... pre-tension 3.Low noise 4.High abrasion resistan PU timing belts are manufactured in thermoset polyurethane by a ... , Pink, Grey, Coffee Cords:Steel, Kevlar, Nylon Coating:PU timing belts can be manufactured with special coatings, in order ... application with different requirements, such as red rubber, APL, PU .etc Mechanical featuresConsistent dimensional stabilityLow pre-tensionLow noiseHigh abrasion ...