The idler is used to guide the track around correctly to prevent it from running off and going off track. Most excavators also serve as heavy wheels. In this way, the contact area of the track to the ground can be increased and the specific ground pressure can be reduced.
The wheel face of the excavator idlers-bulldozer idlers is made of smooth surface, and the middle arm ring is used as a guide, and the annular surface on both sides supports the rail chain. The smaller the distance between the front idler and the nearest track roller, the better the guide.
Material: 40,50 steel, or 35MN, cast, tempered, hardness HB230-270.
In order to make the excavator idlers-bulldozer idlers play a role and extend its life, the radial runout of the wheel facing the center hole should be less than or equal to 3MM, and the installation should be correctly aligned.
