roller is less than a diameter of a root of the thread of the roller. Each tooth of the gear teeth of the rollers comprises planar faces that engage with the synchronizing gear teeth.

Abstract: A mechanical system, forming a cam follower or a rocker arm, and comprising a support element, a pin extending between two opposite ends along a first axis and supported by the support element, and a roller movable in rotation relative to the pin around the first axis and adapted to roll on a cam. The support element includes at least a first part and a second separate part which, when fitted together, together delimit a lubricating groove on an external surface of the support element.

Abstract: A universal joint including a joint cross having a bearing journal supported in a trunnion bearing having a bearing bushing and a seal assembly including a one-piece seal body sealing the journal cross against the bearing bushing, the seal body having a first lip configured to form a dynamic seal on the bearing bushing or on a U-shaped sleeve connected to the bearing bushing, a second lip configured to form a dynamic seal on the bearing bushing or on the sleeve, a first arm of the sleeve being press-fit in a cylindrical receiving surface of the bearing bushing, or the sleeve having a section that is rounded or doubly corrugated in radial section, or wherein between the seal body and rolling elements of the trunnion bearing a separate ring part is disposed and pressed towards the rolling elements by at least one elastic element projecting from the seal body.

Abstract: A load structure for testing a loadability of a large bearing includes a housing, a force-transmitting structure configured to generate a force or a moment relative to the housing and to transmit the force or the moment to a bearing ring of the large bearing, and a force-receiving element connected to the housing and configured to contact a counter ring of the large bearing. The housing is configured to support the counter ring indirectly via the force-receiving element such that the transmitted force or moment is transmitted to the housing at least partially via the counter ring and the force-receiving element, and a material of the force-receiving element has a higher degree of hardness than a material of the housing. Also a method of load testing a bearing.

Abstract: An RFID tag reading system affixed to a machine bearing housing is provided. The reading system includes a mobile data collector having an RFID reader for reading a unique identity of the RFID tag, an magnet electro-mechanically connected to the mobile data collector and a magnet mounting pad fixed to the machine housing. The magnet mounting pad having a ferromagnetic contact body for housing the magnet mounting pad and an RFID antenna disposed within the RFID tag for transmitting a unique identity of the RFID tag. The RFID tag is disposed within the ferromagnetic contact body. The magnet is magnetically connected to the magnet mounting pad. The mobile data collector automatically reads the unique RFID tag identity transmitted from the antenna of the RFID tag when the combination mobile data collector and magnet are placed onto the RFID mounting pad.

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 plug assembly for use in a rolling bearing comprising at least a first ring, at least one second ring, and at least one row of rolling elements arranged between the rings. The first ring is provided with an opening for inserting rolling elements into a space between raceways or for taking rolling elements out of the space between the raceways for assembly and maintenance. The plug assembly comprises a plug configured to close the opening when the bearing is operating. The plug includes an inner end face facing the rolling elements and an outer end face opposite to the inner end face. The bearing can further comprise a protective cap shielding the outer end face of the plug from a corrosive environment of the bearing.

Abstract: A bearing ring for a rolling-element bearing includes a mounting surface having a first length and a running surface, configured to support a rolling element, that has a second length. The running surface has first and second axially spaced end portions, and at least one of the first and second axially spaced end portions comprises a cantilever. Also, a rolling element, such as a tapered rolling element, having cantilevered end portions.

Abstract: A mechanical system forming one of a cam follower or a rocker arm, the mechanical system comprising: a support element, a pin extending between two opposite ends along a first axis and supported by the support element, and a roller mounted on pin, movable in rotation relative to the pin around the first axis and adapted to roll on a cam. The support element includes a bearing body adapted to receive pin, and an additional retaining member blocking the translation of pin back and forth, along first axis.

Abstract: A machine condition monitoring system comprising a machine condition monitoring analysis device operating on a combination of one of an Operating System (OS) or a Real Time Operating System (RTOS) and an embedded web based server. The analysis device includes a communication circuit for communicating with an independent web-enabled computing device having non-RTOS operating system. The independent computing device provides web requests to the analysis device. The analysis device interprets the web requests as instruction sets and processes the requests accordingly. The analysis device obtains machine condition data from one or more deployed sensors. The analysis device returns processed data in a form of one or more web pages. The communication network can integrate an intermediary communication device, wherein the intermediary communication device introduces a capability of translating Highway Addressable Remote Transducer (HART) transmissions into other communication protocols, such as Wi-Fi.

Abstract: A bearing unit for a vehicle wheel having a radially outer stationary ring provided with an axial lug, with a flange transverse to an axis of rotation and with an annular channel formed between the axial lug and the flange and delimited axially by a bottom surface. A radially inner rotatable ring defining, together with the stationary ring, a space; an encoder fixed onto the inner ring and extending outside of the space and in front of the axial lug; a protective cover mounted on the axial lug to protect the encoder and close off the space and provided with a side wall mounted on the outer cylindrical surface and having a bent edge arranged axially in abutment against the bottom surface of the annular channel; sealing means disposed between the cylindrical side wall and the tubular axial lug to seal the cylindrical side wall on the outer cylindrical surface.

Abstract: A system comprising at least one component for an application in which the at least one component is subjected to Hertzian stress or alternating Hertzian stress or altering Hertzian stress in combination with structural stress, and at least one sensor that is arranged in situ to monitor atomic hydrogen permeation through at least part of the at least one component.

Abstract: A bearing assembly includes at least one outer ring and an inner ring unit including first and second inner rings, the inner ring unit having a central, axial bore extending through the first and second inner rings, and a plurality of attachment bores for attaching the bearing assembly to a bearing carrier. A first plurality of roller bodies is disposed between the at least one outer ring and the first inner ring and a second plurality of roller bodies is disposed between the at least one outer ring and the second inner ring. A pin extends through the central axial bore of the first inner ring and through the central axial bore of the second inner ring, and the pin maintains a predetermined preload on the bearing assembly by holding the first inner ring in a fixed position relative to the second inner ring.

Abstract: A bearing unit for a fluid machinery application having a double-row bearing, the double-row bearing comprising: a first angular self-aligning contact bearing arranged next to a second angular self-aligning contact bearing for locating and rotatably support a shaft; each angular self-aligning contact bearing having a respective set of rolling elements formed of rollers arranged in a row and interposed between an associated curved inner raceway and a curved outer raceway. Each roller is a symmetrical cylindrically shaped roller having a curved raceway-contacting surface engaging with the curved inner and outer raceways. Each roller is inclined in relation to the axial direction of the shaft by a respective first or second contact angle. The rollers are arranged to cooperate with the associated curved inner and raceways for supporting an axial force and a radial force. Examples of fluid machinery applications include: wind turbine, water turbine or propulsion turbine arrangements.