Abstract: The differential for vehicles comprises a rotatable carcass (1) inside which are housed a pair of planetary gears (2) rotatably integral with the axle shafts of two of the wheels of the vehicle, and at least a pair of satellite gears (5) linked to each other and movable to each other, each of said satellite gears (5) being rotatably integral with one of said planetary gears (2), and it is characterised in that said satellite gears (5) are linked to each other by threaded cylinders (3) with inverted threads with the same pitch and diameter. It permits always the differentiation of rotation between the wheels.

Abstract: A differential (1) for a vehicle includes a differential case (2), side gears (5L, 5R) rotatably accommodated in the differential case (2), pinion gears (3, 4) engaged with the side gears (5L, 5R), and pinion gear shaft (50) inserted through the pinion gears (3, 4) to be supported by the differential case (2), in which the differential case (2) has pinion gear supporting portions (10, 11) for rotatably supporting the pinion gears (3, 4), respectively, the pinion gear shaft (50) has pinion gear supporting surfaces (50A, 50B) for rotatably supporting the pinion gears (3, 4), respectively, and the pinion gear supporting surfaces (50A, 50B) are disposed on a side of an axis line of rotation of the differential case (2) with respect to the pinion gear supporting portions (10, 11).

Abstract: A differential includes first and second case members that are attached to each other to define an inner cavity that receives a differential gear assembly. A first tapered roller bearing is associated with the first case member and a second tapered roller bearing is associated with the second case member. One of the first and second tapered roller bearings is inverted such that a defining taper diverges towards the differential gear assembly. The other of the first and second tapered roller bearings is non-inverted with a defining taper diverging in a direction that faces away from the differential gear assembly.

Abstract: A differential assembly for driving a pair of axle shafts includes a drive gear located in a housing and having at least one pair of symmetrically disposed slots formed therein. A pair of differential bushings are located in the housing on opposite sides of the drive gear. A pair of differential carriers extend through the drive gear, each carrier having its end portions engaged to notches formed in the differential bushings. The differential carriers further include a center key engaging the slots in the drive gear, whereby the carriers and bushings rotate with the drive gear. The interaction of the bushings with the carriers retains the carriers in engagement with the drive gear.

Abstract: A differential assembly includes a housing defining a space containing a volume of hydraulic fluid, the housing including interior surfaces. A gear that rotates in the housing includes surfaces that pass through the fluid as the gear rotates and on which the fluid is carried to the interior surfaces of the housing. A bearing located in the housing is supplied with fluid from a fluid path that hydraulically connects the interior surfaces and the bearing.

Abstract: The present invention discloses a differential housing and a method operable to form the differential housing. The method includes the step of disposing a member having an outer surface on a mandrel. The member in the exemplary embodiment of the invention is a ring that enhances the strength of the finished differential housing. The method also includes the step of cold-working a housing preform by flow-forming the inner surface of the housing preform into conformance with the mandrel and with the outer surface of the member after said disposing step. The member is disposed in situ as the housing preform is cold-worked to produce the finished differential housing.

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: A vehicle differential case is disclosed, the case having an interior and an exterior configuration which provides an increased internal volume for, among other things, lubricant for components of the differential mechanism, while at the same time providing excellent structural strength. Importantly, the weight versus stiffness ratio of the differential case so described is significantly improved compared to known differential cases.

Abstract: An electric damp controlled three-end shaft differential transmission including a revolving electro-mechanical installation disposed between both differential output ends to create vortex power generation effects or generator effects in differential operation to output power for producing counter torque damp; or when two revolving electro-mechanical installations being respectively adapted to both differential output ends, the higher power generated by the revolving electro-mechanical installation with higher power generation voltage drives the other revolving electro-mechanical installation with lower power generation voltage to regulate and control the torque ratio between both differential output ends.

Abstract: A differential pinion gear has a curved interior surface, defining a hole for a pinion shaft to be disposed therein. The hole is narrower at the center and wider at the ends. The interior surface may have a radius of curvature at the center of the hole that is larger than the radius of curvature at each of the ends of the hole. The hole may also include a chamfered portion at each end.

