Rubber-Metal Wheel Noise Absorber
Rubber-metal wheel noise absorbers effectively reduce wheel-rail noise and play a key role in ensuring quieter, more comfortable and longer-lasting operation of railway vehicles. They are available in various versions and are designed for long-term use.
Area of application
Rubber-metal wheel noise absorbers are used in railway vehicle construction to significantly reduce noise generated by wheel sets, thereby improving ride comfort and environmental performance. Their primary applications include use on wheel discs of streetcars, regional trains and high-speed trains, where they effectively dampen structure-borne noise and wheel-rail noise. Particularly in urban areas, tunnel sections and noise-sensitive zones, they play a crucial role in ensuring compliance with statutory noise limits.
Technical details
The technical details of the wheel noise absorbers are based on a combination of precisely engineered metal supports and highly effective elastomer components. The metal ensures secure attachment to the wheel disc and guarantees dimensional stability, while the vulcanized rubber element absorbs vibration energy and converts it into heat. Depending on the vehicle type and application profile, the absorbers can be designed with different geometries, material hardnesses and damping characteristics. Many systems feature a modular design, are maintenance-free and are engineered to withstand high dynamic loads.
Characteristics
Key characteristics of rubber-metal wheel noise absorbers include their high vibration and noise damping, the significant reduction of rolling and squeaking noises as well as their resistance to temperature fluctuations, moisture, oils and environmental influences. They contribute to a quieter, more energy-efficien, and more comfortable driving experience—a key factor in sustainable mobility.