Patent ID: 9045180
Filing Date: 2015-06-02
Classification: B62D

Abstract:
1. A ground-engaging track system for a machine comprising: a rotatable track-engaging element; a track extending about the rotatable track-engaging element and including a first and a second track chain and a plurality of track shoes coupled with the first and second track chains; the first and second track chains each including a plurality of elongate links each having an inboard side and an outboard side and defining a first and a second track pin bore communicating between the inboard and outboard sides; and each of the plurality of elongate links further including a flat lower surface in contact with one of the plurality of track shoes, and an upper rail surface in contact with the rotatable track engaging element, the upper rail surface being formed of a sacrificial wear material and having a convex longitudinal profile configured to delay scallop formation in the upper rail surface resulting from the contact with the rotatable track engaging element, wherein each of the plurality of elongated links is S-shaped, such that the upper rail surface includes a center section extending between a first end section and a second end section that is laterally offset from the first end section, and wherein the convex longitudinal profile is formed by the center section, and each of the first and second end sections is flat and forms a linear longitudinal profile transitioning with the convex longitudinal profile.