Abstract: System comprising an epicyclic arrangement. In some embodiments, the epicyclic arrangement can comprise: a first input element; a second input element fixed to an input drive shaft; a geared carrier that includes at least a portion that is disposed axially between the first and second input elements, the geared carrier being engaged with an output member; and planets associated with the geared carrier. Some embodiments of the present systems comprise a housing in which the epicyclic arrangement is disposed; and/or fluid contained within the housing.

Abstract: A stacked or nested planetary gear set for a transmission includes a carrier member supporting for rotation a first set of planet gears, a second set of planet gears, and a third set of planet gears, wherein each of the second set of planet gears are intermeshed with the third set of planet gears. A first sun gear is intermeshed with each of the first set of planet gears. A first ring gear is intermeshed with each of the first set of planet gears. A second sun gear is directly connected to the first ring gear and is intermeshed with each of the second set of planet gears. A second ring gear is intermeshed with each of the third set of planet gears. The stacked planetary gear set may be axially aligned or axially offset.

Abstract: A rotary body driver includes a driving source and a planetary gear transmission to receive a driving force from the driving source. The planetary gear transmission includes a sun gear rotatable by the driving force received from the driving source, a plurality of planet gears meshed with and surrounding the sun gear with an identical interval between the adjacent planet gears, a rotatable carrier to rotatably support the plurality of planet gears, an outer gear encircling and meshed with the plurality of planet gears, and an output shaft combined with and supporting the carrier. A rotary body shaft mounting a rotary body is connected to the output shaft of the planetary gear transmission to transmit the driving force received from the output shaft to the rotary body. The outer gear is made of resin and the output shaft and the carrier are made of metal.

Abstract: An epicyclic gearing has a plurality of planet gears arranged about a transmission axis so as to form two arrays symmetrical with respect to a plane orthogonal to the transmission axis; the gearing has a body which, on one side, is adapted to be connected to a rotating member and, on the other side, is coupled to a ring; the ring has a plurality of relatively thin plate sectors and a plurality of pins, which extend in cantilever fashion and in opposite directions from the plate sectors and each support a respective planet gear; coupling between the aforesaid body and the ring defines at least one degree of freedom in rotation about a radial axis to allow a relative movement under load between the two components.

Abstract: A backlash-free planetary gear assembly comprising at least a first planet carrier member (4) and a second planet carrier member (5), which are rotatable relative to each other around the axis (7) of said assembly, and are connected by elastic means (10, 14) arranged to elastically react to a rotation between said planet carrier members, said elastic means being tensioned when said first member and second member are rotationally aligned in a design operation condition, so that the assembly, in use, is preloaded with a torque which tends to rotate said first planet carrier member relative to said second planet carrier member, in order to recover backlash.

Abstract: A gear arrangement for a planetary gearbox includes a planet carrier, a planet pin, a planet gear, bearing means located between the planet pin and the planet gear, the bearing means including a bearing ring, a retainer secured to the planet carrier by one or more bolts, and one or more shims located between the retainer and the planet pin. The planet pin is hollow and is in fluid communication with an inside surface of the bearing ring and with an inlet. This means that a fluid forced via the inlet and the hollow planet pin applies a radial force to the bearing ring, reducing the contact friction between the bearing ring and the planet pin and allowing an axial position of the planet pin to be adjusted to provide a correct preloading to the bearing means. This means that the bearing can be pre-set, in-situ using hydraulic actuator and oil injection.

Abstract: An epicyclic gear train includes a carrier that supports star gears that mesh with a sun gear. A ring gear surrounds and meshes with the star gears. The star gears are supported on respective journal bearings. Each of the journal bearings includes a peripheral journal surface and each of the star gears includes a radially inner journal surface that is in contact with the peripheral journal surface of the respective journal bearing. The epicyclic gear train has a gear reduction ratio of greater than or equal to about 2.3.

Abstract: A turbofan engine includes a fan rotatable about an axis, a compressor section, a combustor in fluid communication with the compressor section, a turbine section in fluid communication with the combustor, and a fan drive gear system including a carrier for supporting a plurality of gears. A torque frame is attached to the carrier. A plurality of connectors extends between the carrier and torque frame for securing the torque frame to the carrier. A scupper captures lubricant during gear operation and directing lubricant into a space between at least one of the plurality of connectors and at least one of the torque frame and the carrier.

