Torsional suspensioned, steerable, oscillating and propelling axle assembly

An axle assembly for an all-terrain vehicle or a machine comprising:

• a torsion assembly that mounts to a frame of the all-terrain vehicle or the machine providing independent suspension of an individual track unit;
• a vertical bearing cylinder providing support and guidance of a steering shaft;
• vertical bearings that install in the vertical bearing cylinder providing smooth rotation of the steering shaft;
• thrust bearings installed at upper and lower ends of the vertical bearing cylinder contributing to smooth rotation of the steering shaft;
• a steering arm that receives linear actuation to rotate the steering shaft;
• the steering shaft receiving rotational force from the steering arm to rotate the track unit left or right for turning of the all-terrain vehicle or the machine;
• retainers that provide proper thrust bearing preload and retaining of the steering shaft;
• a horizontal bearing cylinder providing support and guidance of a horizontal driven shaft;
• insert bearings that install in the horizontal bearing cylinder providing smooth rotation of the horizontal driven shaft;
• flange track frame bearings that connect a track frame to the axle assembly via the horizontal driven shaft and flange bearing fasteners with the flange track frame bearings also allowing the track frame to oscillate on the horizontal driven shaft;
• the horizontal driven shaft keyed for engaging a keyed drive yoke and a drive hub;
• the drive yoke being keyed that mounts to an inner end of the horizontal driven shaft with the drive yoke having a flange for mounting a track drive element;
• the drive hub being keyed that mounts to an outer end of the horizontal driven shaft with the drive hub having a flange for mounting the track drive element.