... resistance, low coefficient of friction, not easy to wear belts; 2, nylon rollers have good self-lubricating, no oiling, easy ... resistance, chemical (acids, alkalis and organic solvents) corrosion; 4, nylon rollers can withstand repeated impact and vibration; 5, the Ambient ... properties, light weight, easy installation, no maintenance; 7, nylon rollers has low noise (3-7DB),stable operation, long life ...