Circle and drawbar assembly for a motor grader

A work element assembly of a construction machine, comprising:

• a first frame adapted for mounting to the construction machine and supporting a second frame, said first frame including a number of shoe assemblies having a first shoe member defining a first bearing surface, a second shoe member, and a number of shims clamped between said first and second shoe members and a second bearing surface;
• a second frame adapted for mounting the work element thereto, said second frame including a circular portion;
• a number of ring gear segments mounted to said circular portion in a circular array, each of said number of ring gear segments including gear teeth adapted for engaging drive means of said first frame to rotate said second frame relative to said first frame;
• said circular portion and said number of ring gear segments defining an assembly slidingly disposed between said first bearing surface and said second bearing surface;
• a number of first bearing members disposed between said circular portion and said first bearing surface;
• and
• a number of second bearing members disposed between said number of ring gear segments and said second bearing surface.