Abstract: It is an object of the present invention to provide a differential case for a vehicle and a differential device for a vehicle supplying sufficiently lubrication oil to a gear peripheral portion as a supported portion of a pinion gear in order to prevent a bonding of the gear peripheral portion of the pinion gear. The differential case or the differential device for the vehicle comprises a pair of pinion gear supporting portions 10, 11 supporting slidably a pair of pinion gears 3, 4, and a lubrication oil introducing portion 7, 8 provided around a peripheral portion of the pair of pinion gears 3, 4 to introduce lubrication oil into a clearance between sliding faces of the pair of pinion gears 3, 4 and pinion gear supporting faces 10a, 11a, 10b, 11b of the pair of pinion gear supporting portions 10, 11.

Abstract: A differential gear 1 for a vehicle comprises a differential case 2 having a pair of holes 9R, 9L for drive shafts, a pair of pinion gears 3, 4 supported by pinion gear supporters 10, 11 and a pair of side gears 5R, 5L engaging with the pinion gears 3, 4. A pair of thrust washers 6R, 6L is interposed between the backs of the side gears 5R, 5L and the inner peripheries of the holes 9R, 9L without radial movement.

Abstract: An axle assembly with an electric locking differential that can include a one-piece differential case and a locking device. The locking device includes a dog that is nonrotatably but axially slidably received into a pocket that is formed in an end of the differential case. An actuator is mounted on the differential case. Actuation of the actuator moves the dog into engagement with a second dog that is coupled to a side gear of the differential to thereby lock the side gear to the differential case.

Abstract: A plurality of pinion gears 4A, 4B which are rotatably held within a differential case 2, a pair of left and right side gears 6L, 6R disposed in meshing engagement with the pinion gears and connected to left and right axles, respectively, and thrust washers 16L, 16R interposed between the rear surfaces of the side gears and the internal surface of the differential case are provided. The differential case is of a one-piece type, and is formed with an opening 2b in its sidewall, which is used in assembling the pinion gears and the like. The internal surface of the differential case is formed with pinion gear holders 12A, 12B. The pinion gears are inserted, followed by the insertion of the side gears. The side gears are spaced from the pinion gears by an amount corresponding to the thickness of the thrust washers, and this allows the side gears to be inserted in following relationship with the pinion gears.

Abstract: A process for improving the durability of a differential, where the differential has a pinion shaft and a pinion, the pinion shaft having a surface that contacts the surface of the inner diameter of the pinion. The process comprises bonding to the surface of the pinion shaft or the pinion or both, in the region of the interface between the pinion shaft and pinion, a coating having both a lower coefficient of friction and higher seizure resistance than that of the substance of the pinion shaft when in contact with the substance of the pinion.

Abstract: A vehicular differential transmission device includes a case, an input shaft, a transmission ring, a differential gear set, an output shaft and a clutch. The case sleeves is disposed on the input shaft and the output shaft. The differential gear set, the transmission ring, and the clutch sleeve are disposed on the output shaft. The input shaft links the transmission ring which in turn links the output shaft, and the clutch corresponds to the transmission ring. When the clutch locks the transmission ring, the differential gear set outputs a steady speed, on the contrary, when the clutch unlocks the transmission ring, the output shaft outputs a differential speed by means of the differential gear set. The case has a cap for connection of the input shaft, or otherwise, the input shaft may be coaxial with the output shaft and fixedly connected with a chain wheel.

Abstract: A transverse differential and a welding method for its producing, in which a differential bolt and a differential case are fixedly connected to one movement-wise. For this purpose, a bolt/case welding is produced in which, material of a differential bolt is fused and is transported or entrained into the preferably likewise fused material of the differential case, and fused entrained material of a differential bolt is solidified in the region of the differential case.

Abstract: A power transmission device includes a housing, a differential assembly having a case and a bearing assembly rotatably supporting the case within the housing. A preload is applied to the bearing assembly along a load path. A shim is positioned in the load path with the bearing assembly. The shim is constructed at least in part from a material having a predetermined coefficient of thermal expansion such that the shim is operable to compensate for different rates of thermal expansion in the components within the load path to maintain a desired bearing preload or a range of operating temperatures.

