Abstract: The present invention provides an assembly, system, and method for an epicyclic washpipe swivel cartridge that can includes a gear reduction assembly with a sealed lubrication enclosure that can operate independent of roller bearings. The cartridge includes a pair of clamshell clamps to insert the cartridge in position without requiring dislocation of the mating assemblies. The system can further include a hydraulic port for efficient activation of the seals before placing high on a top drive of an oil derrick or other remote location.

Abstract: An epicyclic reduction unit for applications with an upward output, which comprises a casing for containing at least one first epicyclic reduction stage that is interposed between an input actuation unit and an output shaft that is arranged in an upper region, the first stage being composed of a driving sun gear that rotates about a main rotation axis that is vertical and a ring gear that is integral with the casing, between which a plurality of planet gears is engaged which are supported in rotation about their own longitudinal axis and about the rotation axis by a driven planet carrier, which in turn rotates about the rotation axis, means being provided for connecting by suspension at least the planet carrier of the first stage to the output shaft, the sun gear of the first stage resting on the input actuation unit, which actuates it in rotation about the rotation axis.

Abstract: A drive assembly has a drive housing with a gear set and a wheel mount configured to rotate about a rotation axis on a wheel bearing assembly. A clutch component is mounted to a clutch hub and disposed between an input shaft and the gear set to selectively cause rotation of the wheel mount. A clutch actuation assembly moves the clutch component into energized and de-energized states with respect to the input shaft. The clutch actuation assembly has a spring to position the clutch component in one of the energized and de-energized states and a piston to position the clutch component in the other of the energized and de-energized states. The clutch actuation assembly has a reaction plate that is acted upon in a first axial direction by the spring and is acted upon by the piston in a second axial direction.

Abstract: An electric motor construction is provided with a planetary gear system, including an annular thin-rimmed stator (1) as well as a torque takeoff shaft (2) concentric relative thereto. The construction includes inside the stator (1) an annular thin-rimmed rotor (3); a sun gear (4) fixedly coupled to the rotor and concentric with the takeoff shaft (2); an intra-rotor immovably coupled ring gear (5) with a toothed inner surface; planet gears (6) meshing with the ring gear and the sun gear; a planet carrier (7) that the planet gears are supported on; as well as a coupling arrangement (8) for transmitting torque of the rotor optionally directly or by way of the planet carrier to the torque takeoff shaft.

Abstract: A reduction gear case (29) of a planetary gear reduction mechanism (28) is mounted on a reduction gear mounting part (18C) of an axle tube (18). A carrier (33) is provided with a wheel mounting part (33B) projecting outside of the reduction gear case (29). A wheel (2) is mounted on the wheel mounting part (33B) and an oil seal (39) is disposed between an outer peripheral surface of the wheel mounting part (33B) and an inner peripheral surface of the front wheel (2) of the reduction gear case (29). As a result, the oil seal (39) can be exposed by removing the front wheel (2) from the wheel mounting part (33B) in the carrier (33). On the other hand, a brake mechanism (40) is disposed on the inner peripheral side of the reduction gear mounting part (18C). Therefore, the brake mechanism (40) can be exposed by removing the front wheel (2) from the wheel mounting part (33B) in the carrier (33) and the planetary gear reduction mechanism (28) from the reduction gear mounting part (18C).

Abstract: A transmission mechanism of an all-terrain vehicle is provided, which includes an independent suspension axle. The independent suspension axle includes a left driving half-axle and a right driving half-axle. A jaw differential is provided at a joint of the left driving half-axle and the right driving half-axle and is configured to allow half-axles at two sides to rotate at different speeds when the axle of the all-terrain vehicle transmits power to the half-axles at the two sides, and prevent a wheel at one side from slipping. For the all-terrain vehicle adopting the jaw differential, side tipping, side slipping, and tire scuffing are not apt to occur, thus the vehicle may get rid of stuck conditions such as slipping, and the working reliability of the all-terrain vehicle is improved. An all-terrain vehicle adopting the transmission mechanism is further provided.