Abstract: Described is a planetary harmonic differential transmission, comprised of a rigid externally-toothed inner sprocket, a rigid internally-toothed outer sprocket, a deformable belt that is toothed on both its internal and external faces, and a set of free-rotating planetary sprockets that are mounted on a rotating carrier cage and cause the belt to progressively engage and disengage from successive portions of the rigid sprockets. The input to the transmission is the relative motion between the carrier cage and the inner sprocket, and the output is the relative motion between the outer sprocket and the inner sprocket, resulting in a differential transmission.

Abstract: A flow formed part includes a first end, a second end, and a side wall extending therebetween. A reinforcing member is disposed around the second end. The side wall has a profile formed along an inner surface of the side wall. The profile is adapted to be substantially burr free after windows are formed in the sidewall. A method of making a flow formed part includes the steps of disposing a preform on a tailstock, providing a plurality of rollers adjacent the tailstock, providing a mandrel having an outer surface including a plurality of alternating channels and protuberances, and causing the rollers to press the preform against the outer surface of the mandrel.

Abstract: The invention relates to rotary units and rotary mechanisms that are suitable for use in numerous applications. Rotary units typically include rotational components that are configured to rotate. In some embodiments, for example, multiple rotary units are assembled in rotary mechanisms such that neighboring pairs of rotational components counter-rotate or contra-rotate relative to one another during operation of the rotary mechanisms. Rotational components generally include one or more implements that are structured to perform or effect one or more types of work as the rotational components rotate relative to one another in a given rotary mechanism. In certain embodiments, implements are configured to rotate and/or to effect the movement of other components as rotational components rotate.

Abstract: An input shaft damper (ISD) of a transmission, may include an inertia body assembly relatively rotatably mounted on an input shaft of the transmission, and a planetary gear set mounted on the input shaft so as to receive and increase a rotational force of the input shaft and output an increased rotational force to the inertial body assembly.

Abstract: A compound planetary gear mechanism includes at least two planetary gear mechanisms and a carrier. The at least two planetary gear mechanisms include a first planetary gear mechanism and a second planetary gear mechanism. The first planetary gear mechanism includes a plurality of first planetary gears. The second planetary gear mechanism includes a plurality of second planetary gears. The carrier is coupled to the plurality of first planetary gears and the plurality of second planetary gears. The carrier includes a first support shaft and a second support shaft. The first support shaft rotatably supports a first planetary gear among the plurality of first planetary gears. The second support shaft rotatably supports a second planetary gear among the plurality of second planetary gears and is independent of the first support shaft.

Abstract: The invention relates to a gear train (1), in particular a planetary gear train, for a wind turbine comprising a plurality of gears, in particular planet gears (4), which are each supported on a shaft (8) by means of a bearing element, wherein the bearing element is a multi-layer plain bearing (7).

Abstract: A system includes a gear system having a gear housing and a lower planetary carrier disposed in the gear housing, the lower planetary carrier being adapted to rotate relative to the gear housing. A top drive system is operatively coupled to the gear system, the top drive system having a top drive shaft that is adapted to be driven by the gear system. A single bearing that is adapted to facilitate rotation of the lower planetary carrier is positioned between the gear housing and the lower planetary carrier. A motor apparatus is operatively coupled to and adapted to drive the gear system by rotating the lower planetary carrier relative to the gear housing, wherein a rotational axis of the single bearing is adapted to move in a lateral translational direction with respect to the gear housing while the motor apparatus is rotating the lower planetary carrier.

Abstract: A fan gear drive system includes a fan shaft, a turbine shaft, a fixed structure, and a gear train which includes a torque frame that comprises a base with integrated gear shafts that are circumferentially spaced relative to one another. Each shaft provides a shaft axis. Intermediate gears are supported on each bearing assembly for rotation about the bearing axis. A central gear is located radially inward from and intermeshes with the intermediate gears. A ring gear is arranged about and intermeshes with the intermediate gears. One of the torque frame, central gear and ring gear is connected to the fan shaft. Another of the torque frame, central gear and ring gear is connected to the turbine shaft. The remaining of the torque frame, central gear and ring gear is connected to the fixed structure. A bearing assembly is mounted on each of the gear shafts and provides a bearing axis. Each bearing assembly supports the respective intermediate gear.