Abstract: A differential having a differential case, a pair of side gears disposed in the differential case and a biasing element disposed between the side gears to force the side gears against the differential case, creating a torque bias between the side gears and the differential case. The torque bias may also include the torque bias between the biasing element and the side gears. In some embodiments, the differential may include washers disposed between the side gears and the differential case, so that the torque bias may be the sum of the bias created between the side gears and the biasing element, the side gears and the washer, and the washer and the differential case. In an alternative embodiment, the differential includes a pair of pinions rotatably engaging the side gears, wherein the biasing element applies a force to the pinion gears to create a torque bias on the pinion gears, thereby inhibiting the side gears from movement relative to each other until the pinion torque bias is overcome.

Abstract: A differential assembly with a first differential drive (15) having a differential cage (14) rotatingly drivable around an axis of rotation (A), a plurality of differential spur gears (17) rotating with the differential cage (14), and crown gears (18, 19) coaxial with the axis of rotation (A) and engaging the spur gears (17). A second differential drive (16) is arranged inside the first differential drive (15), and has a differential carrier (20), a plurality of differential gears (26) rotating jointly with the differential carrier (20), and sideshaft gears (27, 28) coaxial with the axis of rotation (A) and engaging the differential gears (26). The first crown gear (18) is connected in respect of drive to the differential carrier (20) of the second differential drive (16) and the second crown gear (19) is connected in respect of drive to a hollow shaft (22) extending coaxially relative to the axis of rotation (A).

Abstract: A lockable differential gear having an integral differential gear housing (1). The differential gear housing (1) has a plurality of apertures (8) located opposite one another. A number of the internal parts of the differential gear are mounted, during installation, within the differential gear housing (1) by passing through one of the plurality of apertures (8) during the assembly process. The plurality of apertures (8) generally remain open following the assembly process.

Abstract: A differential gear mechanism, of either the locking Cr limited slip type, including a gear case rotatably disposed within an outer housing and a mechanism to limit rotation of side gears relative to the gear case; this rotation limiting mechanism including a member which is axially moveable between a first position and a second position. The mechanism includes a sensor assembly and a sensor element disposed adjacent the gear case. The axially moveable member includes a sensed portion surrounding an annular surface of the gear case, and disposed between the annular surface and the sensor element, in one embodiment. Movement of the sensed portion corresponding to changes within the mechanism between unlocked and locked conditions results in the sensor assembly transmitting an electrical output. The vehicle control logic can know the condition of the differential mechanism and control certain other parts or functions of the vehicle accordingly.

Abstract: A differential mechanism includes a housing having a wall exposed to an open end and a pair of receptors defined in the wall. A lid is affixed to the open end forming an enclosure with the housing. The opposing gears are in driving engagement with one and the other and are disposed in the enclosure. A shaft is slidably disposed in the receptors extending through two of the opposing gears thereby supporting the opposing gears rotatable relative the housing. A retaining mechanism is defined between the shaft and at least one of the receptors forming a rigid connection therebetween to prevent movement of the shaft relative the housing.

Abstract: The drivetrain with multiple differentials includes a common side gear. The side gear has a cylindrical body with a central bore. Receiving members are on the bore to receive a shaft. An annular member is on the body with the bore extending through the annular member. A plurality of teeth is formed on an external surface of the annular member. A plurality of steps is formed in the wall defining the central bore. The steps extend towards the body from the annular member. A retaining mechanism, to retain the side gears on the shaft, is positioned in one of the plurality of the steps.

Abstract: A reversible transmission mechanism includes an input member rotatable about a fixed shaft and having a bevel gear, a first shaft member rotatable about the fixed shaft and having a shaft portion extending perpendicular to the fixed shaft, and a second shaft member rotatable about the fixed shaft and rotationally fixed to the first shaft member. An output member is rotatably mounted around the second shaft member and has a bevel gear at one end thereof axially facing the bevel gear of the input member. A planetary bevel gear is rotatably mounted around the shaft portion of the first shaft member so as to mesh with the bevel gears of the input and output members. The second shaft member is selectively coupled to and uncoupled from the output member by a clutch. When the second shaft member is uncoupled from the output member, the rotation of the second shaft member is stopped by a brake.