Abstract: A planetary gear mechanism has a sun gear disposed to a rotating shaft, a plurality of pinion gears, a carrier supporting the plurality of the pinion gears, a ring gear meshing with the pinion gear on the outer diameter side of the carrier and a case holding the ring gear on the outer diameter side thereof. The ring gear is slidable in the axial direction of the rotating shaft with respect to the case. The planetary gear mechanism has a load transmission member abutting to an inner diameter side end portion of the ring gear and holding the carrier and the ring gear so as to be relatively rotatable. The load transmission member transmits an axial load from the ring gear to the carrier.

Abstract: There are provided a hub bearing, a speed reduction mechanism, and an in-wheel motor, including an inner race portion which is fixed to a support mechanism, an outer race portion which is connected to a wheel, and a rolling element which is disposed between the inner race portion and the outer race portion, and the outer race portion includes an outer race member, a wheel flange, and a fixation mechanism. The end surface of the wheel flange away from the outer race member in a direction parallel to a rotation shaft extends to the rotation shaft in relation to the inner race portion in the radial direction of the rotation shaft.

Abstract: There is provided an in-wheel motor that can reduce the loss of energy. An electric vehicle driving device includes a first motor, a second motor, a speed change mechanism, a speed reducing mechanism, and a clutch device. A first planetary gear mechanism of the speed change mechanism is a single-pinion type planetary gear device. A second planetary gear mechanism of the speed change mechanism is a double-pinion type planetary gear device. The electric vehicle driving device operates so as to switch a first speed change state where the magnitudes of rotational forces of the first motor and the second motor are equal to each other and the directions of the rotational forces are opposite to each other, and a second speed change state where the rotational forces have the same magnitude and direction.

Abstract: A torque tube includes a ring gear having a first axial end, a second axial end opposite the first axial end, an inner surface including a plurality of teeth, and an outer surface with a mating portion formed adjacent to the first axial end of the ring gear. The torque tube also includes a barrel portion joined to the second axial end of the ring gear at a radial location inward from a radial location of the mating portion. The barrel portion extends axially away from the ring gear.

Abstract: There is described a power-driven wheel for a military vehicle, having an axial-flow electric motor, and a hub connected functionally to the motor and rotating about an axis; the motor has an output member housed inside the hub; and the wheel has an epicyclic reducer interposed functionally between the hub and the output member.

Abstract: A planetary wheel end assembly includes an axle shaft having an inboard end and an outboard end and a planetary gear assembly that receives driving input from the axle shaft. The planetary gear assembly includes a sun gear that is fixed for rotation with the axle shaft, a plurality of planet gears that are in meshing engagement with the sun gear, a non-rotating ring gear that is in meshing engagement with the planet gears, and a planetary spider that supports the plurality of planet gears. The planetary spider provides driving output to rotate a wheel component. The sun gear includes a sun gear body having a plurality of sun gear teeth in meshing engagement with the planet gears and a plurality of splines that are coupled with mating splines on the axle shaft. The plurality of splines are axially inboard of the plurality of sun gear teeth.

Abstract: A drive system with drive and freewheel modes comprises a final transfer element for receiving and rotating with a drive axle, and a final drive assembly in rotational communication with a motor. The final drive assembly is selectively engageable with the final transfer element to drive an axle received by the final transfer element. The final drive assembly has an engaged condition in which power is transferred through the final drive assembly to the drive axle and a disengaged condition in which power is not transferred through the final drive assembly. The final drive assembly comprises a gear set selectively engagable with the final transfer element in the engaged condition such that rotation of the gear set is transferred to the final transfer element. The gear set is selectively disengageable from the final transfer element in the disengaged condition such that rotation of the final transfer element is not transferred to the gear set.

Abstract: A planetary wheel end assembly includes an axle shaft having an inboard end and an outboard end, a planetary gear assembly receiving driving input from the axle shaft, and a rotational support element that pilots the outboard end of the axle shaft. The planetary gear assembly includes a sun gear that is fixed for rotation with the axle shaft, a plurality of planet gears that are in meshing engagement with the sun gear, a non-rotating ring gear that is in meshing engagement with the planet gears, and a planetary spider that supports the plurality of planet gears. The planetary spider provides driving output to rotate a wheel component. The rotational support element is positioned radially between the outboard end of the axle shaft and planetary spider to allow relative rotation between the planetary spider and the outboard end of the axle shaft.

