A vehicle suspension assembly includes an axle member, a pair of mounting brackets configured to couple to a vehicle frame, and a trailing arm arrangement that includes a first trailing arm portion having a first end pivotably coupled to one of the pair of mounting brackets, and a second end rotationally coupled with the axle member at a first position, a second trailing arm portion having a second end pivotably coupled to the other of the pair of mounting brackets, and a second end rotationally coupled with the axle member at a second position, and a first torsional member having a first end fixedly coupled to the first trailing arm portion and a second end fixedly secured to the axle member at a third position, the first torsional member configured to transmit torsion of the axle member to the first trailing arm portion.

The invention relates to a chassis for a utility vehicle, having a first .sup.J chassis element extending transversely with respect to the vehicle longitudinal direction and a second chassis element (5) fixed to the outer side thereof, wherein the second chassis element (5) is supported against the outer side of the first chassis element via at least one roughened supporting area (11, 12). In order to avoid relative movements between the chassis elements connected by clamping forces in a utility vehicle chassis, the roughening comprises a surface structure produced by machining the supporting area (11, 12) in a blasting process and preferably a laser beam process. The invention further relates to specific individual parts of such a chassis, specifically an axle shell, an axle guide (5), and a brake carrier.

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.

An embodiment relates to a mower having a chassis and a rear suspension assembly. The chassis supports a cutter deck. The rear suspension assembly includes a support, a drive axle, and a shock absorber. The support includes a pivot, and the pivot includes a bushing to allow pivotable motion relative to the chassis. The drive axle is supported by the support and is configured to transfer power to drive at least one wheel. The shock absorber is coupled to the support and the chassis. The at least one wheel and the drive axle are configured to vertically oscillate relative to the chassis.

An embodiment relates to a mower having a chassis and a rear suspension assembly. The chassis supports a cutter deck. The rear suspension assembly includes a support, a drive axle, and a shock absorber. The support includes a pivot, and the pivot includes a bushing to allow pivotable motion relative to the chassis. The drive axle is supported by the support and is configured to transfer power to drive at least one wheel. The shock absorber is coupled to the support and the chassis. The at least one wheel and the drive axle are configured to vertically oscillate relative to the chassis.

A tandem axle assembly includes a first slipper spring and a second slipper spring. The two slipper springs are configured or oriented in series with the slipper ends of the two slipper springs oriented toward each other. A keeper for a tandem axle suspension assembly is also disclosed.

An axle for heavy-duty vehicles, the axle comprising first and second grooves formed about the axle. The first and second grooves include a cross-sectional geometry that forms integrated annular fixturing locations about the axle for selectively mounting a component of a braking system.

An axle assembly that includes first and second hanger brackets and at least one cross brace. The first and second hanger brackets may be spaced apart from each other and may be adapted to be mounted to a chassis of a vehicle. The cross brace may extend from the first hanger bracket to the second hanger bracket.

An apparatus for a vehicle is provided that has an axle and a spindle sleeve with a spindle sleeve inner surface axis coaxial with the axis of the axle, and a spindle sleeve outer surface axis not coaxial with the axis of the axle. A hub has an axis coaxial with the spindle sleeve outer surface axis, and the hub at least partially defines a chamber. First and second ports extend through a wall of the hub to the chamber. The hub rotates about the spindle sleeve through the aid of two bearings. Lubricant is present within the chamber, and the first port provides a pathway for a pressurized fluid to be introduced into the chamber to force the lubricant out of the chamber via the second port.

A leaf spring suspension system for a vehicle includes a chassis rail. Also included is a pivot block operatively coupled to the chassis rail and rotatable relative to the chassis rail. Further included is a leaf spring operatively coupled to the pivot block proximate an end of the leaf spring. Yet further included is a half leaf spring operatively coupled to the pivot block proximate a first end of the half leaf spring and operatively coupled to a vehicle axle proximate a second end of the half leaf spring.