820220022 Excavator parts pc75 Track roller

PC75 heavy wheel is an important part of Komatsu PC75 excavator “four-wheel belt”. It mainly supports the weight of the whole machine, distributes the weight of the excavator evenly on the track plate, and prevents the track from slipping horizontally to ensure that the excavator can walk stably along the track direction. PC75 heavy wheel is usually composed of wheel body, heavy wheel shaft, shaft sleeve, sealing ring, end cap and other components, and its manufacturing materials and processes need to ensure high strength, wear resistance and sealing.