Abstract: A compact gear reducer electric motor assembly with an internal brake disclosed and claimed wherein a high speed electric motor is interconnected with a gear reducer having substantial gear reduction. The assembly includes a spindle, a brake mounted substantially within said high speed electric motor and operable against a spring biasing said brake into engagement with ground. The brake is electrically actuated to permit transmission of energy to the gear reducer. The gear reducer includes an input, intermediate and output planetary stages. The input and intermediate stages residing within the spindle, and, the output planetary stage drives an output ring gear. Releasing means for releasing the output ring gear from the brake allowing rotation thereof.

Abstract: A planetary transmission includes a sun gear, which constitutes an input drive to the planetary transmission, a ring gear arranged around the sun gear, and a planet carrier which is designed to rotate and which carries at least one planet wheel, which planet wheel meshes with the sun gear and the ring gear. The planet carrier constitutes an output drive from the planetary transmission. The planetary transmission further includes a wet disk brake, a first set of brake disks in the brake being rotationally locked to the planet carrier and thereby in operation rotating at the rotational speed of the planet carrier. The planetary transmission further comprises an arrangement for circulation of a cooling fluid through the brake which is rotationally locked to the sun gear and thereby in operation rotates at the rotational speed of the sun gear.

Abstract: A travel assembly, for example, suited for arrangement on a vehicle such as a mining dump truck, is provided with a travel motor, a planetary speed reduction mechanism for transmitting rotation of the travel motor at a lower rotational speed, a spindle forming an axle, and a wheel supported on the spindle via a tapered roller bearing and rotatable by the planetary speed reduction mechanism. The planetary speed reduction mechanism includes a sun gear rotatable by rotation of a shaft of the travel motor, planet gears for rotating the wheel in response to rotation of the sun gear, stepped pins forming rotary shafts for the planet gears, a carrier for holding the stepped pins thereon, and bolts for fixedly securing the stepped pins on the carrier. The travel assembly is provided with a spline connection connecting the spindle and the carrier with each other and a limiting member for limiting movements of the bolts in a direction toward the tapered roller bearing.

Abstract: A drive axle assembly for driving a wheel of a vehicle includes a moveable suspension arm and a wheel spindle fixed to the suspension arm. A planetary gearset includes a sun gear, a ring gear and a carrier rotatably supporting a plurality of planet gears in meshed engagement with the sun gear and the ring gear. The carrier encompasses the wheel spindle and is drivingly connected to the wheel. An electric motor includes a rotor and a stator. The rotor drives the sun gear.

Abstract: An in-wheel drive unit basically has a motor, a motor casing member, a planetary gear set, a hub flange and a pair of bearings. The motor includes a rotor that is rotatably driven. The motor casing member covers the motor. The planetary gear set is arranged coaxially about the rotational axis of the rotor. The planetary gear set includes a sun gear coupled to the rotor, a ring gear supported on the motor casing member, at least one pinion gear operatively arranged between the sun gear and the ring gear, and a carrier supporting the pinion gear. The hub flange is fixedly coupled to the carrier. The bearings rotatably support the hub flange and the pinion gear. The bearings are disposed on opposite sides of the pinion gear with respect to an axial direction of the pinion gear.

Abstract: A drive shaft reduction gear using a planetary gear mechanism and having a high durability, wherein a rotation of a drive shaft is transmitted to a wheel hub via the planetary gear mechanism, a ring gear hub provided in a first ring gear in the planetary gear mechanism is hooked to a bearing holder attached to an axle housing via a split ring, thereby a movement in an axial direction of the first ring gear is regulated, and further, a shaft portion provided in the ring gear hub is non-rotatably supported by an inner peripheral surface of a shaft end portion of the axle housing.

Abstract: A monitor display carried by a vehicle. The monitor display is mounted proximate a rim of a corresponding motive wheel of a vehicle. A rim of the motive wheel has a surface which is contoured to substantially conform to an inner surface of the monitor display. The monitor display is rigidly maintained in a non-rotating fashion.

Abstract: A planet transmission (1) for a land vehicle including a planet carrier (7), which is designed for rotation and has at least one journal (8) for supporting a planet wheel (6), and a brake (2), a first set of brake discs (10) being rotationally locked to the planet carrier (7). The brake discs (10) in the first set comprise means (17) for rotationally locking the brake discs (10) directly to the planet wheel journal. A drive device for a wheel of a vehicle is also disclosed that includes the planet transmission (1), as is a brake disc (10) for the planet transmission (1).

