This axle beam is provided with a pair of horizontal plate sections separated vertically from and facing each other; and a vertical plate section extending vertically so as to connect intermediate sections, in a front-rear direction, of the pair of horizontal plate sections. The horizontal plate section on the upper side has a forwardly extending upper front plate section and a rearwardly extending upper rear plate section, and the horizontal plate section on the lower side has a forwardly extending lower front plate section and a rearwardly extending lower rear plate section. One of the upper front plate section, the upper rear plate section, the lower front plate section, and the lower rear plate section is set to have a smaller length in the front-rear direction than the other three plate sections, and among the other three plate sections, the two plate sections which are separated vertically from and facing each other are set to have substantially the same length in the front-rear direction.

A rear axle assembly designed to fit within a predefined rear axle envelope of a transportation vehicle. The rear axle assembly comprising first and second double wheel hubs each supporting a pair of tires, a rear axial offset with respect to a central axis of the rear axle assembly, a rear axle input for receiving a drive input, first and second portal housings which facilitate respectively connecting the rear axial the first and the second double wheel hubs, a four-point control arm for connecting the rear axle to a chassis, first and second spring carriers each carrying a smaller and larger diameter air bellows, first and second longitudinal arms which interconnected the rear axle to the chassis, and first and second shock absorbers each located generally at or adjacent to the central axis and radially between the first double wheel hub and the first spring carrier.

A portal-axle of bogies for light rail vehicles, such as for example trams or light rail metros with street running, is described, the light rail vehicles being characterized by a floor, i.e. a walking surface, lowered with respect to the rails. The portal-axle comprises two shoulders equipped with spindles for mounting wheels and with a central portion for structurally connecting the shoulders. Unlike conventional solutions, the central portion is not made by casting or forging, but advantageously is simply defined by at least two bars coupled thereto during the assembly. The bars are easily available on the market at low cost, have lower weight with respect to a traditional forged/cast component and allow modularity and versatility in dimensioning the portal-axle to be obtained.

A final transmission for agricultural and industrial motor vehicles. The transmission includes a differential unit having a support structure and a differential that transmits an input motion to an intermediate transmission shaft and a transfer unit with a final shaft that transmits the motion to the driving wheel. The final transmission also has a toothed output wheel integral to the intermediate transmission shaft which engages respectively with an internally toothed crown wheel and with an intermediate toothed wheel, and also at least one toothed support wheel which engages with the internally toothed crown wheel and with the intermediate toothed wheel.

The invention is directed to a portal axle for low-slung vehicles, comprising a portal housing 1, 1 into the interior 2 of which is guided proceeding from an axle bracket side a drive shaft 17 on which a drive wheel 3 is arranged so as to be fixed with respect to rotation relative to it, with intermediate wheels 4 which are rotatably mounted on bearing pins 12 in the portal housing 1, 1 and which can be rotatably driven by the drive wheel 3 and by means of which an output wheel 5 which is arranged in the portal housing 1, 1 on an output shaft so as to be fixed with respect to rotation relative to it can be rotatably driven, this output wheel 5 projecting into a hub carrier 6 which can be fixedly connected to the portal housing 1, 1. The drive shaft 17 and the output shaft extend so as to be axially offset, and a brake caliper of a disk brake is arranged radially adjacent to the portal housing 1, 1. The portal housing 1, 1 has on its axle bracket side a mounting orifice 9 which can be closed by a closure part and through which the drive wheel 3 and the intermediate wheels 4 can be inserted into the portal housing 1, 1, wherein the intermediate wheels 4 have a larger diameter than the output wheel 5.

A low-floor electric axle assembly including: an axle housing, two hub motors, two planetary gear reducers, two hubs, a brake system, two C-shaped beams, and a suspension system. Mechanical mounting of the suspension system is compatible with a conventional axle. The axle housing has a left and right symmetrical dumbbell-shaped structure configured to bear a weight of a vehicle. The hub motors are inner rotor type motors and are separately arranged at two ends of the axle housing left and right symmetrically. The hub motors are arranged coaxially with two wheels respectively. Two hub motor rotors are connected to the planetary gear reducers respectively. Each of the planetary gear reducers is a single-stage planetary gear reducer. A sun gear of each of the planetary gear reducers receives power outputted by each of the hub motor. Two planetary gear reducer housings are power output ends connected to two rims respectively.

A method and apparatus for adapting a vehicle rear suspension wherein the apparatus comprises a substantially circular plate having first and second surfaces with a central bore therethrough and with closed and open notches extending into a circumferential edge thereof, a pair of outer mounting bores extending through the plate proximate to the circumferential edge with the closed notch therebetween and a plurality of first and second inner mounting bores distributed around the central bore. The method comprises removing a multi-link rear suspension assembly from the vehicle and removing left and right wheel assemblies from the multi-link rear suspension assembly mounting an adaptor plate to each of the left and right wheel assemblies on an inside surface thereof with a first set of fasteners, mounting an axle beam of a torsion bar rear suspension assembly to each of the adaptor plates with a second set of fasteners and securing the torsion bar rear suspension assembly to the vehicle.

An air disc brake system for a heavy-duty vehicle comprising an axle. A spindle is attached to an end portion of the axle. At least a portion of an air disc brake assembly is supported by the spindle. A suspension beam has an axle support portion connectable with the axle. An end portion of the suspension beam is spaced from the axle support portion for attachment with the heavy-duty vehicle. The suspension beam may pivot about the end portion of the suspension beam. An actuator actuates the air disc brake assembly. The actuator has a movable member to actuate the air disc brake assembly. Structure is associated with the suspension beam for supporting at least a portion of the actuator. A surface defines an opening in the suspension beam through which the movable member may extend or that may receive and support a portion of the actuator.

The invention is directed to an inverted portal axle (1) for use in a low floor bus comprising two hub carriers (2a, 2b) connected by an axle bridge structure (4). Each hub carrier (2a, 2b) comprises a stator of a direct drive electric motor (6) and carries a rotary assembly (7) comprising a flange (8) to support a rim (9) for a single tyre (10). The hub carrier (2a, 2b) comprises a first part (12) which is laterally positioned within the rim and a second part (13a, 13b) which is laterally positioned next to the rim. The rotary assembly (7) is comprised of a wheel hub shaft (15) which is laterally positioned within the rim and tyre combination and a second part (14) which is laterally positioned next to the rim and tyre combination. The second part (13a, 13b) of the hub carrier comprises the stator (19) and the second part of the rotary assembly comprises a rotor (17) of the electric motor (6).

A final transmission for agricultural and industrial motor vehicles. The transmission includes a differential unit having a support structure and a differential that transmits an input motion to an intermediate transmission shaft and a transfer unit with a final shaft that transmits the motion to the driving wheel. The final transmission also has a toothed output wheel integral to the intermediate transmission shaft which engages respectively with an internally toothed crown wheel and with an intermediate toothed wheel, and also at least one toothed support wheel which engages with the internally toothed crown wheel and with the intermediate toothed wheel.