... Tough, transparent, high cost Handles, eyeglass frames Polyamide 6 (Nylon) PA6 Akulon, Ultramid, Grilon High strength, fatigue resistance, ... Bearings, bushings, gears, rollers, wheels Polyamide 6/6 (Nylon) PA6/6 Kopa, Zytel, Radilon High strength, fatigue resistance ... levers, small housings, zip ties Polyamide 11+12 (Nylon) PA11+12 Rilsan, Grilamid High strength, fatigue resistance, chemical resistance ...