Abstract: A driving axle for a vehicle driven by an electric motor disposed on a driven motor shaft. Drive shafts are coupled to the motor shaft via the interposition of a reduction transmission stage and a following differential transmission. As part of the transmission stage an externally toothed sun pinion is disposed on the motor shaft, which is mounted in motor shaft bearings connected to a gearbox and absorbing radial and axial forces. A sleeve is disposed between, and supported on opposite sides against, the motor shaft bearings and sun pinion. A securing device is disposed on the free end of the motor shaft for fixing the sun pinion against the sleeve. Gears of the transmission stage mesh with the sun pinion, which together with the gears are embodied as helical gears having a force component acting in the direction of the motor shaft bearings.

Abstract: There is provided a reduction gear device applied to a vehicle having a motor unit with a motor shaft for outputting a driving force for driving a driving wheel. The reduction gear device includes an input shaft operatively connected to said motor shaft; a reduction gear unit operatively connected to said input shaft; a brake disk supported by the input shaft in a relatively non-rotatable and axially movable manner; an operating member for pushing and moving the brake disk toward a braking surface; a housing for accommodating the reduction gear unit, the brake disk and the operating member; and a brake operating shaft which is supported rotatably about an axis by the housing along a radial direction of the brake disk and has an engagement part engaging with the operating member.

Abstract: An agricultural tractor rear suspension system having a longitudinally extending suspension arm pivotally coupled to the tractor chassis at one end and to a planetary gearbox at the opposing end, a differential connected to the tractor chassis, and a driveshaft rotatably supported at one end by the planetary gearbox and supported at the other end by the differential housing wherein the driveshaft is configured to resist suspension arm flexure by communicating tensile and compressive forces from the suspension arm to the tractor chassis.

Abstract: A steerable rear suspension for a tractor includes a chassis comprising a front end, a rear end, a left side and a right side; an engine mounted on the chassis; a pair of steerable front wheels coupled to the front end, left and right side of the chassis; a left rear suspension including a left rear suspension arm pivotally coupled to the chassis at a leading end of the suspension arm, and a first steerable planetary gear system mounted on a trailing end of the suspension arm; a right rear suspension including a right rear suspension arm pivotally coupled to the chassis at a leading end of the suspension arm, and a second steerable planetary gear system mounted on a trailing end at the right suspension arm; and left and right rear wheels driven by the first and second planetary gear systems.

Abstract: A tractor has sprung left and right rear suspensions, each suspension including a suspension arm pivotally coupled to the tractor chassis to pivot about a pivot point. A planetary gear system is fixed to the suspension arm having a sun gear driven by the engine and a planetary gear carrier that is coupled to and drives an axle supporting a rear wheel. The ring gear is fixed with respect to the suspension arm.

Abstract: A final drive assembly for transmitting torque between an input and an output includes a compound gear assembly. The compound gear assembly includes at least three planetary gear trains and is in driving engagement with the input. Each planetary gear train of the at least three planetary gear trains is adapted to coactively and drivingly engage the output, wherein torque generated by the input is distributed to the output by each of the planetary gear trains.

Abstract: Method and arrangement for driving a wheel of a vehicle in which the arrangement includes a planetary gear transmission (6) which in turn has a sun gear (7) connected to a driving axle (4), a planet carrier (11) on which at least one planet gear (8) is arranged and the planet gear is also arranged in engagement with the sun gear (7), and a ring gear (9) arranged around, and also in engagement with the planet gear. The driving arrangement also includes a braking device (16) and a wheel hub (12), which hub is connected to the planet carrier (11). The braking device is adapted to brake the planet carrier relative to a static part (18) arranged outside the planet gear carrier in the radial direction. The ring gear (9) and the outer, static part (18) are constructed in one piece in the form of an annular member (20).

Abstract: A hub assembly includes a carrier that is attached to a supporting structure, a shaft having a pair of sun rollers located in the carrier, a hub having a pair of rings, each surrounding a different sun roller, and planet rollers arranged in two rows between the sun rollers and the rings. The carrier has axles about which the planet rollers rotate. The planet rollers bear against each other at beveled end faces such the rollers on each axle back each other. Each roller contains an antifriction bearing which enables it to revolve on its axle and transfer radially and/or axially directed loads to the carrier. The planet roller axles are supported in the carrier such that wheel loads are transferred from the hub to the carrier and then to a supporting structure to which the carrier is mounted such that the wheel loads bypass a central shaft which extends through the hub and carrier.

