Abstract: A mechanical system, comprising a support element, a pin extending along a first axis and comprising two opposite ends, each adapted to be fitted in the support element for radial retention of the pin relative to the first axis, and a roller element movable in rotation relative to the pin around the first axis. The mechanical system includes two ribs resting on either side of the ends for axial retention of the pin along the first axis. The mechanical system can be integrated into either an injection pump or a valve actuator.

Abstract: A roller screw mechanism comprising a screw, provided with an outer thread, a nut positioned around and coaxially to the screw, the nut being provided with an inner thread, and a plurality of rollers inserted between the screw and the nut, each comprising an outer thread engaged with the outer thread of the screw and with the inner thread of the nut. Each of the threads of the screw, rollers and nut comprise first and second axially opposite flanks, respectively forming a first and second angle with a plane perpendicular to the central axis of the screw, the first and second flanks of each thread of the rollers respectively being in contact with the first and second flanks of the nut's thread and with the first and second flanks of the screw's thread. The value of the first angle is different from the value of the second angle.

Abstract: A bearing steel composition contains 0.1 to 0.2 wt % C, 3.25 to 4.25 wt % Cr, 9.5 to 11.5 wt % Mo, 5.75 to 6.75 wt % W, 1.5 to 2.5 wt % V, and 2.5 to 3.5 wt % Ni. A bearing component, such as a rolling element, an inner race or outer race, is formed from the bearing steel composition, for example, by a powder metallurgical technique and then is subjected to a case hardening treatment. The bearing component may have a microstructure composed of martensite, retained austenite and at least one of carbides and/or carbonitrides. The carbon level at the surface of the bearing component may be 0.5 to 1.1 wt %.

Abstract: A system for monitoring a machine includes first and second mobile units. The first mobile unit includes an emitter, a clock in communication with the emitter, and a sensor in communication with the clock. The second mobile unit includes a detector, a clock in communication with the detector, and a sensor in communication with the clock. The detector of the second mobile unit is configured to detect a signal from the emitter of the first mobile unit, and the clocks in the first and second mobile units are configured to be synchronized in response to the detection of the signal.

Abstract: A rolling-element bearing with line contact includes bearing inner and outer parts having running surfaces, and at least one rolling element is disposed between and makes line contact with the bearing inner and outer parts. A width of the outer running surface and/or a width of the inner running surface is narrower at least in a first circumferential partial region than a length of the rolling-element, and in the first partial region the bearing outer part running surface and/or the bearing inner part running surface extends obliquely to a rolling direction of the at least one rolling element.

Abstract: The invention relates to a method for manufacturing a composite part intended for being subjected, via at least one attachment point, to pulling and/or compression forces. The method includes: winding fibers on a hub so as to form a portion of the wall of the part, and creating an externally convex rounded area at the location intended to form the area for applying the pulling and/or compression forces. The forces are radial thereto. The method also includes placing an insert on the convex rounded area, the insert including the attachment point or a mechanism for rigidly connecting the attachment point, and continuing to wind fibers so as to form the rest of the wall, while covering a portion of the insert and leaving the attachment point or the mechanism for rigidly connecting the attachment point accessible.

Abstract: An electrical device comprising a housing having cooling fins located in a central portion along an exterior surface of the housing and a laminated magnetic stack disposed within the housing and interfacing with an interior surface of the housing at the central portion. The cooling fins are configured alternatively higher and smaller on an inlet manifold and in opposition on an outlet manifold.

Abstract: A method for producing an annular-shaped cage for a rolling bearing assembly. The method comprises steps of: (a) providing a workpiece contained in a plane having a first side and a second side; (b) forming an annular-shaped cage from the workpiece, the annular-shaped cage having a U-shaped cross section such that portions of the first side of the workpiece face each other; and (c) forming a plurality of windows in the workpiece for receiving and positioning a set of rolling elements.

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: The cam follower roller device comprises a body, a shaft mounted on the body, and a roller mounted on the said shaft in a rotationally movable manner and comprising two end faces. Each of the said faces is arranged at least in part axially facing an inner wall of the body. At least one of the end faces of the roller and/or at least one of the said inner walls of the body comprise an antifriction and wear-resistant coating.

