Single kapa double flange track roller e loketse 1.5-55ton crawler ex-cavator le mechine e khethehileng;
Setiiso sa Biconical le moralo oa lubrication oa bophelo bohle li thusa lebili le jereng ho ba le bophelo bo bolelele le ts'ebeliso e phethahetseng maemong afe kapa afe;
khetla ea rolara e entsoeng ka kalafo e chesang ea ho lahla e nang le sebopeho se setle sa kabo ea thepa ea hona joale ea fiber;
Phapang kapa ka-ho fepa ho tima phekolo ea mocheso ka phello e khahlanong le crack;