Abstract: A differential including axle pinions and pinion gears and a body having two parts between which the pinions are mounted. The two parts of the body are provided with complementary guiding surfaces for guiding the two parts in adjustment relative to one another along an input and output axis. One of the two parts includes at least two inner guides for slidably and adjustably mounting a rotatable assembly pin of the pinion gears such that when a relative position of the two parts is adjusted, an axial play of at least the axle pinions or a differential drag torque is adjusted afterwhich the two parts are locked relative to each other.

Abstract: An axle assembly for a vehicle includes a housing, a differential assembly rotatably supported within the housing, a differential cover and a gasket assembly positioned between the housing and the differential cover. The gasket assembly includes a body and a magnet coupled to the body. The magnet is positioned in communication with a lubricant located within the interior of the housing.

Abstract: An axle assembly that includes a differential casing, which is rotatable about an axis, a pair of side gears that are disposed within the differential casing, a spacer and a cross pin. The spacer is disposed between the side gears. The cross pin is fixed to the differential casing and extends through the spacer. The cross pin is employed to limit end play of the axle shafts in a direction toward one another. The aperture in the spacer that receives the cross pin is relatively larger than the cross pin so that the spacer can control end play of the side gears independently of the cross pin.

Abstract: A limited slip differential is provided with a rotatable casing for receiving input from an engine, a differential gear set of a bevel gear type and a pair of clutches. The differential gear set is provided with a pinion shaft supported in and rotated with the casing, a pinion gear rotatably supported by the pinion shaft and a pair of side gears for output, each of the side gears including gear portion engaged with the pinion gear. The gear portions are exposed to an internal surface of the casing so as not to obstruct oil circulation. The clutches are formed between the side gears and the casing and configured to frictionally transfer torque between the side gears and the casing.

Abstract: A differential mechanism includes a casing having two opposite ends each having a cover longitudinally mounted thereon. A rotator assembly is mounted in the casing and has a seat received in the casing. A shaft is diametrically mounted in the seat. Two differential gears are respectively rotatably mounted to two opposite ends of the shaft and are respectively engaged to a corresponding one of two drive gears that are respectively securely sleeved on a first drive axle and a second drive axle. An input coupling and an output coupling are respectively longitudinally mounted to the two opposite ends of the seat for centrally mounting the first drive axle and the second drive axle to two opposite ends of the seat. The input coupling is engaged to a transfer element.

Abstract: The invention relates to a torque transmission differential for motor vehicles comprising a casing which is selectively rotated around an axis y–y?; a drive wheel axle with an axis Y–Y?; a gearing which is disposed inside the casing and which transmits the rotation movement from the case to the drive wheel axle; and a muzzle which is solidly connected to the casing and which is disposed between the gearing and the internal surface of the casing The gearing generally lies within an ellipsoid of rotation and the muzzle is more or less in the shape of an ellipsoid of revolution which is concentric to the gearing.

Abstract: The application relates to a unitary case for a plurality of angular drives which comprises at least one bevel gear step with a first bevel gear and a second bevel gear, and which is provided for achieving various angles between a transmission input shaft and a transmission output shaft. The second bevel gear is coupled to the transmission output shaft in an indirect rotationally fixed manner. The unitary case is designed for a plurality of possible angular outputs wherein multiplication is substantially constant and the outer diameters of the individual bevel gears are substantially identical.

Abstract: A method is disclosed for making a differential housing having a ring gear integrally formed therein. The method includes the steps of forging a conical frustum from a steel rod; deforming the frustum between upper and lower die halves of a tool to produce a differential housing having an annular rim; and forging a plurality of teeth in the annular rim defining the rim gear.

Abstract: A steering transaxle comprises: left and right drive shafts drivingly connected to respective steerable wheels; a differential gear unit differentially connecting the drive shafts to each other; a transaxle casing having an opening and incorporating the differential gear unit and the drive shafts; a cover for covering the opening of the transaxle casing; a variable hydraulic motor having a movable swash plate; a motor control mechanism for controlling the movable swash plate; and a hydraulic oil port for oil supply and delivery to and from the hydraulic motor, the hydraulic oil port being provided on the outside of the cover. The hydraulic motor is provided on the inside of the cover, and the motor control mechanism is provided on the outside of the cover.

