Abstract: A control rod suspension has at least one dampening structure having an outboard end and an inboard end. The inboard end is pivotally mounted to the vehicle frame. The outboard end is pivotally mounted to a king pin. A king pin rotatably connects the knuckle with a steer axle beam.

Abstract: A vehicle includes front and rear suspension systems. The vehicle includes front left and right strut assemblies respectively including front left and right knuckles. Rear left and right strut assemblies respectively include rear left and right knuckles. The knuckles are common with one another with each knuckle having a common lower attachment boss. The front left and right knuckles respectively receive front left and right connection members at the lower attachment boss. The lower attachment boss is respectively interconnected to the front left and right suspension components. The rear left and right knuckles respectively receive rear left and right connection members at the lower attachment boss respectively interconnected to rear left and right suspension components. The overall suspension for the vehicle is designed by determining the left knuckle position parameters such as suspension member, brake, and wheel assembly attachment points. Similarly, the right knuckle position parameters are determined.

Abstract: A method and apparatus for adding steering capability to a rear driven or non-driven axle is described. The invention utilizes many of the existing rear axle components, such as the upper control arm, lower control arm and knuckle. A gimbal is added to connect the lower control arm with the frame. A tie rod, or a slot and cam system, connects the lower control arm with at least one actuator to selectively turn the knuckle.

Abstract: A steerable element angular sensor system may include a sensor having a sensing axis positioned along an axis of rotation of a knuckle, a connector connecting a yoke and a knuckle of a steering system. The sensor may detect rotation of at least one of the knuckle and the connector. Also, the sensor system may include protection from rotation detection interference from linear and angular movements of at least one of the connector and the knuckle. The sensor system may be included within a steerable element assembly and provided within a vehicle.

Abstract: A two-wheel-drive sport all-terrain vehicle (ATV) has a front drive geometry in which the scrub radius is zero or negative combined with a low king pin axis angle, which desirably reduces both steering kickback and lateral pull during braking. The scrub radius less than or equal to zero can be achieved by outwardly displacing the king pin axis, which is defined by the upper and lower pivotal joints of the upper and lower A-arms of the front suspension. To displace the king pin axis outwardly, the disk brake and associated caliper are inverted. The disk brake is supported by support arms extending inwardly from the wheel hub. The disk brake includes an aperture to accommodate both the lower pivotal joint, which protrudes through the plane of the disk, and the inverted caliper. The front suspension further includes a knuckle pivotally connected to the A-arms and an integral aluminum spindle. For further compactness, the wheel hub includes angular-contact bearings.

Abstract: A steering knuckle assembly for a steering apparatus in a motor vehicle has an attachable and separable connector for ball joint connection between a tie rod and a knuckle. Therefore, the tie rod can be more easily separated from the knuckle at improved work efficiency, and the entire knuckle assembly does not have to be newly developed to change a ball joint point of the end of the tie rod. As a result, manufacture cost is greatly reduced and work efficiency for the steering knuckle assembly is improved.

Abstract: Independent wheel suspension for motor vehicles comprising: a wheel support (12) with a suspension movement and a steering movement, suspension movement guide devices including a steering element (16), elastic device (34) and shock absorbing devices (16, 26), and a control device (42, 44, 46, 40) of the wheel support steering movement. The wheel support (12) slides along steering element (16), which is slanted with respect to a vertical axis, and the steering movement control device comprises an electric actuator (42) controlled by an electronic control unit (50) arranged to correct the steering movements induced by the suspension movement.

Abstract: The present invention is an axle system having a steering capability. A series of links connect a knuckle with a vehicle chassis. The axis of the upper links converge to an upper point outboard of the knuckle. The axis of the lower links converge to a lower point outboard of the knuckle. A virtual steer axis of rotation for the knuckle is provided by a line connecting the upper point and the lower point. A steer link having one end connected to a steering mechanism and the other end connected to the knuckle is also provided.

Abstract: The present invention is particularly useful for lowering the front end of an automobile. The devices, methods, and systems of the present invention can find use in any variety of automobiles, such as trucks, sport utility vehicles (SUVs), passenger cars, and the like. The invention can be employed regardless of the type of suspension system in the automobile, and allows the vehicle to be lowered while retaining a maximum amount of travel. This is accomplished with a drop spindle having certain features such as a tap opening and a countersunk opening on the underside of the lower ball joint boss.

