... wear resistance, well rigidity, lubrication and maintenance free when working, it's the best choice for rollers (inner ring and ... propriety such as suitable for low and high temperatures, high load capacity, corrosion resistance, nonmagnetic insulated and self lubrication. Suit for ... -extinguishing according to UL 94. PTFE PTFE Polytetrafluoroethylene's working temperature from -200°C to 260°C,has high ...