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Use 35MN and 50MN more.
The wheel surface is quenched and the hardness reaches HRC48, 57 to obtain good wear resistance.
Mostly use sliding bearing support. And use a floating oil seal to prevent dust.
Generally only one butter is added during a major repair period, which simplifies the usual maintenance work of the excavator.
Sandrock Mining undercarriage parts include track roller, carrier roller, front idler and sprockets, track shoe, track link assembly, applicable for Caterpillar, Komatsu, Hitachi, Volvo, Daewoo, Hyundai, Kato, Kobelco, Sumitomo, Samsung, Mitsubishi etc.
The function of the track roller is to transfer the weight of the excavator to the ground. When the excavator is driving on uneven roads, the roller will be impacted by the ground. Therefore, the roller is subjected to large loads and the working conditions are poor. It is often in the dust.Sometimes soaked in muddy water, so a good seal is required.