Abstract: A differential case (2) comprises a hollow shaft (2b) for transmitting the rotation of an output gear of a transmission to a transfer and houses a pair of pinions (4) and a pair of side gears (7R, 7L) which mesh with the pinions (4). The side gears (7R, 7L) comprising sleeves (8) which engage with front wheel axle shafts (101R, 101L). Plugs (12) which seal the sleeves (8) of the side gears (7R, 7L), a first oil seal (13) disposed between the hollow shaft (2b) and the sleeve (8) of one of the side gears (7R), a second oil seal (14) disposed between the hollow shaft (2b) and the differential housing (10), and a third oil seal (15) disposed between the differential housing (10) and the sleeve (8) of the other side gear (7L), stop oil filled in the differential casing (10) and differential housing (2) from flowing out.

Abstract: A lower cost differential gear assembly capable of inputting driving force through a differential gear, whose teeth have sufficient strength is provided. To achieve the object, the differential gear is constructed by engaging a gear part provided with teeth at equal intervals on one of its perimeter surfaces, and a support part pivotally supported by right and left axles through engagement of a spline. Accordingly, the gear part can be formed from a high strength material and the support part can be formed from a lower cost material.

Abstract: A power transmission device includes a housing, a differential assembly having a case and a bearing assembly rotatably supporting the case within the housing. A preload is applied to the bearing assembly along a load path. A shim is positioned in the load path with the bearing assembly. The shim is constructed at least in part from a material having a predetermined coefficient of thermal expansion such that the shim is operable to compensate for different rates of thermal expansion in the components within the load path to maintain a desired bearing preload or a range of operating temperatures.

Abstract: A thermally compensated differential comprises a housing, a pinion gear mounted into the housing, a differential case carrying a ring gear with the case being supported by a first roller bearing and a second roller bearing with the bearings being mounted indirectly, and the first and second roller bearings being contacted by adjustable spacers.

Abstract: An axle assembly that includes a differential casing, which is rotatable about an axis, a pair of side gears that are disposed within the differential casing, a spacer and a cross pin. The spacer is disposed between the side gears. The cross pin is fixed to the differential casing and extends through the spacer. The cross pin is employed to limit end play of the axle shafts in a direction toward one another. The aperture in the spacer that receives the cross pin is relatively larger than the cross pin so that the spacer can control end play of the side gears independently of the cross pin.

Abstract: A drive axle assembly for a motor vehicle comprises a support beam member, a differential assembly module secured to the support beam member and a cover member fastened to the support beam member to cover at least a portion the differential assembly module. The cover member includes two spaced access openings with adjustable sealing flange devices for sealing an interior cavity within the cover member between the access openings and corresponding axle shaft members. The sealing flange device is positionally adjustable relative to the cover member. A method for adjusting position of the sealing flange device relative to the cover member comprises the steps of securing the cover member to the axle support member, mounting the sealing flange device to the cover member, adjusting the position of the sealing flange device relative to the cover member and securing the sealing flange device to the cover member.

Abstract: An axle assembly includes a carrier housing having a deflector, a differential assembly, and an input shaft. The carrier housing has a main body and a pinion nose extending from the main body. The pinion shaft and the differential assembly are each rotatably supported by the carrier housing in driving engagement with one another. The pinion shaft extends through an aperture in the pinion nose. The deflector extends across at least a portion of an outer surface of the pinion nose to redirect contaminants from entering the carrier housing.

Abstract: The present invention provides an axle assembly for a motor vehicle including an axle housing, a differential assembly supported in the axle housing with a differential bearing, a bearing insert, an adjuster sleeve and a lock ring. The bearing insert is coupled to the axle housing. The adjuster sleeve is rotatably coupled to the bearing insert in a pre-installed position. The adjuster sleeve is adapted to engage the differential bearing and impart a preload force thereon. The lock ring is disposed between the bearing insert and the adjuster sleeve in an installed position. The lock ring precludes relative movement between the bearing insert and the adjuster sleeve thereby maintaining a desired preload on the differential bearing.