Abstract: A multi-piece steering knuckle having at least one boss which is adjustable in position along an axis of a king pin. More particularly, a steering knuckle including at least one boss which can be assembled, employing unique methodology, to minimize space tolerances between the steering knuckle boss and an axle. In preferred embodiments, a steering knuckle boss which can be installed by press-fit methods to be selectively positioned in a desired position along an axis of a king pin in a non-finite number of incremental positions. In another embodiment, a steering knuckle boss having, optionally, an inner wall composed of, at least in part, a nickel-aluminum bronze alloy.

Abstract: A steer axle and suspension assembly are provided that produce lateral stability in the vehicle without the use of a transverse rod and without generating undue loads on the steer axle beam. The assembly includes at least one suspension arm that is connected to the frame and to a component of the steer axle assembly such as the axle beam, kingpin, or steering knuckle. The suspension arm is connected to the steer axle assembly at a location outboard of the longitudinal frame rails of the vehicle and extends longitudinally at an angle to the frame rails. The suspension arm arrangement can be used with a variety of suspensions including leaf spring and multi-link suspensions.

Abstract: A steering unit of an electric vehicle is equipped with an electric motor having a tubular output shaft assembled so as to rotate around its own longitudinal axis, and a steering rod assembled through the output shaft and connected to the same output shaft by means of a screw-nut screw coupling so as to control the steering of a pair of wheels of the vehicle; the steering rod being equipped with a sleeve extending around the output shaft and having an internal thread connected to an external thread of the same output shaft.

Abstract: In manufacturing a knuckle body forged or cast from light alloy of a suspension device, a large vertical height of a pair of bosses protruding downward from front and rear ends in a lower portion of the knuckle body may cause degradation in forgeability or castability of the knuckle body to hinder manufacturing, and also cause reduction in rigidity of the bosses to reduce mounting strength of a lower arm support bracket made of ferrous metal. A vertical height of the pair of bosses of the knuckle body is set to be smaller than a vertical height of the lower arm support bracket, thereby improving forgeability or castability of the knuckle body and increasing rigidity of the bosses.

Abstract: An automotive suspension assembly 10 is provided, including an upper control arm 20, a lower control arm 22 and a knuckle 24. The lower control arm 22 is rotatably affixed to the knuckle 24 by way of a lower mount joint 29 rotatably engaging a lower rotational joint 28. The upper control arm 20 is rotatably affixed to the knuckle 24 by way of an upper mount joint 36 rotatably engaging an upper rotational joint 34, the upper mount joint 36 including an upper control arm shaft 38 positioned within a slotted guide 40 such that the camber is adjustable by adjusting the position of the upper control arm shaft 38 within the slotted guide 40.

Abstract: Arrangement for providing a steerable suspension to a vehicle wheel that includes a first bearing (1) and a second bearing (2) arranged at a supporting unit (3) in order to form a geometrical pivot axis (4) around which the vehicle wheel is journalled in bearings steerable in relation to the supporting unit. The supporting unit exhibits at least one supporting surface (8) and the first bearing exhibits an inner ring with an external. Radially directed surface (22) is arranged for abutting and resting against the supporting surface (8) in order to take up forces directed radially in relation to the geometrical pivot axis (4).

Abstract: An independent vehicle suspension includes a knuckle assembly supported by control arms or links. The knuckle assembly includes a forged, elongated steel spindle, one end of which includes a pair of axially-spaced radial flanges separated by a radially-enlarged shank portion. The knuckle assembly further includes an aluminum knuckle body defining at least one attachment point for the links. The knuckle assembly is formed by insert-casting the knuckle body about the shank portion of the spindle to thereby fully encapsulate the shank portion within, and at least partially encircle an axial portion of each spindle flange with, the as-cast knuckle body. A radial shoulder, for example, machined on the spindle's outboard end proximate to the outboard flange, axially supports the inner race of a bearing assembly, thereby advantageously reducing wheelend run-out. One or more peripheral flats on either spindle flange resists torsion, thereby allowing the machining of spindle surfaces after insert-casting.