Abstract: A carrier structure is provided for a planetary gear set. The carrier structure includes a carrier body, a shaft part and a planetary pinion. The carrier body includes a first plate, a second plate and a support column extending between the first and second plates. The shaft part is connected to the first plate so as to be connected to or integrated with the carrier body as a unit. The planetary pinion is rotatably supported by the first and second plates to rotate about an axis eccentric from a center longitudinal axis of the shaft part. The support column extends from an external peripheral part of the second plate and converges toward an interconnection part between the first plate and the shaft part. Both ends of the support column is connected to or integrated with the interconnection part and the external peripheral part of the second plate, respectively.

Abstract: A novel transmission for cycles that significantly reduces torque interference with steering operations is provided. Such a transmission allows for improved recumbent cycling capabilities. The inventive device thus includes a combination of a fixed transmission assembly that reduces torque levels and a movable transmission assembly that multiplies torque levels, allowing for the avoidance of high torque effects through the vehicle's steering axis. As such, the capability of the overall cycle device to steer properly and to a rather wide angle from center while implementing such a torque transfer protocol allows for a unique recumbent cycle configuration. Such a device, then, may be utilized for a human-powered cycle vehicle or one that further includes an electrical component to allow for automated drive capabilities through a rear wheel or wheels, as well. The method of implementation of such a transmission within a variety of cycle devices is also encompassed within this invention.

Abstract: Disclosed is a reclining mechanism comprising: a first plate fixed to a seat back; a second plate fixed to a seat cushion; a plurality of planetary gears in meshing engagement with internal gears of the first and second plates; a sun gear in meshing engagement with the planetary gears; and a holding member rotatably holding the planetary gears. An inclined wall portion of the holding member, and an inner peripheral wall of a concave portion of the second plate, define therebetween a wedge-shaped space in which a restriction member is displaceably disposed. The inclined wall portion of the holding member is formed such that a width of the wedge-shaped space is gradually narrowed toward a counter direction opposite to a specific direction along which the first plate is urged to be rotated according to a force applied to the seat back in a rearward tilting direction.

Abstract: The invention relates to rotary units and rotary mechanisms that are suitable for use in numerous applications. Rotary units typically include rotational components that are configured to rotate. In some embodiments, for example, multiple rotary units are assembled in rotary mechanisms such that neighboring pairs of rotational components counter-rotate or contra-rotate relative to one another during operation of the rotary mechanisms. Rotational components generally include one or more implements that are structured to perform or effect one or more types of work as the rotational components rotate relative to one another in a given rotary mechanism. In certain embodiments, implements are configured to rotate and/or to effect the movement of other components as rotational components rotate. In some embodiments, engines include rotary mechanisms and are used in, for example, ground vehicles, marine vehicles, aircraft, or devices.

Abstract: An assembly including an input including first, second, third and fourth passages, a shaft surrounding the input, a housing including a hub surrounding the shaft, a first path connecting the first passage to a first servo cylinder, a second path connecting the second passage to a second servo cylinder, a third path connecting the third passage to balance volumes, and a fourth path connecting the fourth passage to a third servo cylinder, bypassing the hub.

Abstract: A planetary stage of a planetary gear unit with a gearbox housing includes a ring gear, at least one planet gear, and a sun gear, which are rotatably positioned. The ring gear is connected via a tappet to a sun gear shaft of an upstream planetary gear stage, and is rotatably mounted in the gearbox housing. The planetary gear unit exhibits increased robustness by connecting the ring gear on a side opposite the tappet to a ring gear support that is seated in the gearbox housing.

Abstract: An electromechanical damper for a vehicle for damping between two components mechanical oscillations by which a drive torque is transmittable to an electric generator for generating a damping force includes first and second gearboxes in the form of planetary gear trains, each having a sun wheel, with the sun wheels being connected to end faces of a rotor of the generator, respectively. A stator housing forms a gear element which is integrated in the first and second gearboxes. The sun wheel, ring gear and planet wheels of the first and second gearboxes are each provided with helical teeth in axial direction, with the helical teeth of the sun wheel of one of the first and second gearboxes and the sun wheel of the other one of the first and second gearboxes being directed in opposition to one another.

Abstract: A planetary gear-set for continuously varying the output ratio between torque and rotational velocity, in which a central static sun-gear is considered as a reference to all other components. The structural aspects include a set of segments of a ring gear each such segment includes a linked couple of cogwheels. Another set of couples of linked cogwheels, is a sun-gear follower and the coupled member is output transfer cogwheel. A mechanism for changing the orientation of the output transfer cogwheel with respect to the sun-gear follower. A transient link connects between the above two separate systems of sets.

