Arrangement for supporting a track chain of a track type work machine

A track chain assembly, comprising:

• a track link;
• a first bushing mechanically coupled to said track link, said first bushing has a first center point C1 defined thereon;
• a second bushing mechanically coupled to said track link, said second bushing has a second center point C2 defined thereon, said first center point C1 is spaced apart from said second center point C2 by a distance D1;
• and
• an idler wheel having a circumferentially extending surface defined thereon,
• wherein said circumferentially extending surface has a first substantially arcuate notch and a second substantially arcuate notch defined therein,
• said first bushing is positioned within said first notch,
• said second bushing is positioned within said second notch,
• said first notch has a first wall portion,
• said first wall portion has a first point P1 defined thereon at a first location,
• said second notch has a second wall portion,
• said second wall portion has a second point P2 defined thereon at a second location which corresponds to said first location,
• said point P1 is spaced apart from said point P2 by a distance D2, and
• said distance D1 is greater than said distance D2.

A track type work machine, comprising:

• a frame
• a work implement mechanically coupled to said frame;
• and
• a track chain assembly mechanically coupled to said frame, said track chain assembly having (i) a track link, (ii) a first bushing mechanically coupled to said track link, said first bushing has a first center point C1 defined thereon, (iii) a second bushing mechanically coupled to said track link said second bushing has a second center point C2 defined thereon, said first center point C1 is spaced apart from said second center point C2 by a distance D1, and point C1 is spaced apart from said second center point C2 by a distance D1, and (iv) an idler wheel having a circumferentially extending surface defined thereon,
• wherein said circumferentially extending surface has a first substantially arcuate notch and a second substantially arcuate notch defined therein,
• said first bushing is positioned within said first notch,
• said second bushing is positioned within said second notch,
• said first notch has a first wall portion,
• said first wall portion has a first point P1 defined thereon at a first locations
• said second notch has a second wall portion,
• said second wall portion has a second point P2 defined thereon at a second location which corresponds to said first location,
• said first point P1 is spaced apart from said second point P2 by a distance D2, and
• said distance D1 is greater than said distance D2.