Abstract: The present invention related to a method, and an apparatus arrangement, for determining a fatigue limit for rolling contact initiated fatigue of a rolling bearing. The method comprises running a rolling bearing while being exerted to a load which generates sub-surface transformations in a rolling element contact zone of the outer or inner ring. Furthermore a set of sub-surface transformations in the contact zone along a raceway portion of the rolling bearing is identified and measured and used for generation of a parameter data set, wherein a fatigue parameter value representative of a predicted fatigue limit for the rolling bearing is determined based on the generated data set of sub-surface transformations.

Abstract: An arrangement including a first and second sealing assembly disposed between an inner ring and an outer ring of the wheel hub and straddling the wheel hub and an outer ring of a constant velocity joint, and an annular step formed on the side of the constant velocity joint on a radially outer lateral surface of the inner ring, in a position adjacent to a sleeve portion of a first shield of the first sealing assembly from a flange portion radially extends so as to protrude towards the outer ring, the flange portion being provided towards the constant velocity joint with a signal generating element (19) consisting of an annular insert; an end of a tubular core of the second sealing assembly is fitted angularly onto the step and is radially externally provided with an L-shaped edge arranged within the step and radially under the annular insert.

Abstract: A seal assembly of the present invention is used for sealing a space between a housing and a rotary shaft disposed at least partially within the housing. The seal assembly includes a generally annular sealing member having a central portion and two axially-spaced apart side portions each extending generally radially from the central portion to define a generally annular groove. The assembly includes a generally annular support member disposed within the sealing member groove and configured to retain the central portion disposed generally against the other one of the shaft and the housing. The assembly eliminates problems associated with prior art designs such as static leakage of oil, clogging up the spirals with carbonized oil that negatively impact lifecycle of the fluid seals.

Abstract: A rolling bearing with rolling bodies includes an outer ring, an inner ring and rolling bodies arranged in a rolling chamber. The rolling bearing includes at least one flange mounted on a first ring and extending to a second ring and fastened onto the first ring and a first annular band at right angles to an axis of rotation of the rings and offset, along the axis, relative to the fastened portion. The flange provides a second annular band and a third annular band arranged respectively radially inside and radially outside the first band and offset axially in the direction of the rolling bodies, using a first setback and a second setback. An edge of the flange, opposite to the portion fastened onto the first ring, is folded back towards the rolling chamber and extends in a direction parallel to a radial surface of the second ring.

Abstract: A rolling bearing assembly device comprising an outer race, an inner race, a row of rolling elements arranged between the outer and inner races, a sleeve mounted in the bore of the inner race, and an elastic preload element capable of applying an axial preload transmitted to the inner race. The elastic preload element is mounted in direct contact with an annular axial centering portion and bearing axially over its entire periphery against a radial bearing flange extending radially from the axial centering portion towards the outside of the device.

Abstract: An electromagnetic actuator (100) comprises magnets (109, 111, 113, 115, 11), and a ferromagnetic structure (103) accommodating control conductors (118, 121, 123, 125). The magnets and the structure can move with respect to one another under control of control currents in the control conductors. The magnetic field in a gap (107) between the magnets and the ferromagnetic structure is oriented perpendicular to the direction of relative movement. The structure (103) accommodates damping conductors (127) that form closed loops of an electrically conductive material, different from the ferromagnetic material. The damping conductors (127) provide a damping force induced by the relative movement.

Abstract: A chain or belt tensioning roller or winder device having a rolling bearing, the rolling bearing comprising an inner ring, an outer ring and at least one row of rolling elements mounted between the rings. The pulley is overmolded onto the outer ring and with a fixing screw axially immobilized with respect to the rolling bearing. The device comprises a sleeve overmolded inside the bore of the inner ring and provided with a through-bore for mounting the fixing screw. The sleeve is provided with means of axially retaining the fixing screw inside the through-bore of the sleeve.

Abstract: A rolling-element bearing includes a first bearing ring, a second bearing ring, and a seal unit formed in a multiple-piece manner, the seal unit including an at least part-ring shaped main element which is freely rotatable with respect to the first bearing ring and the second bearing ring and at least one seal lip. In addition, the main element and the seal lip are exchangeably connectable to each other.

Abstract: The cam follower roller device including a body, a shaft mounted on the body, a roller mounted on the shaft in a rotationally movable manner, and at least one friction element mounted on the shaft axially between the roller and the body. The friction element is separate from the body and from the roller.