Abstract: A planet carrier 100 has a member 110 which is resistant to buckling caused by torsional stress and which increases a torsional stiffness of the planet carrier 100, so that a torsion load is transmitted evenly from the input member 120 into the planet pins 104 without twisting the planet carrier 100.

Abstract: Rotary actuators having a final output member rotatable about an axis of rotation; a motor unit designed to drive the final output member for rotation about the axis of rotation; and an elastic unit arranged between the motor unit and the final output member and having an input member torsionally coupled to the motor unit and an output member rigidly connected for rotation with the final output member are provided.

Abstract: A planet wheel carrier comprises first and second end-sections (102, 103) for supporting shafts of planet wheels (113-114) of a planetary gear. The planet wheel carrier comprises a support structure (104) connected to the first and second end-sections and located between the first and second end-sections in the axial direction of the planet wheels and between the planet wheels in the circumferential direction of the planet wheel carrier. The first end-section is attached to the support structure so that at least part of the first end-section is non-destructively detachable from the support structure. The fact that at least part of the first end-section can be detached from the support structure facilitates the maintenance of the planetary gear because, after removing the first end-section or its detachable part, the planet wheels can be removed and installed substantially easier than in cases where there is a traditional one-piece planet wheel carrier.

Abstract: A planet gear carrier (1) for an automotive vehicle having a plurality of mounting regions (2), mounting a respective planet gear (4), and between the mounting regions (2), at least one aperture (5) such as a through-hole (6) that weakens the planet gear carrier (1), and when filled by a stiffening element (7) reinforces the planet gear carrier (1). A planet gear carrier having installed planet gears, a spur gear differential comprising such a planet gear carrier as well as a spur gear differential comprising two planet gear carriers of the aforesaid type.

Abstract: A planetary drive including a planet carrier with two axially spaced supports that include aligned bores is provided. A planetary gear is located on a through hardened pinion shaft extending axially through the aligned bores. The pinion shaft includes locally deformed axial ends such that the pinion shaft is axially fixed within the planet carrier and is circumferentially rotatable.

Abstract: A planet wheel carrier comprises first and second end-sections for supporting shafts of planet wheels (113-114) of a planetary gear so that geometrical rotation axes of the planet wheels are pithed at substantially uniform intervals on a periphery of a circle. The planet wheel carrier comprises a support structure connected to outer rims of the first and second end-sections and located between the first and second end-sections in the axial direction and between the planet wheels in the circumferential direction. The support structure is so far from the geometrical rotational symmetry axis of a sun shaft (111) of the planetary gear and the geometrical rotation axes of the planet wheels are so near to the rotational symmetry axis of the sun shaft that the diameter (D) of the planet wheels is capable of being at least 90% of a distance (d) between the geometrical rotation axes of adjacent planet wheels.

Abstract: A planetary gear device of vehicular power transmitting system includes a carrier, pinion gears, a sun gear, a ring gear, and a cylindrical output member disposed coaxially with the carrier and having the ring gear on inner surface, and a radially outer output gear on outer surface. The carrier is supported by a stationary support wall non-rotatably. The carrier is fixed to the support wall within a teeth width of the output gear. The carrier has support pins rotatably supporting the pinion gears respectively, a carrier body fitted with one end of each the support pin and fixedly fitted in the support wall non-rotatably, and a carrier cover connected to connecting portions extending from the carrier body and fitted with the other end of each the support pin. The support wall has support arm which abuts with the carrier cover. The carrier cover is fixed to the support arm.

Abstract: A planetary carrier of a planetary gearing includes two planet web cheeks interconnected by planet webs. The sides of the planet web cheeks are mutually opposed in the circumferential direction and, together with outer lateral surfaces of the planetary webs, define lateral surface openings. At least one planet pin opening for receiving a pin for mounting a planet gear is provided in at least one planet web cheek. At least one planet web cheek, in the region of the attachment of a planet web, has a transition reducing the axial length of the planet web. The planetary carrier is optimized in terms of weight and strength by way of the transition having a rounded contour in the form of a spherical recess.

Abstract: A lubricating system for lubricating components across a rotation gap has an input that provides lubricant to a stationary first bearing. The first bearing has an inner first race in which lubricant flows. A second bearing rotates within the first bearing and has a first opening in registration with the inner first race such that lubricant may flow from the inner first race through the first opening into a first conduit.

