Bottom track rollers are a key component of the excavator’s travel mechanism. They work with the tracks to enable the excavator to move forward, backward, turn, and so on. The design and material selection of the rollers are to ensure that they can still work normally under heavy loads and harsh environments, and have sufficient strength and wear resistance.
The lower rollers play a key role in dispersing the weight of the excavator body. The weight of the excavator body is usually very large, and the design of the rollers allows this weight to be evenly distributed on the tracks, thereby reducing the pressure on the ground and preventing the excavator from sinking into soft soil or sand.
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