What is PU timing belt?

In the field of industrial belts, there are mainly two types: polyurethane timing belts and rubber timing belts. Some people may ask: What is the difference between Polyurethane Timing Belt and Rubber Timing Belt? Which one is better? Now with these questions, let’s take a look at the comparison between polyurethane timing belts and rubber timing belts.

 

Polyurethane and rubber are the two main raw materials commonly used in Synchronous belt products. What are the differences between synchronous belt products made from these two different raw materials? We will show you the differences between these two different material Timing Belt products from the five dimensions of material, hardness, application, production process and material properties.

 

1. Differences in materials

Obviously, rubber timing belts use rubber as the raw material for production, while polyurethane timing belts use polyurethane.

 

2. Different hardness

The rubber timing belt is softer than the polyurethane timing belt. The hardness of the rubber timing belt and the polyurethane timing belt is about 65 degrees Shore and about 92 degrees Shore respectively.

 

3. Different applications

Rubber timing belts are relatively more widely used and have relatively lower manufacturing costs. The application of polyurethane timing belts has certain limitations, but in some specific occasions, the characteristics of polyurethane timing belts that do not produce dust make their advantages more prominent, such as food, medicine, beverage recycling, electronics, etc., which are harmful to dust. Polyurethane timing belts are often used by demanding industries.

 

4. Different production processes

The production process of rubber timing belts includes rubber mixing, mixing, vulcanization and other processes, which is relatively more cumbersome, while the process of polyurethane timing belts is simpler. TPU type timing belts are usually directly extruded by extrusion machines, and CPU type products are usually Production can be completed using the pouring method.

 

5. Material properties

The wear resistance of rubber timing belt is usually not as good as that of PU Timing Belt. In terms of resistance to chemical substances such as acids and alkalis, PU timing belts are also better.

 

6. PU timing belts also have thickened glue (red glue/green glue), added stops, holes, and other Special Processing Timing Belt.