Abstract: A mechanical device, comprising: a bearing including a fixed ring and a pivoting ring centered on a central axis and including an interface defined therebetween; and an interface lubrication system. An acceleration field pushes the stream of lubricant from a bearing first zone to a bearing second zone, each defining an angular sector around the central axis. The lubrication system comprises a set of peripheral channels passing through the fixed ring and including first channels positioned in the first zone and defining a first intake flow rate for bringing lubricant to the interface and second channels positioned in the second zone and defining a second intake flow rate bringing lubricant to the interface. The first flow rate is higher than the second flow rate. The interface receives a larger quantity of lubricant in the first zone than in the second zone. The mechanical device can be integrated into a machine.

Abstract: A rotor sensor target for magnetic bearings, the rotor sensor target comprising a ring-shaped assembly of magnetic material mounted on a generally ring-shaped assembly of non-magnetic material. The magnetic and non-magnetic ring shaped assemblies are coaxially arranged and mounted on a shaft having a longitudinal axis of rotation X?-X. The generally ring-shaped assembly of non-magnetic material comprises at least one ring-shaped slit having the longitudinal axis X?-X and may be made of a cheaper material, such as aluminum. The ring-shaped slit provides flexibility which permits operation over a wide range of temperatures without risking of damaging the ring-shaped assembly of magnetic material.

Abstract: A method of collecting vibration and temperature data with a mobile data collector electro-mechanically connected to a sensory head is proposed. The data collected from a surface of a machine housing having an RFID tag mounted thereon. The method includes the steps of providing the sensory head electrically connected to the mobile data collector and mechanically connected to the machine housing surface, the sensory head including an infrared sensor, an RFID antenna, and at least one magnetic coupling. The sensory head attached to the machine housing surface via the magnetic coupling to enable transmission of machinery vibration through to the mobile data collector. The RFID antenna is positioned proximate the RFID tag and the infrared temperature sensor proximate the machine housing surface. A unique machine asset identifier is read into the mobile data collector via the sensory head RFID antenna and then uploaded into the mobile data collector.

Abstract: An anti-rotation device prevents relative rotation between first and second members, one member being telescopingly disposed about the other and at least one member being linearly displaceable along a central axis. First and second guide surfaces are provided on the first member and extend generally parallel with each other and the central axis. First and second rollers are connected with the second member and are each rotatable about an adjustably fixed axis on the second member. The first roller is rollable along the first guide surface to prevent angular displacement between the two members when the displaceable member moves in a first direction and the second roller is rollable along the second guide surface to prevent angular displacement between the two members when the displaceable member moves in an opposing direction. The contact between the rollers and guide surfaces provide a radial degree of freedom to the anti-rotation device.

Abstract: A rolling-element bearing including a seal unit, the rolling-element bearing having at least one bearing ring and a further bearing ring tiltable with respect to the at least one bearing ring by a limited angle, and the seal unit having an at least part-ring shaped element attached to the bearing ring. The at least part-ring shaped element delimits a labyrinthine seal gap and corresponds to a first delimiting element, the rolling-element bearing further includes a second delimiting element and a third delimiting element, the third delimiting element being attached to a bearing cage, and the seal gap extends at least partially between the first delimiting element, the second delimiting element and the third delimiting element.

Abstract: A seal unit for a rolling-element bearing having an inner bearing ring and an outer bearing ring. The seal unit includes an at least part-ring shaped element having a seal lip, the at least part-ring shaped element is configured for attachment to the inner bearing ring, and the outer bearing ring is tiltable through a limited angle with respect to the inner bearing ring. Also a rolling-element bearing having such a seal unit.

Abstract: A method for manufacturing a rolling-element bearing cage includes clamping a cage blank in the radial direction using a clamping element in a first position where the cage blank is processed. Then, the cage blank is rotated relative to the clamping element to a second position where the cage blank is further processed. A device for manufacturing a rolling-element bearing cage includes the clamping element, which remain stationary together with a tool for processing the cage blank, while only the cage blank is rotated.

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 torque transmission mechanism, for a starter for an internal combustion engine, is adapted to transmit a starting torque from a starter motor to a crankshaft. The torque transmission mechanism comprises a ring gear that transmits the starting torque and a one-way clutch disposed between the ring gear and the crankshaft, this ring gear comprising a gear side portion to which the starting torque is transmitted from the starter motor via gear mesh, and a flange extending between the gear side portion and an inner ring of the one-way clutch. The flange comprises an inner section which forms the inner ring of the one-way clutch and an outer section fixed to the inner section and on which the gear side portion is fixed. The inner and outer sections of the flange are fixed together by a mechanical assembly other than welding.

Abstract: A housing for a bevel gear includes a pinion bearing seat configured to support a pinion bearing for a driveshaft having a drive pinion. The housing also includes an attachment structure configured to attach a support bearing seat to the housing such that the position of the support bearing seat with respect to the pinion bearing seat is variable in the radial direction.

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.