The Structure Of PU Timing Belt

The PU Timing Belt which is also called Polyurethane Timing Belt, is composed of three parts, that is: back, tension level and belt teeth.

(1) PU timing belt back
Belt back of Polyurethane Timing Belt to the tensile component adhesive coating should have good flexibility and flex fatigue resistance properties, not easy to aging, oil resistance, good wear resistance, there is an appropriate angular size groove in the back of the inner surface of the opening. Besides the requirements of technology, it can also improve teeth’s curved flex fatigue performance while it is running. Meanwhile, PU timing belt back set the tooth air escaping between the closure to eliminate some noise.

(2) wire rope (or polyester cord) tensile layer

Tension level is one of components of PU Timing belt which charges to deliver power and to ensure that the working season from the same belt. Polyurethane Timing Belt uses multi-strand wire rope (or polyester cord) along the tape width of the spiral-shaped manner around the cloth, its position to be the belt section line. Tension level must have high tensile strength tensile strength and resistance to bending fatigue. Large elastic modulus, not allow any extension when it is working to guarantee the fixed pitch of PU timing belt.

(3) Belt teeth of PU Timing Belt
Polyurethane timing belt teeth should have a higher shear strength, good abrasion resistance and oil resistance. Distribution requirement with teeth is very high. Belt teeth should match with the right gear to be meshing with the pulley groove, so it is strict requirements to the accuracy of geometrical parameters belt teeth. PU timing belt is popular with excellent oil resistance, wear resistance.It applies to high-speed operation with small power situation that the environment should be relatively dry and the working temperature is generally range -20 to +80 C.