Abstract: In a high-mounted double wishbone suspension device, an arm portion extending upward from a knuckle main body portion, through which an axle runs, is provided with a tie rod connection portion. A tie rod for turning a wheel is connected to the tie rod connection portion. The distance between the axle and the tie rod connection portion is increased to effectively suppress knuckle lateral vibration centered on the axle by the tie rod. Therefore, it is possible to reduce road noise without increasing the number of components or the weight. In particular, since the tie rod is connected to a joint provided on a lower face of the tie rod connection portion, it is possible to minimize vertical positional change of the tie rod, while suppressing lateral vibration of the knuckle by raising the position of the tie rod connection portion, whereby the arrangement can be easily applied to a conventional vehicle merely by replacing the knuckle alone.

Abstract: An automobile model comprising a pair of left and right rear wheels 21 which are independently driven by different motors 24, a pair of left and right front wheels 22, and a front wheel-supporting mechanism 30 which supports the front wheels 22 such that each front wheel 22 can turn around a predetermined steering axis AX and such that the front wheels 22 can turn in the same direction in association with each other, wherein the steering axis AX is inclined with respect to a vertical direction such that an upper portion of the steering axis AX is located rearward of a lower portion of the steering axis AX in a traveling direction.

Abstract: A multi-piece steering knuckle having at least one boss which is adjustable in position along an axis of a king pin. More particularly, a steering knuckle including at least one boss having a threaded surface for threading to a mating surface of a yoke arm, the threaded surface allowing the boss to be selectively positioned along an axis of a king pin in a non-finite number of incremental positions. In another embodiment, a steering knuckle boss having an outwardly threaded surface for threading to a mating surface of a yoke arm and having, optionally, an inner wall composed of, at least in part, a nickel-aluminum bronze alloy.

Abstract: A wheel suspension system for a vehicle having a body supported on a set of wheels each provided with a rim and an axle generally consisting of a lower control arm pivotally connectable to a first portion of such body; an upper control arm pivotally connectable to a second portion of such body; a roller bearing having inner and outer races, disposed within such rim, coaxially relative to the rotational axis of the rim; a steering plate mounted on the outer race of the bearing, having a first portion universally connected to the lower control arm and a second portion universally connected to the upper control arm, defining a steering axis intersecting the rotational axis of the rim; and a hub member mounted on the inner race and connectable to an axle receivable through an opening provided in the steering plate.

Abstract: There is provided a steering pivot arrangement (12) having a pivot pin (16). The pivot pin (16) provides an inner race section (17) providing an inner raceway (18). A roller cage (20) retains a number of tapered rollers (19) on the inner raceway. The cage (20) has a number of resilient inward projections (26) spaced around its periphery. The projections (26) are clipped into an annular groove (22) behind a roller abutment rib at the large end of the raceway (18).

Abstract: An auxiliary, power-actuated, pivotable wheel bearing unit is accommodated on a wheel carrier such that it can be pivoted about a pivot axis. An actuating element is attached to the bearing unit at a joint axis to pivot the bearing unit about the pivot axis. The axes are positioned with the pivot axis below the mid-axis of the bearing unit and the joint axis above the mid-axis.

Abstract: A strut for a vehicle suspension includes a hydraulic cylinder housing defining a hydraulic fluid chamber. The hydraulic cylinder includes an air passage adjacent to the chamber and separated therefrom by a first common wall. An air spring is supported on an upper portion of the cylinder housing in fluid communication with the air passage. An air reservoir extends from a portion of the cylinder housing and is in fluid communication with and fluidly connected to the air spring by the air passage. The air reservoir and the chamber are separated by a second common wall. The air reservoir preferably forms at least a portion of the knuckle, which supports the wheel end. In this manner, the knuckle and hydraulic cylinder are preferably integrated into one structure, preferably by a single cast unit. The integrated air reservoir and air passage reduces the size of the air spring and eliminates the need for a remote air chamber and associated hoses and fittings.

Abstract: A brake corner module includes a wheel bearing assembly which is configured to be coupled to the steering knuckle of the module without requiring bolts or press fit. An outer ring of the bearing assembly has a flange on one end which engages the knuckle at one end of a bore through the knuckle and a second end which is configured to be deformed to engage the second end of the knuckle bore. The wheel bearing assembly is thus captured within the bore, eliminating the need for press fit or a snap ring to retain the wheel bearing assembly.

Abstract: A modular axle assembly includes a first tube assembly and a second tube assembly interconnected by a center section. A number of different modular axle assemblies are constructed by using different center sections. For example, a non-driving axle includes a sleeve interconnecting first and second tube assemblies. A driving front axle includes a differential housing interconnecting the first and second tube assemblies.