Abstract: A planetary gear system (P) includes a sun gear (2), a ring gear (4) a carrier (6) located between the sun and ring gears (2, 4), and planet pinions (8, 10) organized in two arrays and supported on flexpin assemblies (32, 34) in the carrier (6). All of the gearing is helical, with the sun and ring gears (2, 4) having their teeth arranged in at double helix angles (herringbone) and the planet gears (8, 10) at single helix angles. The pinions (8) of the one array engage the teeth of one angle on the sun and ring gears (2, 4) and the pinions (10) of the other array engage the teeth of the other angle on the sun and ring gears (2, 4). Torque transfers through the carrier (6) through two torque paths (a, b)—one to the flexpin assemblies (32) for one array and the other to the flexpin assemblies (34) of the other array—and the paths (a) is stiffer than the path (b). Owing to the helical cut of the teeth the planet pinions (8, 10) of the two arrays exert oppositely directed axial forces (A) on the sun gear (2).

Abstract: A compound star gear system includes a sun gear rotatable about a first axis that drives a first plurality of star gears rotatable about a plurality of fixed axes. The first plurality of star gears drives a second plurality of star gears spaced axially apart from the first plurality of star gears. The second plurality of star gears drive the ring gear that in turn drives a fan drive shaft.

Abstract: A parallel eccentric electro-mechanical actuator provides motive power and includes an electric prime mover that drives the reducer's pinion gear. This pinion drives minimum three star gears with stationary shaft bearings. Each shaft contains an eccentric which are completely in parallel with each other. These eccentrics can be thought of as parallel/in-phase driven crankshafts. Each eccentric drives the parallel eccentric (PE) gear through a bearing. The PE gear exhibits a circular motion (without rotation) which in itself is unbalanced. The crankshafts have another eccentric which create an opposite inertia force to balance that of the PE gear. The PE gear contains an external toothed gear on its periphery. It meshes with the internal teeth of the output ring gear. The relative motion between the PE gear and the ring gear is that the PE gear rolls inside the ring gear. This relative motion is called hypo-cycloidal motion.

Abstract: A vehicular power transmitting system including an oil pump constructed to sufficiently reduce a required drive torque. A high-pressure-port discharge amount of first and second high-pressure passages of the oil pump is determined such that an amount of consumption of working oil of relatively high pressure can be afforded only by the high-pressure-port discharge amount, during steady-state running of a vehicle in which engine speed is not lower than a predetermined threshold value corresponding to a predetermined lowest target input shaft speed of a continuously variable transmission for its shifting control. The pressure of the working oil discharged from first and second low-pressure discharge passages is kept at a predetermined low level, and the required drive torque of the oil pump is sufficiently reduced.

Abstract: A gear support assembly for a turbine engine includes an epicyclic gear arrangement and a first tapered bearing and a second tapered bearing spaced apart from the first tapered bearing. The first tapered bearing and the second tapered bearing are arranged axially forward of the epicyclic gear arrangement and support the epicyclic gear arrangement.

Abstract: A drive unit for an electric bicycle, the drive unit including a motor configured to generate a rotary force to drive a wheel of the electric bicycle, a reduction gear unit provided with a plurality of gears to decelerate a rotary force generated from the motor, and a ring gear configured to output the rotary force which is decelerated by the reduction gear, wherein a rib is formed on at least one of two lateral sides of the ring gear.

Abstract: Disclosed is a speed reducer capable of precisely and reliably maintaining a rotational force of the output shaft and of maximizing its efficiency by allowing the rotational force of the driving shaft to transmit and to slow down via a plurality of bevel gears and by preventing the fluctuation of the output shaft so as to prevent uneven wear due to the long working and to prevent the damage due to the fluctuation. The speed reducer comprises a pair of driving gears 11,12 installed at a one end of a driving shaft 10 driven by a driving means, a pair of driven gears 21,22 meshed with the driving gear 11,21 and a rotational member 200 for outputting the rotational force to slow down, in which the driven gears 21,22 comprise a bevel gear, respectively and the rotational member 200 is coupled to the driven gears 21,22.

Abstract: A planetary gear unit including a ring gear, a sun gear provided on an inner circumferential side of the ring gear, at least one planetary gear arranged between the ring gear and the sun gear to mesh with the ring gear and the sun gear, a planetary pin fixed to a carrier and inserted in a shaft hole of the planetary gear, and a slide bearing arranged between the planetary gear and the planetary pin, wherein the slide bearing is formed of a resin material and is provided on an outer periphery of the planetary pin at least in a region where the planetary pin slides relative to the planetary gear.