Abstract: A differential assembly includes a yoke, attached to a drive shaft, for driving a pinion head. The differential assembly further includes inner and outer pinion bearing assemblies, a separable mounting plate, and a cavity defined by a housing for receiving a pinion assembly. The outer pinion bearing assembly is integrally mounted to the housing, while the inner pinion bearing assembly is secured to the separable mounting plate. The pinion head is straddle mounted between the inner and outer pinion bearing assemblies.

Abstract: A differential having pinion bearings supported on the input yoke is provided. The differential includes a housing having an opening through which a pinion shaft extends. The input yoke is disposed about a portion of the pinion shaft and one or both pinion bearing sets are then disposed about the input yoke. This configuration reduces pinion standout and allows for installation of a pre-assembled bearing pack (i.e., without spacers or shims), but does not reduce the length of the splines on the input yoke or bearing capacity.

Abstract: A junction at which the pinion shafts are connected to each other by themselves is formed in a portion of the rotational axis of an outer rotary member where the pinion shafts meet each other. Therefore, the positional relation of the pinion shafts without any substantial error is reliably secured and maintained, and the uniform transmission of power to the pinion shafts becomes possible. Accordingly, the number of parts is reduced, and it is not necessary to give any heat treatment to the clutch tooth or select any material of high strength therefor.

Abstract: A lower cost differential gear assembly capable of inputting driving force through a differential gear, whose teeth have sufficient strength is provided. To achieve the object, the differential gear is constructed by engaging a gear part provided with teeth at equal intervals on one of its perimeter surfaces, and a support part pivotally supported by right and left axles through engagement of a spline. Accordingly, the gear part can be formed from a high strength material and the support part can be formed from a lower cost material.

Abstract: In a vehicle steering transmission device, a first gear is rotatable on a rotational axis to rotate in accordance with a vehicle steering operation, a second gear is rotatable on the rotational axis and connectable to a vehicle wheel so that an orientation of the vehicle wheel is changed, an intermediate gear engages with the first and second gears, a support member is rotatable on the rotational axis while supporting the intermediate gear in such a manner that the intermediate gear is rotatable on another rotational axis which another rotational axis intersects the rotational axis and extends perpendicularly to the rotational axis, and a driving device drives the support member to rotate on the rotational axis so that a differential rotational motion is generated between the first and second gears.

Abstract: An salisbury axle assembly that includes a differential gearset in a carrier housing. A housing cover is coupled to the carrier housing and is operable for sealingly closing a window on the carrier housing through which there is access to the differential gearset. The housing cover includes a cover member and a seal ring. The cover member includes a mating face and a plurality of raised connection points that are disposed between the carrier housing and the mating face The seal ring is coupled to the mating face and encircles each of the raised connection points. The seal ring further includes at least first and second ring members that are disposed between each of the raised connection points. The pre-attach seal ring sealingly engages the carrier housing and the mating face to a proper compression distance.

Abstract: A differential drive having a drive housing in which a differential carrier (14) is rotatably supported around its longitudinal axis (A). The drive has sideshaft gears (18, 19) which are supported so as to be rotatable relative to the differential carrier (14) around the axis (A), and differential gears (22) which are supported in the differential carrier rotatably around axes (R) extending radially relative to the longitudinal axis (A), which engage the sideshaft gears (18, 19) and which rotate together with the differential carrier (14). The differential carrier (14) forms journals (16, 17) which extend co-axially relative to the longitudinal axis (A) and by means of which the differential carrier (14) is rotatably supported in the sideshaft gears (18, 19) and wherein the sideshaft gears (18, 19), in turn, are rotatably supported in the drive housing.

Abstract: Vehicle differential with a differential housing (5) consisting of two pressed sheet metal halves (6). Each sheet metal half is made with radial, gutter-shaped depressions, which are limited at their outer ends by wall portions (14). A differential pinion shaft (15) is received in the depressions between the sheet metal halves. The wall portions (14) limit the axial movement of the differential pinion shaft.