In terms of high-temperature resistance, nylon pulleys are significantly stronger than polyurethane pulleys. In terms of the flexibility of rotation, the two are comparable and the performance is excellent.
What is the difference between nylon pulley and polyurethane pulley? First of all, we must have a clear understanding of the two materials. Polyurethane is an elastomer between plastic and rubber, and its excellent comprehensive properties are not available in ordinary plastics and rubbers. It has good properties such as oil resistance, abrasion resistance, radiation resistance, high load-bearing capacity, and shock absorption.
Nylon is a plastic made of polyamide resin. Its synthesis is a major breakthrough in the synthetic fiber industry and a very important milestone in polymer chemistry. It has high mechanical strength, good toughness, high tensile, and compressive strength. The ability to absorb shock, stress, and vibration is strong, and the shock strength is much higher than that of general plastics. At the same time, it is also resistant to corrosion, very alkali and most salt liquids, and also resistant to weak acids, engine oils, gasoline, aromatic compounds, and general solvents, and inert to aromatic compounds, but not resistant to strong acids and oxidants. It is self-extinguishing, non-toxic, odorless, good weather resistance, inert to biological erosion, and has good antibacterial and mildew resistance.