Abstract:
The present invention relates to a vehicle provided with a sprung mass, including a vehicle frame, at least one axle provided with first and second ends, and a suspension system provided with a mechanical springs and leveling springs. The mechanical springs connect the axle ends to the frame and are provided with a spring rate in a rebound direction that is greater than or substantially equal to a spring rate in a jounce direction. The leveling springs are configured to support the sprung mass at one or more sprung mass load points, whereby the first and second mechanical springs may become substantially unloaded by the sprung mass of the vehicle at the one or more sprung mass load points.
Abstract:
A grease fitting adapter for lubricating a Hendrickson suspension of a vehicle. The adapter includes a bracket and a hose connected to the bracket. The hose has a first end with a fitting thereon to cooperate with a fitting in the Hendrickson suspension. The hose has a second end with a fitting thereon to receive the lubricant from a source of lubricant. The adapter is mounted on the Hendrickson suspension by a fastener connected to the bracket and is mounted such that the lubricant is introduced from the outer side of the vehicle. A retrofit kit and a method of lubricating the Hendrickson suspension is disclosed.
Abstract:
A suspension system for a vehicle having a longitudinal axis. The vehicle is provided with at least three pair of wheels, at least two of which are tandemly arranged and provided with means for steering. The tandemly arranged wheels are respectively sprung by a leaf spring parallel to the axis. Each leaf spring is located on opposite sides of the axis and nearer to the axis than to the respective wheels.