Abstract: A driveline for a mobile vehicle comprises a one-step planetary transmission (7) in which the outer central wheel (10) is non-rotatably held, the inner central wheel (6) forms the output and the planet carrier (12) forms the output which can be connected with the housing (4) via a brake (14). To ensure an easy assembly, the output flange (17) is supported in the housing (4) via a first bearing (28) and the planet carrier (12) via a second bearing (26), one pivot (24) of the planet carrier (12) is non-rotatably held in one hole of the output flange (17).

Abstract: A wheel end assembly for a mass transit vehicle includes an output shaft mounted to a wheel hub for driving a vehicle wheel. The output shaft is driven by a gear assembly mounted within a gear housing and operably coupled to an input shaft. The gear assembly includes an input gear driven by the input shaft, a first reduction gear in meshing engagement with the input gear, a second reduction gear operably coupled to the first reduction gear for rotation therewith, and an output gear in meshing engagement with the second reduction gear. The first and second reduction gears are supported on a common shaft that is positioned between the input and output shafts. The input gear and first reduction gear are positioned outboard from the output gear and associated bearings. This double reduction configuration allows vehicle aisle width to be maintained while providing a deeper drop allowing the vehicle floor to be lowered to a position closer to the ground.

Abstract: The invention relates to an automotive transmission (1) designed in the form of a planetary transmission with an integrated brake, preferably for final drive mechanisms of working machines such as wheel loaders or industrial trucks. A sun gear (2) drives a planet carrier (5, 105) via at least one planetary gear (3), which rolls on a fixed internal-geared wheel (4, 104). The planet carrier (5, 105) holds the inner brake plates (6) of a multi-disc plate in an outer radial area. The outer brake plates (6) and the wheel support are accommodated by a component (16) of the housing (12). The planet carrier (5, 105) is axially braced on a radially outwards pointing journal (7) via a central accessible screw (9) with an output range (8) and transmits output torque to the flange via teeth.

Abstract: An electronic drive unit assembly independently drives each drivable wheel on a heavy-duty vehicle. The drive unit assembly includes a spindle that defines an inner chamber and which is mounted to a vehicle structure. A wheel hub is mounted for rotation relative to the spindle. An electric motor is mounted within the inner chamber and has an output shaft that is operatively coupled to a reduction gear assembly that is used to drive the wheel hub. The reduction gear assembly includes an inner ring gear mounted to the spindle and an outer ring gear mounted to the wheel hub. An inner set of planet gears is in meshing engagement with the inner ring gear and an outer set of planet gears is in meshing engagement with the outer ring gear. A planetary spider assembly rigidly connects the inner and outer sets of planet gears. The inner planet gears have a different number of teeth than the outer planet gears to achieve the desired gear reduction.

Abstract: A vehicle wheel end assembly includes a sleeve member that allows air to be vented from the wheel end while significantly reducing venting of lubricating fluid. The wheel end includes a hub that is driven by a gear assembly. Lubricating fluid is stored within the hub to lubricate the gear assembly. Air pressure that builds up within the wheel end during vehicle operation is vented from the wheel end assembly via a vent path. A sleeve is installed within the wheel end to block the lubricating fluid from entering the vent path.

Abstract: A wheel end assembly having a dual wheel configuration includes independently rotating wheel hubs to reduce tire wear. The wheel end includes a first planetary gear assembly with a sun gear driven by a differential side gear and a ring gear for driving one wheel hub. A second planetary gear assembly with a sun gear driven by a differential side gear and a ring gear drives another wheel hub. A differential assembly is coupled to the first and second sun gears to allow the first and second wheel hubs to rotate relative to one another as the vehicle executes turning maneuvers.

