A vehicle that includes a first rotatable frame that includes a first wheel assembly and a second wheel assembly. The vehicle also includes a second rotatable frame that includes a third wheel assembly and a fourth wheel assembly. The vehicle further includes a base frame configured to support a weight-bearing load. The vehicle further includes an axle member engaging the first rotatable frame, the second rotatable frame, and the base frame, wherein the first rotatable frame is rotatable about the axle member relative to the base frame and independent of the second rotatable frame, and the second rotatable frame is rotatable about the axle member relative to the base frame and independent of the first rotatable frame.

A suspension system for a rear axle of a vehicle provided with a frame equipped with at least two side members, the suspension system connecting the axle to said side members and comprising a left side and a right side, each comprising an axle-holder assembly, a bellows, a leaf spring, first and second bars, and a torsion bar interposed between said left and right sides. The aforementioned elements of the suspension system being arranged to provide a functional layout having reduced costs and overall dimensions.

An axle hanger includes a web, a first flange extending in a first direction perpendicular to the web, and a second flange extending in the first direction perpendicular to the web, spaced from and parallel to the first flange. A first return extends from the first flange toward the second flange parallel to the web, and a second return extends from the second flange toward the first flange parallel to the web. The axle hanger is easier to install and access in the event a hanger spring needs replacement, and the hanger can be more stably secured to the axle.

A suspension system for a vehicle is provided. A linear regenerative suspension system that converts mechanical energy into storable electrical energy is also provided. The system utilizes pistons, one on each side of the vehicle, engaged with a vehicle body at a distal end and having a fluid chamber at the proximal end. The system further has a central chamber having a rod freely laterally moving therein. A fluid communicates between the central chamber and each piston fluid chamber. Upon nonlinear forces applied to the vehicle, the rod is urged in one direction or another. This urging applies force to the fluid in the central chamber, and in turn, to the piston in the corresponding side of the vehicle, urging the piston up and in turn urging the vehicle body up.

A wheel suspension for a vehicle axle of a two-track vehicle, having a wheel carrier carrying a vehicle wheel, which is able to be articulated to a vehicle body via a multi-link assembly, which multi-link assembly has a trapezoidal link in the form of a four-point link with two connection points on the body side and two connection points on the wheel carrier side. The trapezoidal link connection points on the wheel carrier side are designed with a higher elastic longitudinal compliance, that is, softer, than the trapezoidal link connection points on the body side.

A vehicle suspension link device including a link element with a first and a second connection locus, for connection of the link element to a vehicle support structure and to a vehicle axle respectively, and a sensor element for detecting a movement of the link element, the sensor element being attached to the link element at an attachment point located on a virtual straight axis joining the first connection locus and the second connection locus.

An independent suspension system for a vehicle includes: a steering unit configured to be controlled to adjust the steering angle of a wheel, a shock absorber engaged with the wheel and configured to absorb impacts applied to the wheel and including a first shock absorber and a second shock absorber, each of which arranged in a forward-rearward direction on opposite side surfaces of the wheel, and a link unit disposed between the shock absorber and the steering unit in order to vary the distance between the wheel and the steering unit. The link unit includes a first upper arm disposed between the first shock absorber and the steering unit, a second upper arm disposed between the second shock absorber and the steering unit, and at least one ground clearance adjustment unit engaged with the first and second upper arms in order to vary the distance between the first and second upper arms.

A motor vehicle includes a body, a wheel hub unit, an upright, which is fixed to the wheel hub unit, a fender, which is arranged to cover the wheel hub unit, and a suspension, which couples the upright to the body in a movable manner along at least one axis, which is transversal to a driving direction of the motor vehicle; wherein the suspension comprises at least one movable element, which is movable along said axis, and wherein the fender is carried by said element in a movable manner relative to the body.

A bushing includes a cylindrical body and a flange extending from the cylindrical body. The cylindrical body has an inner face defining a bore. The flange includes an outer rim and a face extending radially between the bore and the outer rim. At least one groove is formed in the face. The at least one groove extends from a first end intersecting the bore to a second end adjacent the outer rim such that grease supplied to the bore of the bushing is able to flow through the at least one groove.

A tag axle system for a concrete mixing vehicle including an axle including a right wheel assembly and a left wheel assembly, an actuator coupled to the axle to move the axle between a raised position and a lowered position relative to a vehicle chassis, a stabilizer mount plate structured to be coupled to the vehicle chassis, a stabilizer bar rotationally coupled to the stabilizer mount plate, a right stabilizer bar arm rigidly coupled to the stabilizer bar and coupled to the right wheel assembly, and a left stabilizer bar arm rigidly coupled to the stabilizer bar and coupled to the left wheel assembly.