A rear axle for a two-track vehicle includes a first trailing arm, a first wheel carrier with a first wheel center and a first longitudinal strut, which form a first coupling mechanism that is effective in a longitudinal and/or a vertical direction of the vehicle. A second trailing arm and a second wheel carrier with a second wheel center and a second longitudinal strut form a second coupling mechanism that is effective in a longitudinal and/or a vertical direction of the vehicle, and a crossmember is firmly connected to the first trailing arm and to the second trailing arm and has a shear center. The first coupling mechanism has a first instantaneous center of rotation located on the front side and above the first wheel center, and the second coupling mechanism has a second instantaneous center of rotation located on the front side and above the second wheel center. A two-track vehicle having a chassis or an underbody includes such a rear axle arranged on the chassis or on the underbody.

A chassis component (16), with a first end section (17) and a second end section (18) and a connecting section (19) is arranged between the two end sections (17, 18). At least one ball joint (21) is associated with one of the two end sections (17, 18), and a sensor device (22) is associated with the ball joint (21). A first sensor element (23) of the sensor device (22) is arranged on the end section (18) that has the ball joint (21) and a second sensor element (24) is arranged on an inner joint component (25) of the ball joint (21). In order to avoid damage to the chassis component (16) and/or a disturbance-inducing factor for the sensor device (22) caused by a tensile or compressive load, the connecting section (19) has an elastically deformable zone (20) preferably in the longitudinal and/or the transverse direction of the vehicle.

A bush may include: a second inner pipe forming a central protrusion in a central section of the second inner pipe; and an outer pipe forming a third protrusion at a first inner side and a fourth protrusion at a second inner side. In particular, the third and fourth protrusions are arranged outside of the central protrusion.

Provided are a suspension bushing and a suspension device with which maneuvering stability can be improved without adversely affecting ride quality. Protrusions are formed on the outer circumferential surface of an inner tube, and slits are formed on the inner circumferential surface of an outer tube. The protrusions are arranged in the slits and have a tapered shape in which their width in a direction parallel to an axial line decreases as the distance from the axial line increases. The slits have a shape such that a gap in the direction parallel to the axial line decreases as the distance from the axial line increases.

It is disclosed a system for leveling of load between front and rear wheels on a trailer, consisting of a rubber-torsion axle FIG. D with longitudinal members 4 which center is pivotally mounted to the torsion axles pivot arms 7. With a wheel in each end of the longitudinal members, the system is working as a complete bogie unit which has vertical spring motion effect, as shown in FIG. B. For trailers with no need of such spring motion effect, the longitudinal members can be mounted direct to the inner tube 9 in the rubber-torsion element.

A rear axle suspension includes a holder for pivotable connection of a connecting portion of a semirigid axle to a vehicle superstructure. The holder is stationary relative to the vehicle superstructure and has a first and a second holding arrangement for an axle pin. The first and second holding arrangements are arranged on both sides of the connecting portion along a pin axis. In order to provide an optimized connection of a semirigid axle to a vehicle superstructure, the first holding arrangement has a stabilizing element with an arcuate portion. The arcuate portion, in the direction of the pin axis and tangentially, extends at least partially around the pin axis. The axle pin is mounted in the arcuate portion. Fixing portions are adjacent the arcuate portion on both sides and attach the stabilizing element to the vehicle superstructure.

A bush may include: a second inner pipe forming a central protrusion in a central section of the second inner pipe; and an outer pipe forming a third protrusion at a first inner side and a fourth protrusion at a second inner side. In particular, the third and fourth protrusions are arranged outside of the central protrusion.

Provided are a suspension bush and a suspension device that are able to achieve both steering operability and stability of a vehicle at the time of turning. A projection portion is formed on the outer circumference of an inner cylinder. A guide is formed on the inner circumference of an outer cylinder. In the guide, a slit is formed along an extending direction that includes: a component, in a parallel direction, which runs parallel with an axial line; and a component in a circumferential direction around the axial line. The projection portion is disposed in the slit, and a threaded mechanism is formed by the projection portion and the slit.

A vehicle component such as an axle spindle or suspension beam (3) is connected to a tubular vehicle axle (1) by fitting a connector sleeve (2) onto the axle and subjecting the assembly to a crimping operation in which plural depressions (206,2018) are formed by indentation in the connector sleeve and the axle wall at the connection region (11,12) to fix the connector sleeve on the tubular axle. In the described proposals a solid lubricant (4) such as molybdenum disulphide is applied at the connection region between the connector sleeve (2) and axle (1), before crimping. The further vehicle component (3) is then connected to the connector sleeve (2) by welding.

A trailing arm mounting bracket for connecting a trailing arm to a vehicle body includes: a fixing portion fixed to the vehicle body, a first connection plate and a second connection plate each extending from opposite ends of the fixing portion to support opposite ends of a mounting bush of the trailing arm and to which a fastening bolt fastened to the mounting bush is coupled, a first reinforcement portion to connect and reinforce the portions where the first and second connection plates and the fixing portion are connected with a truss structure, and a second reinforcement portion to connect and reinforce the first connection plate and the second connection plate at a position in the front of the mounting bush.