Drive mechanism for a track type work machine having enhanced durability

摘要

A drive mechanism includes a sprocket drive assembly which includes a hub, and a plurality of engagement members each being supported by the hub. The drive mechanism further includes a track assembly having a plurality of shoes which are secured to one another to form a track, and a plurality of drive lugs which are mounted to the plurality of shoes. The drive lugs engage the plurality of engagement members when the hub is rotated. Each of the drive lugs includes a left lateral rail segment and a right lateral rail segment. The track assembly further includes a support roller mechanically coupled to a chassis of the work machine. The support roller includes a left wheel and a right wheel. The left wheel is supported by the left lateral rail segment during advancement of the track. The right wheel is supported by the right lateral rail segment during advancement of the track.