Tracklaying gear

Tracklaying gear for a road finishing machine or a feeder and having (a) a drive chain wheel comprising circumferential teeth and being rotatably driven about an axis, and (b) at least one idler wheel freely rotating about an axis inside a caterpillar track and including, a lowered circumferential bearing shoulder located on at least at one side of a centric raised guide collar, and at least one damping layer comprising a damping material is integrated-in the drive chain wheel or the idler wheel between the axis and the caterpillar track by the drive chain wheel or the idler wheel being coaxially divided between the axis and the caterpillar track into an inner and an outer part and at least two axially separated damping layers being arranged between the inner and the outer parts and the inner and the outer parts are guided to exclusively radially slide within each other and the inner and outer parts being are exclusively radially movable relatively with respect to each other and wherein, two external annular damping layers separated in the axial direction by a space and having approximately the same diameters are additionally provided at the outer part at the drive chain wheel and/or the idler wheel, and in the region of the space, the metallic external teeth or the guide collar, respectively, coming into direct contact with the caterpillar track are arranged, the teeth or guide collar projecting beyond the external damping layers to the outside, and that the respective external damping layer is attached on the bearing shoulder and firmly connected to the bearing shoulder by drawing it on, oversize shrink-fitting, spraying, gluing, coating or vulcanizing ,and the outer part of the idler wheel comprising the guide collar and bearing shoulders on either side is a supporting ring with an internal first radial guiding structure and cylindrical or conical support surfaces on either side of the first radial guiding structure, the inner part of the idler wheel rotatably mounted on the axis is an annular hub with a second radial guiding structure matching the first radial guiding structure and cylindrical or conical support surfaces on either side of the second radial guiding structure in a circumferential crown matching the supporting ring, one damping layer each is disposed between the support surfaces, and firmly connected with a support surface, and the first and second radial guiding structures form a sliding guide meshing exclusively with a radial free motion.