Abstract: A multi-speed wheel hub includes a sun gear engagement clutch and a housing engagement clutch. A single shift ring is coupled to and rotates with the input member. The shift ring is positioned between the sun gear engagement clutch and the housing engagement clutch. The shift ring is axially movable along the input member. Upon movement of the shift ring in a first direction, a first engagement clutch of the shift ring engages the sun gear engagement clutch so that torque from the input member is transmitted by the shift ring to the sun gear through a planet carrier and a ring gear to the housing. Upon movement of the shift ring in a second direction a second engagement clutch of the shift ring engages the housing engagement clutch so that torque from the input member is transmitted by the shift ring directly to the housing.

Abstract: A wheel and final drive assembly for a work machine, such as a mining truck, having a driven rotatable wheel having inboard and outboard rims mounted thereto. The final drive assembly including a first and a second reduction gear assembly. A carrier output adapter having an inboard end, an outboard end, a cover attached to the outboard end and a mounting surface. The carrier adapter being attached at the inboard mounting surface to a outboard rim mounting ring and at the cover to a carrier assembly of the second reduction gear assembly.

Abstract: A wheel and final drive assembly for a work machine, such as a mining truck, having a driven rotatable wheel having inboard and outboard rims mounted thereto. The final drive assembly including a first and a second reduction gear assembly. A ring gear adapter having an inboard end, an outboard end, and an inner surface, a plurality of teeth disposed about the inner surface and interacting with a plurality of planetary gears of the first and second gear reduction assemblies and the inboard end of the ring gear adapter removably coupled to the outboard flange of the wheel.

Abstract: In order to achieve a repair-friendly and maintenance-friendly arrangement with improved conduction away of heat to the outside in a wheel drive, in particular for mobile machines, having a carrying axle (2) which is mounted fixed in terms of rotation to the vehicle frame (1) and which is rotatably connected as a wheel hub to a ring gear (4) via a roller bearing arrangement (3a, 3b), the ring gear (4) being driven via at least one planetary gear mechanism (24) with drive-end sun wheel (16), and an integrated dynamic service brake (24) being provided between the ring gear (4) and the carrying axle (2), it is proposed that the service brake (24) be arranged within the ring gear (4) at the end directly behind a detachable gear mechanism cover (11) and at the outer radius on a hollow-cylinder-shaped brake carrier (10) which forms the end piece of the carrying axle (2) which is fixed in terms of rotation, and that the planetary gear mechanism (34) be arranged behind the service brake (24), viewed from the end, wit

Abstract: The invention relates to an electrical individual wheel drive having several electromotors (1) whose input power is combined by a spur gear assembly (2) and one rear-mounted planetary gear (3) which adapts the input torque and the wheel speed. The wheel bearings (4) are mounted axially between the electromotors (1) and planetary gear (3). One brake (7) is a pneumatically or hydraulically actuated disc brake and acts as service, parking, emergency and auxiliary brake.

Abstract: A final drive assembly for transmitting torque from a drive source to an output device is provided. The final drive assembly includes a non-rotatable housing, a rotatable shaft defining an outer surface, a gear assembly, at least one bearing assembly, and a bushing. The gear assembly is configured to be couple to the drive source. The gear assembly is coupled to the housing and coupled to the shaft through a rotatable member. The rotatable member is configured to transmit torque from the drive source to the shaft and to provide relative radial movement between the shaft and the rotatable member. The bearing assembly is coupled to the housing and configured to rotatably support the rotatable member. The bushing is radially disposed between the rotatable member and the outer surface of the shaft. The bushing, which is configured to transmit substantially all of an external load exerted on the shaft to the rotatable member, is fixedly coupled to one of the rotatable member or the shaft.

Abstract: A motor wheel for driving the driving wheel of an industrial vehicle and the like, comprising upstream of a two-stage rotary-ring reduction unit, a gearbox with fixed-ring epicyclic gear train, with at least two positions which respectively correspond to the high or travel speed and to the low or working speed. A parking brake is further provided downstream of the gearbox with respect to the motion input.

Abstract: A bus or truck having an engine, a transmission and a differential directly assembled to the frame and geared hubs assembled to a carriage frame to which the wheels of the vehicle are secured to provide the lowest possible floor height. The carriage frame supports the vehicle on air springs. Right and left geared hubs are directly assembled to the carriage frame and are operatively connected to the right and left half axles and the right and left wheel sets. The geared hubs provide a second level of gear reduction. The geared hubs are assembled to the wheel carriage frame with the axis of rotation of the drive axles and the axis of rotation of the wheels aligned in either a fore and aft direction or are aligned with the axis of the half axles being directly above the axis of the wheels. Air brakes on the drive axles provide braking action prior to the gear reduction of the geared hubs allowing for the use of smaller air disc brakes.

