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What's the abnormal wear of polyurethane forklift tires coat

What is the abnormal wear of polyurethane forklift tires coated wheel
What is the abnormal wear of polyurethane forklift tires? Abnormal wear is sometimes caused by low tire pressure, sometimes due to changes in internal structure, or high tire temperature caused by friction and heat. In either case, it will reduce the service life of the tire.
When the pressure of the polyurethane solid tire is higher than the standard value, the center of the tire crown is grounded, the contact area between the tire and the road surface is reduced, the load per unit area is increased, and the wear of the center of the tire crown increases. The tire cord is overstretched, the carcass cord stresses, and the cord fatigue process accelerates, causing the cord to break, causing the tire to burst early.
Periodic compression and deformation will accelerate the fatigue damage of the cord, causing relative slippage between the tire ply and the tire and the ground. The heat generated by friction increases, the tire temperature rises sharply, and the tensile strength of the rubber decreases. Loose and local delamination will cause a puncture when encountering obstacles and being impacted.
Under certain load and driving conditions, the polyurethane solid tires of forklift trucks have a suitable tire pressure. When the tire pressure is lower than the standard value, the tire will deform radially, causing excessive deflection on both sides, so that both sides of the tire crown will be grounded. When the inner wall of the sidewall is compressed and the outer wall of the sidewall is stretched, the cords in the carcass produce greater deformation and alternating stress.