A sprocket assembly (130) for a track-type machine (100) comprises a plurality of teeth (131), radially-disposed about a center of the sprocket assembly, each of the plurality of teeth comprising opposing tooth flanks (131a), wherein successive pairs of teeth defines a substantially concave channel (134) for receiving therein a cylindrical pin member (113) associated with a track link member ( 112) of a continuous track chain (111), each tooth flank having a tooth angle less than about 17 degrees.
