Double-sided support roller D9R-21-000SB
It is a part of the running system of the tractor and is designed to transfer the weight of the tractor to the tracks and through them to the ground, as well as to ensure the direction of movement of the tractor bogie and prevent it from going off the track; to prevent the support rollers from going off the tracks, the rollers have flanges. Spare part of running systems to bulldozers CATERPILLAR - D9N/R/T (quantity for 1 bulldozer - 8 pcs. ).
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