How is the wear resistance of Rubber Rail Pads?
Rubber rail pads have good wear resistance, which is vital for their long service life in demanding railway environments. This resistance is achieved through proper material selection, such as advanced elastomers and synthetic rubbers like NBR, combined with engineering features like grooves on the surface to reduce abrasion. While standard rubber pads have good abrasion resistance, some applications may use polyurethane (PU) composite rubber for even superior wear resistance.
| Rubber Rail Pad | ||
| Technical Parameter | Unit | Value |
| Stiffness | KN | 90-130 |
| Hardness Shore A | ℃ | 72-80 degree |
| Electronic Resistance | Ω | ≥ 106 |
| Tensile Strength before Aging | Mpa | ≥12.5 |
| Elongation before Aging | % | ≥250 |
Factors contributing to wear resistance
- Materials: High-quality synthetic rubbers, including blends with nitrile rubber (NBR) for enhanced oil resistance, are used to improve durability. Some applications use polyurethane (PU) composite rubber for superior wear resistance.
- Surface design: Many pads have grooves or patterns on their surface. These grooves increase the contact area and friction with the rail and foundation, preventing slippage and reducing direct abrasion between the metal components.
- Reinforcement: Some pads are reinforced with steel strips, which adds lateral stiffness and helps maintain the pad's integrity under load.
Importance of wear resistance
- Extended lifespan: Good wear resistance is a key factor in the long service life of rubber rail pads, which minimizes the need for frequent replacement and reduces maintenance costs over time.
- Protection: The pads protect the rail base and the underlying sleeper (e.g., concrete sleeper) from direct abrasion and fatigue damage caused by the heavy loads and vibrations from passing trains.
As a professional rubber rail pad manufacturer GNEE RAIL can produce various standards of rubber rail pads and other rail fasteners. If you want to build a railway line, do not hesitate to contact us, we can supply all types of rubber rail pads with different materials. If necessary, we can make customized rubber rail pad production.