Abstract: The present invention involves an integrated wheel end assembly for a wheel suspension of a motor vehicle. The integrated wheel end assembly comprises a rotor portion and a hub portion connected to the rotor portion. The rotor portion has a braking surface and an inside surface defining a center bore formed therethrough. The hub portion is disposed in the center bore circumferentially connected to the rotor portion and has inboard and outboard sides. The hub portion has a plurality of extensions radially extending therefrom to radially connect the rotor portion about the hub portion. The hub portion has an inner joint wall formed therethrough having a contour to define a joint bore for torque transfer about an axis. The hub portion has a collar extending from the inner joint wall at the inboard side. The collar has inner and outer sides. The outer side has an inboard inner raceway to house bearings. The inner side defines a receiving bore for rotation about the axis.

Abstract: A truck/or vehicle corner module (51) comprises a knuckle (1) and a kingpin (53), which is rotatable with respect to the knuckle (1), said kingpin (53) being provided with means for immovable connection (55, 58) to the fork shaped end (34) of a vehicle suspension (35). The kingpin (53) has opposite ends (55), which are to bear against and fixed between the facing surfaces (56) of the teeth (32, 33) of the fork shaped end (34).

Abstract: A steering knuckle assembly for a steering apparatus in a motor vehicle has an attachable and separable connector for ball joint connection between a tie rod and a knuckle. Therefore, the tie rod can be more easily separated from the knuckle at improved work efficiency, and the entire knuckle assembly does not have to be newly developed to change a ball joint point of the end of the tie rod. As a result, manufacture cost is greatly reduced and work efficiency for the steering knuckle assembly is improved.

Abstract: A vehicle transmission comprising a vehicle chassis (10), a hub unit (20) for a driven wheel; a chassis mounted drive motor assembly (11) individual to the hub unit and pivoted to the chassis about an axis (12) passing through or adjacent to the center of gravity of the motor assembly; a shaft assembly connecting the drive motor assembly to a rotatable part (25) of the hub unit and comprising a shaft (31) connected to a fixed, constant-velocity, universal joint (26) at the outboard end of the shaft which is drivingly connected to the rotatable part of the hub unit; a wheel suspension (22, 23) connected between a non-rotatable part (21) of the hub unit and the chassis (10); and a rigid tube (19) connnecting the non-rotatable part of the hub unit to the motor assembly, the non-rotatable part (21) of the hub unit being pivotally mounted with respect tot the tube about the center of articulation of the universal joint and the shaft lying within said tube and being rigidly connected to the motor assembly.

Abstract: A steering knuckle assembly for vehicles includes a connector for connecting a tie rod to a knuckle body via a ball joint is freely attached to and detached from the knuckle body. In the case of changing a ball joint point at a terminal end of the tie rod, only the connector is separately developed and then mounted on the knuckle instead of developing a new knuckle structure, thereby reducing fabrication cost as well as improving workability.

Abstract: The present invention is particularly useful for lowering the front end of an automobile. The devices, methods, and systems of the present invention can find use in any variety of automobiles, such as trucks, sport utility vehicles (SUVs), passenger cars, and the like. The invention can be employed regardless of the type of suspension system in the automobile, and allows the vehicle to be lowered while retaining a maximum amount of travel. This is accomplished with a drop spindle having certain features such as a tap opening and a countersunk opening on the underside of the lower ball joint boss.

Abstract: A snowmobile is described having a frame with left and right sides with left and right suspension assembly disposed thereon. Left and right spindles are connected to the left and right suspension assemblies. A left ski is pivotally attached to the left spindle and a right ski is attached to the right spindle. Rotation of the left and right spindles alters the ski stance of the snowmobile. The stance may also be altered in other ways, which are also disclosed.

Abstract: A steering linkage assembly for a motor vehicle has a tie rod and a drag link connected to a steering knuckle in an over/under arrangement, with first and second ball joints for the drag link and the tie rod respectively on opposite sides of the steering knuckle and having a common axis that is located within an interior volume of a wheel supported by the steering knuckle. The coaxial, over/under configuration results in a ball joint assembly having a minimum axial dimension so that both ball joints can be located inside the inner rim of the wheel and as far outboard and as far forward as possible. The extreme outboard placement of the drag link ball joint maximizes the length of the drag link to reduce bump and roll steer sensitivity, and the forward placement maximizes the effective steering arm radius to reduce steering linkage loads while also improving packaging.

