The present invention concerns an axle unit comprising a stub axle and an axle tube, wherein the stub axle has a longitudinal channel which extends inside the stub axle substantially along a stub axis, wherein the stub axle has a transverse channel which extends inside the stub axle substantially transversely to the stub axis and opens to the environment at the outer face of the stub axle, wherein the longitudinal channel and the transverse channel are connected together, wherein the stub axle has a stub joining region to which the hollow-bodied axle tube can be secured.

The present invention concerns an axle unit comprising a stub axle and an axle tube, wherein the stub axle has a longitudinal channel which extends inside the stub axle substantially along a stub axis, wherein the stub axle has a transverse channel which extends inside the stub axle substantially transversely to the stub axis and opens to the environment at the outer face of the stub axle, wherein the longitudinal channel and the transverse channel are connected together, wherein the stub axle has a stub joining region to which the hollow-bodied axle tube can be secured.

An axle unit includes an axle tube and a suspension arm element, wherein the axle tube extends substantially along a tube axis, wherein the suspension arm element has a first joining region comprising a recess, wherein the first joining region of the suspension arm element is adjacent to the axle tube, wherein the suspension arm element is substantially transverse to the tube axis, and wherein a weld portion between the suspension arm element and the axle tube is located in the first joining region.

An axle unit includes an axle tube and a suspension arm element, wherein the axle tube extends substantially along a tube axis, wherein the suspension arm element has a first joining region comprising a recess, wherein the first joining region of the suspension arm element is adjacent to the axle tube, wherein the suspension arm element is substantially transverse to the tube axis, and wherein a weld portion between the suspension arm element and the axle tube is located in the first joining region.

Axle system for use in utility vehicles includes a suspension arm and a clamping unit, wherein the clamping unit has a base element and a clamping element, wherein the base element is substantially arranged on a first side and the clamping element on the second side of the suspension arm lying opposite the first side, wherein the base element is configured to be secured to an axle element, and wherein a tensile element is configured to apply a tensile force between the clamping element and the base element, such that the suspension arm is held by force fit between the clamping element and the base element.

Axle system for use in utility vehicles includes a suspension arm and a clamping unit, wherein the clamping unit has a base element and a clamping element, wherein the base element is substantially arranged on a first side and the clamping element on the second side of the suspension arm lying opposite the first side, wherein the base element is configured to be secured to an axle element, and wherein a tensile element is configured to apply a tensile force between the clamping element and the base element, such that the suspension arm is held by force fit between the clamping element and the base element.

A replaceable replacement spindle assembly for both drive (tractor) axles and trailer axles comprises a spindle and seal ring. The spindle is an elongate cylinder having inner and outer bearing surfaces and a threaded portion at one end. The seal ring is a short annular or tubular component having a circular opening sized to achieve an interference fit on a portion of the spindle adjacent the inner bearing surface. The interfering surfaces of the spindle and the seal ring are complementarily dimensioned and tapered so that the surfaces contact when the spindle is properly positioned in the seal ring. Adjacent the end of the spindle opposite the bearing surfaces and threads is an end region with features such as openings or a channel which receive complementary fasteners such as plugs, short bolts or a through bolt.

A hub lock nut assembly for retaining a vehicle wheel hub in position. The hub lock nut assembly comprises a hub lock nut and a mating component. The hub lock nut comprises a circumferential inner wall defining a central hole, the inner wall having a threaded portion separated into a first section and a second section by an annular groove, thereby configuring the second section as a resilient portion arranged to flex with respect to the first section in an axial direction. The mating component comprises an inner wall defining a central hole extending in the axial direction, an annular end surface, and a protrusion on the annular end surface. The protrusion is configured to exert a force on the second section of the hub lock nut threaded portion, in the axial direction, when in the mated position, thereby retaining the vehicle wheel hub in position.

A hub lock nut assembly for retaining a vehicle wheel hub in position. The hub lock nut assembly comprising a hub lock nut and a mating component with which the hub lock nut is arranged to be mated in a mated position. The hub lock nut comprises a circumferential inner wall defining a central hole, the inner wall having a threaded portion. One of the hub lock nut or the mating component comprises at least one resilient portion adapted to be movable in a radial direction outwardly of the central hole when subjected to an external force provided by the other of the mating component or the hub lock nut. The at least one resilient portion having an engagement area for receiving said external force, wherein the engagement area is located radially outwardly of the threaded portion.

This disclosure is directed towards a chassis system and more particularly to a spindle cross member for the chassis system which is suitable for an articulated vehicle. At least one of the cross members of the chassis system is spindle cross member comprising a main member, having a middle section and tubular end sections. The middle section has an at least partially curved middle section wall which defines a cavity with an opening for receiving a head of a suspension frame of the chassis system. The tubular end sections are located at each end of the middle section located along a longitudinal axis of the spindle cross member. The spindle cross member further comprises means for pivotally attaching the head of the suspension frame to the middle section wall within the cavity.