Abstract: A planetary clutch assembly, including: a first input shaft; an output shaft; a planetary gear set connected to the first input shaft and including a ring gear and a planet carrier; first and second clutches; and an actuator. The planet carrier is connected to the first clutch so that the planet carrier and a portion of the first clutch rotate in unison. The ring gear is grounded to a case for the transmission. The first and second clutches are connected to the output shaft so that the output shaft and a portion of the first and second clutches rotate in unison.

Abstract: A gear device includes an outer cylinder, a plurality of crank shafts, a carrier which rotatably supports the plurality of crank shafts and rotates relative to the outer cylinder in synchronization with the rotation of the crank shafts, a plurality of spur gears fixed coaxially with the crank shafts at portions extending toward an outer side of the carrier in the crank shafts, an input gear which includes a gear part that engages with the plurality of spur gears, and transmits rotational drive force to each of the spur gears, and washer means comprising washers disposed outside the carrier. The input gear is regulated from moving in a radial direction of the input gear by engaging with the plurality of spur gears at a position outside the carrier in an axial direction, and regulated from moving in an axial direction of the input gear by the washers.

Abstract: A planetary carrier having: a first carrier member that has a first shaft support portion that supports respective first ends of a plurality of pinion shafts inserted through the pinion gears, and a plurality of first leg portions extended from the first shaft support portion; a second carrier member that has a second shaft support portion that supports respective second ends of the plurality of pinion shafts, and a plurality of second leg portions extended from the second shaft support portion; and an annular member that has one end surface with which the plurality of first leg portions of the first carrier member and the plurality of second leg portions of the second carrier member are brought into abutment, and a welded portion to which the plurality of first leg portions and the plurality of second leg portions are welded at different positions in a circumferential direction.

Abstract: A mechanical energy storage system and an electric or hybrid vehicle with an energy storage system of this type are provided. The energy storage system has a planetary gear. The sun wheel of same is connected to an electric motor of the vehicle. An outer wheel of the planetary gear is connected to a wheel drive of the vehicle. The planet wheels are connected rigidly to one another via a planet wheel linkage. To increase the flywheel mass, the planet wheels have “flywheel mass regions” which have a larger diameter than a gearwheel region situated between the sun wheel and the outer wheel. Due to these flywheel mass regions, a considerable amount of rotational energy may be stored in the rotating planet wheels with the planetary gear. Such a storage of kinetic energy is intended to improve a degree of recuperation or the starting characteristics of an electric vehicle.

Abstract: A method of assembling an epicyclic gear train comprises the steps of providing a unitary carrier having a central axis that includes spaced apart walls and circumferentially spaced connecting structure defining spaced apart apertures provided at an outer circumference of the carrier. Gear pockets are provided between the walls and extend to the apertures. A central opening is in at least one of the walls. A plurality of intermediate gears are inserted through the central opening and move the intermediate gears radially outwardly into the gear pockets to extend into the apertures. A sun gear is inserted through the central opening. The plurality of intermediate gears is moved radially inwardly to engage the sun gear.

Abstract: A planetary gear pump comprising a central gear and a plurality of planet pairs provides a space efficient transducer between hydraulic and mechanical energy. When it is configured as a pump, a high flow rate is provided. When it is configured as an actuator, a high torque is provided. A dual-stage configuration may be used as a low speed high torque actuator with high energy efficiency, high pitch velocity, and low slippage.

Abstract: A fan gear drive system includes a torque frame having a base with integrated gear shafts circumferentially spaced relative to one another. A fan shaft is integrated with the base, such that the torque frame provides rotational output from the fan gear drive system. Each shaft provides a shaft axis. A bearing assembly is mounted on each of the gear shafts and provides a bearing assembly. The bearing assembly includes a spherical bearing configured to permit angular movement of the bearing axis relative to the shaft axis.

Abstract: In a differential mechanism including a pinion shaft and a pair of axle shafts spaced apart from the pinion shaft along axes of the axle shafts, a spacer is positioned between the pinion shaft and each of the axle shafts for controlling axial end play of the axle shafts. A retainer separate from the spacers is mounted on the pinion shaft for securing the spacers in position.

Abstract: The present invention relates to a mechanical assembly (10) provided with a sun gear (30) and a plurality of planet gears (50) co-operating with said sun gear (30). Each planet gear (50) includes a vibration sensor (61) forming part of structural anomaly monitoring means, said monitoring means being provided with a control member (63) that communicates with each vibration sensor (61) in order to receive a measurement signal coming from each vibration sensor (61) in order to enable anomaly monitoring to be performed.