Abstract: A vehicle steering system is configured to avoid contact between wheels and wheel housings when the wheels are steered and to enlarge the maximum steering angle. The vehicle steering system has a steering knuckle that supports a wheel for rotation about a wheel axis and a pivotal movement about a steering axis. The steering knuckle is coupled to a first end part of an extension link. A second end part of the extension link is connected to an arm through a control rod. The extension link is pivotally sustained around a steering axis. The arm is connected to a front end of a knuckle arm through a tie rod. When the arm turns, the second end part of the extension link is pulled inside through the control rod, and the steering knuckle situated on rear end of the control rod is pushed outwardly. At the same time, the arm steers the steering knuckle through the tie rod.

Abstract: A kingpin is provided for use on a trailer in a system with the tractor linked to a trailer. The kingpin includes a shank and a selectively deformable head, whereby during a trailer rollover event, the kingpin head deforms allowing the link between the tractor and trailer to be broken and the tractor to remain upright.

Abstract: According to the present invention, a steer-axle assembly includes sealant compressible shim fills a gap between an axle segment and a steering knuckle assembly that surrounds the kingpin. The sealant compressible shim has a first substantially rigid shim layer disposed about the kingpin body and in contact with the upper receiving portion of the steering knuckle assembly, a second substantially rigid shim layer disposed about the kingpin body and in contact with the axle segment, and at least one compressible shim layer between the first and second substantially rigid shim layers.

Abstract: In a steering knuckle pin bearing of an axle of a vehicle, in particular a commercial vehicle, for mounting a vehicle wheel on a vehicle chassis, wherein a wheel-side bearing element is mounted pivotally on a chassis-side bearing element and one of the bearing elements has a jaw structure in which two bearing bores are formed while the other bearing element has a stub which protrudes into the jaw structure and on which two bearing journals are formed which are mounted in the bearing bores via bearings, the one bearing bore is closed by a screw cap which interacts with a thread and on which the bearing is supported axially, with the screw cap being adjustable to an extent such that a predetermined relative axial position can be set between the bearing elements and the other screw cap being adjustable for setting a predetermined moment of friction between the bearing elements.

Abstract: An auxiliary, power-actuated, pivotable wheel bearing unit is accommodated on a wheel carrier such that it can be pivoted about a pivot axis. An actuating element is attached to the bearing unit at a joint axis to pivot the bearing unit about the pivot axis. The axes are positioned with the pivot axis below the mid-axis of the bearing unit and the joint axis above the mid-axis.

Abstract: A steerable suspension system having a composite axle beam. In a described embodiment, a suspension system includes an axle assembly which has an axle beam made of composite material. King pin receivers may be formed in devices attached at opposite ends of the axle beam. The devices may be made of metal or composite material. The king pin receivers may alternatively be integrally formed with the axle beam.

Abstract: A steering knuckle assembly is provided that includes an axle beam having an end with spaced apart first and second surfaces and a hole extending therebetween. A knuckle includes spaced apart first and second cavities that have first and second bores respectively adjacent to the first and second surfaces. A pin assembly is disposed in the hole. That pin assembly includes first and second ends, one of which may be a knot and the other, which may be a head. The ends are disposed within the cavities to secure the knuckle to the axle beam end. First and second bearing assemblies are disposed within first and second bores and about the pin. The bearing assemblies engage the surfaces when the nut is tightened on the pin body to produce a compressive force urging the bearing assemblies into engagement with the surfaces of the axle beam.

Abstract: The present invention relates to a thrust bushing formed in such a way as to maximize its lubrication during use to minimize its wear. Broadly, at least one surface of the bushing is formed with grooves that extend between its central aperture and its outer diameter to allow the free flow of lubricant between the two and thus lubricate the entire bushing surface of the thrust bushing as it rotates during steering. The grooves may take a variety of forms such as radially extending rectangular grooves or spiral grooves to better spread lubricant over the entire bushing surface. The bushings may be imposed directly between the axle and the lower yoke or may be packaged in a cartridge between a pair of discs to provide a self-contained, well-lubricated package.

