What is the function of the tire bead pad?
The main function of the tire bead pad is to protect the inner tube from wear and tear by the wheel rim, and to prevent it from being caught between the wheel rim and the outer tire bead. As an important component of car tires, the structure and material selection of the cushion belt have a direct impact on the service life of the tire.
Tire bead pad is a circular adhesive tape with a certain cross-sectional shape, which has the function of protecting the inner tube. During installation, the inner tube valve passes through the circular hole on the gasket to ensure that the valve is not worn. The tire bead pad is installed between the inner tube and the wheel rim, with a thicker center and gradually thinner edges from the inside out. The outer surface of the tire bead pad also has a centerline as the alignment line during installation. There is also a hole on the centerline for the inner fetal air valve to pass through.
The requirements for the physical and mechanical properties of the rubber material for the bead pad are relatively low, but it must have good aging resistance to ensure its stable performance during long-term use. The selection and installation of bead pads are crucial for ensuring the overall performance and safety of tires.
Tire bead pads can be divided into two types based on their cross-sectional shape: concave and flat. Concave tire bead pads are easier to assemble and have a more accurate installation position, making them widely used in hollow tires for automobiles. Both types of padding have their own characteristics and application scenarios, and choosing the appropriate padding is crucial for improving the service life and performance of tires.