Abstract: A planetary transmission for a vehicle, comprising a planet carrier, on which at least one planet wheel is mounted, a hub arranged for a vehicle wheel and connected to the planet carrier, and a static housing which is connected to the vehicle and in which the hub is mounted. A friction brake is arranged at an outer periphery of the planet carrier and is intended to brake the rotation of the planet carrier in relation to the static housing. The hub and the planet carrier are interconnected by a splined connection. According to an embodiment, an outer gear ring is arranged so as to interact with the at least one planet wheel, which outer gear ring is connected to the static housing by a second splined connection.

Abstract: A differential drive train for driving two laterally opposite axially aligned driven units, for example wheel hubs, in the same rotational direction has a motor with a motor housing and motor shaft, with a shaft affixed to the housing so as to rotate in a direction opposite from the motor shaft. A planetary gear cluster is mounted adjacent an outer end of each of the shafts so as to provide a gear reduction between the shaft and an output gear. One of the planetary gear clusters drives its output gear, which is fixed to the driven unit, in a direction opposite from its input shaft. The input shafts extend through their respective planetary gear clusters so as to mount their respective driven units on bearings on the input shaft and drive the planetary gear cage. Between the motor and the planetary gear clusters, the input shafts extend through stationary tubes to which the stationary gears are affixed.

Abstract: A wheel mounting hub system includes a hollow stationary hub carrier with an inner surface and a rotating hub located radially within the stationary hub carrier throughout at least a portion of its axial length. A planetary gear train including a sun gear and planet gears mounted on webs formed on the rotating hub is located within the stationary hub carrier. The planetary gear train includes a ring gear located on the inner surface of the stationary gear carrier in mesh with the planet gears. Axially spaced annular roller bearings are located between the rotating hub and the inner surface of the stationary hub. Outer bearing races for the roller bearings are formed on the inner surface of the stationary hub carrier and inner bearing races are located on the outer surface of the rotating hub.

Abstract: A motor vehicle integral speed reduction and wheel mounting unit having a driven rotatable axle pivot member with axially spaced annular bearings mounted on the outer surface. An annular fixed axle housing has an inner surface mounted on the bearings. A ring gear is formed on the axial portion of the inner surface of the axle housing located between the bearings. Intermediate shafts are rotatably mounted in the axle pivot member and a gear is fixed on each intermediate shaft. Each gear is located partially within a radial recess formed in the axle pivot member. One end of each intermediate shaft extends out of the axle pivot member and is connected to a drive shaft by a planet gear fixed on the end of the intermediate shaft.

Abstract: A drive unit of a vehicle toy realizes a high-speed performance and a large-torque performance, is excellent in operability and provides improved battery life. In the drive unit, there is provided a motor gear driven by a radio-controlled motor, first and second drive gears for independently driving left-hand and right-hand wheels, first and second intermediate gears for causing the first and second drive gears to rotate at a lower speed, and an idler gear meshing with one of the intermediate gears to cause the first and second drive gears to rotate in opposite directions. A travelling gear assembly is rotatably driven by the motor gear to travel along a path between a forward position for forward vehicle toy drive and a turn position for vehicle toy turning, the travelling gear assembly directly driving the first and second drive gears in the forward position and driving the same gears through the first and second intermediate gears and the idler gear in the turn position.

Abstract: A drive wheel with a friction brake having a circulating coolant in which feeding and draining take place in a non-rotational axle pipe (1) and the ring-gear carrier (2), attached thereto, without the heated coolant flowing through a planetary transmission (19, 20) supported between a half-shaft (14) and a ring gear (13). The collant enters radially beneath the brake discs (11, 12), retained by a brake-disc carrier (15), into an collecting annular space (27) and is thrown outwardly by centrifugal force between the brake discs (11, 12). It is returned to a cooler, situated outside the area of the transmission, by a coolant drain pipe (24) in the external hub collar (7) of the ring-gear carrier (2). By providing different seals (5.1; 17.1; 17.2; 15.1) at the connecting points of the brake and the transmission, the mixing of the brake coolant with the transmission lubricant is prevented.