Abstract: An instrumented rolling bearing, comprising an outer ring and an inner ring having a rolling bearing chamber delimited therebetween. Rolling bodies are positioned in the rolling bearing chamber while being maintained by a rolling bearing cage. The rolling bearing further comprises a measuring device including at least one sensor suitable for measuring at least one operating parameter of the instrumented rolling bearing, the measuring device being at least partially integrated into the rolling bearing chamber bearing cage. The measuring device further comprises at least one cable or antenna that extends along the rolling bearing cage in the rolling bearing chamber. A method for manufacturing one such instrumented rolling bearing is also disclosed.

Abstract: An assembly includes a rotating shaft supported with respect to a stationary housing by at least one active magnetic bearing presenting a mean radial air gap and at least one auxiliary bearing having first and second coaxially arranged annular surfaces is provided. One of the first and second coaxially arranged annular surfaces defines a clearance (E2) with one of the stationary housing and the rotating shaft, the clearance (E2) being less than the mean radial air gap and the other of the first and second coaxially arranged annular surfaces being integral with the other one of the stationary housing and the rotating shaft. The auxiliary bearing provides a first ball bearing and a second ball bearing having a misalignment with respect to each other in order to increase the starting torque.

Abstract: A self adjusting instrumented rolling bearing having an outer ring and an inner ring delimiting a rolling chamber and at least one row of rolling elements disposed therein, and a detection device including a sensor integral with the outer ring and a target integral with the inner ring, configured to detect a relative rotation between the outer ring and the inner ring around a central axis. The outer ring has an inner surface in the form of a spherical portion centered about a tilting center of the bearing and forming a rolling surface for the rolling elements. The radius of the inner surface of the outer ring is greater than a distance defined between the tilting center of the bearing and a specific position of the target that is the farthest from the tilting center.

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 mechanical system that forms one of a cam follower or a rocker arm. The mechanical system comprises a support element including a first body portion and a second body portion, a pin extending between two opposite ends along a first axis and supported by the first body portion of 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 mechanical system further comprises a spacing element comprising a first body portion connected to the second body part of the support element and a second body portion adapted to be supported by a movable support.

Abstract: Method for determining the contact angle (?) of a rolling element bearing (10) comprising an inner ring (12), an outer ring (14) and a plurality, P, of rolling elements (16) interposed between the inner ring (12) and the outer ring (14). The method comprises the step of determining the relative speed of P?1 or fewer of said plurality, P, of rolling elements (16) with respect to the inner ring (12) and/or the outer ring (14) and determining the contact angle (?) of said rolling element bearing (10) therefrom.

Abstract: A valve operator assembly is adapted for use with a valve. The assembly comprises a housing, an input member rotatably mounted with respect to the housing and comprising a rotational drive input, and a transmission mechanism connected to the input member and comprising a stem, the transmission mechanism being adapted to convert applied rotation of the rotational drive input into axial translation of the stem. The assembly further comprises at least one elastic actuator axially located between the input member and the stem to obtain a compression of the actuator during an axial translation of the stem towards the input member and a release of the actuator during an axial translation in the opposite direction.

Abstract: A machine arrangement, including at least one bearing ring, wherein a glass fiber is connected with the machine arrangement. To allow a proper measurement of stresses, even at curved surfaces of the machine arrangement as it is typical in the case of bearing rings, the connection between the glass fiber and the machine arrangement is established by a glass material. The glass material is connected by material bonding with the machine arrangement as well as with the glass fiber.

Abstract: A fin stabilizer for stabilizing a watercraft against rolling movements includes a main fin configured to be pivoted by a watercraft-side fin drive, a tail fin, and an elastically deformable connection between the main fin and the tail fin, the elastically deformable connection being configured to flex whenever a water force acting on the tail fin is greater than a predetermined amount.

Abstract: A sensor for sensing an angular position of a rotatable element with respect to a non-rotatable element, the sensor comprising an encoder fast in rotation with the rotatable element, and a sensor body fixed respective to the non-rotatable element. The sensor body includes at least one sensing element adapted to sense angular position or rotation speed and direction of the encoder, a signal processor support member, and a sensing data output connector comprising at least one electrical wire connected to the support member. The sensor comprises a tubular body (accommodating the connector), including a first half-shell integral with the sensor body and a second half-shell assembled with the first half-shell around the connector. A tubular body internal surface comprises at least one radial ridge adapted to block a translation of the output connector along a longitudinal axis of the tubular body by penetrating into a sheath of the connector.