Are You Familiar with the Common Failure Modes on Roll .
Conditions include, tremendous forces, bending moments, thermal stresses, and wear. Roll materials are selected for strength, rigidity, and wear resistance. Roll materials vary dependent upon the specific metal rolling process. Common roll materials are cast iron, cast steel, and forged steel.Abnormal tire wear, such as feathering or cupping, can be caused by alignment or suspension problems. Once the tread surface is no longer smooth, the tires will generate more noise. Tire replacement is necessary, but suspension repair and realignment will prevent the problem from resurfacing. Regular tire rotations—every 5,000 to 8,000 miles .