The gear set assembly further comprises a plurality of meshed gears having an input gear mechanically coupled to the steering mechanism and an output gear integrally connected to the steering pivot mounted on a steering pivot.

The tilt axis is generally perpendicular to the steering axis thereof.

The wheel hub is mounted on a steering pivot shaft.

There is provided a steering pivot arrangement (12) having a pivot pin (16).

Each propulsion unit has a steering axis and a tilt axis.

A pivot member is pivotally mounted on the first said propulsion unit for pivoting about a first link axis, which is parallel to the steering axis.

The first and second steering links (20, 22) are mutually joined to a steering link unit (26) about a steering pivot (24) with a vertical axis of articulation (C).

The steering pivot points are joined by a rigid bar, the tie rod, which can also be part of the steering mechanism.

The steering pivot points are joined by a rigid bar, the tie rod, which can also be part

The at least one roller-wheel unit (14, 15) is rotationally mounted around a steering axis (18) on a chassis frame (45) of the road roller (10) and is connected to a middle piece (27, 35).

As the steering pivot can swing through 40° to either side, manoeuvrability is just as good as if the pivot was further back.

Caster is the angle of the steering pivot, measured in degrees, when viewed from the side of the vehicle.

Caster is the angle of this steering pivot, measured in degrees when viewed from the side of the vehicle.

The TEL is a massive fourteen-wheeled vehicle, six of which pivot for steering.

Caster is the angle of this steering pivot, measured in degrees, when viewed from the side of the vehicle.