Abstract: A steering knuckle assembly provides a tapered roller bearing on the bottom and a needle bearing on the top of a king pin. A spring cap preloads the tapered roller bearing. The king pin includes a step on the upper portion to transfer the spring cap preload force to the top of an axle beam.

Abstract: A vehicle suspension system wherein the main attachment to the chassis of the steering and suspension components is by the king pin mounting. The suspension system includes a first member attached directly to a shaft rotating with the chassis attachment; a second member attached to the first member by a swivel joint or a bush, allowing vertical movement of a stub axle attached solidly to the second member; and a third member attached to the first member which acts as the steering arm connection and load transference support for the forth member, a telescopic shock absorber and spring unit. The stub axle being at right angles to the king pin. Use of the suspension system allows a lessening or elimination of the toeing in or out of the wheels which commonly occurs with the vertical movement of the wheel.

Abstract: A steer axle assembly is provided having an axle beam disposed about a longitudinal axis and an inverted knuckle yoke. The yoke includes a body portion that is affixed to an external surface of the axle beam by welding. The yoke further includes first and second arms extending from the body portion. Body the body portion and arms are disposed one side of the axis extending through the axle beam. The drop of the axle is varied by varying the length of the body portion of the knuckle yoke.

Abstract: A wheel suspension of a motor vehicle includes a wheel carrier which is connected to the vehicle body via wheel-guiding and wheel-steering components and which carries, by rolling-bearing mounting, at least one wheel via a wheel hub. For this purpose, the wheel carrier includes a vehicle-body-side and a wheel-side wheel-carrier part. The vehicle-body-side and the wheel-side wheel-carrier parts are connected via a sliding joint or pivot joint so as to be movable relative to one another, the wheel-carrier parts having a preferential position in relation to one another. The direction of relative movement between the vehicle-body-side and the wheel-side wheel-carrier part extends approximately in the direction of travel or in the opposite direction to the direction of travel. Moreover, between the wheel-carrier parts elements are arranged which reverse the joint movement and which return the wheel-carrier parts in the direction of the preferential position.

Abstract: King-pin assembly with a sensor (24), the King-pin assembly (5) comprising a Kingpin (12), an axle frame (10), a spindle (14) and a bearing (15) for moveably mounting the spindle (14) to the axle frame (10) using the King-pin. The King-pin assembly further comprises a spacer (1) for holding the axle frame (10) at a predetermined distance from a bearing inner ring (20). A housing (2) is attached to the spacer (1), the housing (2) comprising at least a first part (3) of the sensor (24), a second part (4) of the sensor (24) being fixedly attached to the spindle (14).

Abstract: A steering assembly is provided that incorporates a system for controlled damping of vibration between a steering knuckle and tie rod end. A bushing formed from a damping material is inserted within an aperture formed in a tie rod arm of the steering knuckle. The shank from a ball stud member of a tie rod end is then inserted through the aperture and through a spring washer. The combination of the bushing and spring washer reduces and/or eliminates transmission of vibration from the steering knuckle to the tie rod end.

Abstract: An improved steering axle provides an improved interface between the steering knuckle kingpin and the axle. The axle includes distal ends, each formed into a boss with a central bore configured to receive the kingpin of a knuckle assembly. The boss has an improved structure that includes first and second axially extending and angularly spaced ribs each defining an axial portion having increased thickness. Each rib extends angularly from a location longitudinally outboard of the bore axis to a location longitudinally inboard of the bore axis. The boss provides increased rigidity in the area surrounding the kingpin, thereby improving retention of the kingpin and preventing motion between the kingpin and the boss.

Abstract: A truck corner module comprises wheel carrying means with an axle stub (42) and a kingpin arrangement (1,2,8,34) for supporting the axle stub (42) with respect to a truck axle (30), said kingpin arrangement (1,2,8,34) being provided with base member (2) which carries a lower kingpin (3) support and an upper kingpin support (34) which are spaced apart, at least one o the kingpin (3,34) supports being a separate component being intended for assembly with the base member (2) and the kingpin (28) after bringing said kingpin (28) and base member (2) into their normal position with respect to each other.

Abstract: A truck corner module comprises a wheel carrying unit (1) provided with an axle stub (3) and a kingpin arrangement (4), and is characterized by an auxiliary unit (2) mounted onto the wheel carrying unit (1), said auxiliary unit (2) being provided with at least parts (29) for a brake means. The axle stub (3) is integrally formed with the kingpin arrangement (4).