What exactly are the track wheels of excavator accessories?

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Here comes the explanation of the supporting rollers of excavator parts. Everyone is becoming more and more familiar with the supporting rollers of excavator parts. This time we understand the functions of the supporting rollers of XCMG excavator parts and what matters need to be checked before using the supporting rollers of excavator parts. Let's study it with curiosity!
Function of the supporting rollers of excavator parts
The function of the supporting rollers is to transfer the weight of the locomotive group to the ground and roll on the tracks. In order to prevent derailment, the supporting rollers should also be able to prevent the tracks from moving relative to it laterally.
The supporting rollers often work in mud, water, ash and sand, and are subjected to strong impacts. The working conditions are relatively harsh and the wheel rims are easy to wear.
The requirements for the supporting rollers are: wear-resistant wheel rims, reliable bearing seals, low rolling resistance, etc.
Inspection of the supporting rollers of excavator parts
1. During the installation process, the parts should be strictly inspected according to the technical requirements, kept clean, and impurities should be prevented from entering the installation surface. The sealing end face of the sealing ring, even tiny dust particles will destroy the seal and cause oil leakage.
Excavator accessories supporting wheels

2. Sealing sleeves and sealing rubber rings that are aging, deformed, have scars, or cracks need to be replaced with new ones.

3. When the spring force is insufficient, it should be replaced, and its uneven end surface can be ground flat. When the pressure ring is warped, it should be repaired and leveled, and the sharp edges should be removed.

4. If the large and small sealing rings are not in tight contact, they can be re-grinded to have a uniform and continuous grinding ring belt. It is not allowed to hit the end surface of the ring and disrupt the mating ring. The thickness of the ring should be consistent, otherwise it must be replaced.

5. If the thickness of the rubber ring is not enough, it is allowed to wrap asbestos rope to make it reach a tightness of /0.15~0.20 kg per square centimeter.

6. The bending, out-of-round or neck wear of the wheel axle, the wheel hub of the supporting wheel, and the wear of the matching belt of the sealing shell must be repaired.

7. When the bearing and the sealing ring are worn on the plane, a 2~4 mm thick oil-resistant rubber ring can be placed between the sealing sleeve and the end surface of the hub according to the degree of wear. After installation, the seal sleeve assembly should be able to rotate freely on the wheel hub. In addition, a washer with an outer diameter of 100 mm, an inner diameter of 85 mm, and a thickness of 1.5 mm can be used between the outer ring of the bearing and the support shoulder of the seal housing to compensate for the wear of the bearing. When the height of the seal sleeve is less than 32 mm and the width of the bearing is less than 41 mm, it should be replaced with a new one.

8. The paper pad on the supporting wheel should be kept intact and of appropriate thickness.

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