The wear of the excavator and bulldozer support wheel may cause damage to the chain, guide wheel and drive wheel. In the work of excavators and bulldozers, heavy wheels bear important loads and pressures, so wear and fatigue often occur. When the support wheel is heavily worn, it can lead to instability of the track chain, which in turn causes additional pressure and friction on the chain, guide wheel and drive wheel. -- Nan 'an excavator support heavy wheel

The guide wheel is an indispensable part in the walking system of large construction machinery such as excavator. It sits on top of the track and its main task is to guide the track to wind correctly. In addition, it also adjusts the tensioning degree of the track through the tensioning device, which acts as both a guiding function and a tensioning wheel. -- Excavator guide wheel

The support wheel and chain rail of the track car are the key components of the track car, and their functions are as follows: Support wheel :-- chain rail