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Help CenterBridge Rubber Bearing for Highway Railway 300x300x50mm 50kN/mm Stiffness
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As a professional manufacturer of bridge bearings, Hengshui Ruibin New Materials LLC is proud to present our Bridge Rubber Bearing for Highway Railway 300x300x50mm 50kN/mm Stiffness. With over 5 years of experience in producing high-quality elastomeric bearings, we have established a factory spanning 1,000-3,000 square meters and a dedicated team of 101-200 employees. Our annual export value of US$2.5 million to US$5 million reflects the trust our global clients place in our products. This bearing is specifically designed to meet the demanding requirements of highway and railway bridges, offering superior load distribution, durability, and vibration isolation.
Our 300x300x50mm rubber bearing delivers a consistent stiffness of 50kN/mm, ensuring stable support under heavy traffic loads and dynamic forces. The composite structure of natural rubber and internal steel plates provides excellent shear deformation capacity and energy dissipation, making it an ideal solution for bridges in seismic zones or high-speed rail applications. Each unit is manufactured under strict quality control, with dimensions and performance tested to meet international standards (specific certifications are available upon request).
Key Features & Technical Advantages
- Precision Dimensions: 300x300x50mm (±1mm tolerance) ensures easy installation and compatibility with standard bridge designs.
- High Stiffness: 50kN/mm vertical stiffness provides minimal deflection under static and dynamic loads, enhancing bridge stability.
- Durable Material: Natural rubber compound with excellent aging resistance, ozone resistance, and a service life of 20-30 years under normal conditions.
- Shear Performance: Designed to accommodate horizontal displacements up to 20mm and rotations up to 0.02 rad, reducing stress on bridge substructures.
- Temperature Adaptability: Effective performance in temperatures ranging from -40°C to +60°C; customizable options for extreme climates.
- Corrosion Protection: Internal steel plates are fully encapsulated in rubber, preventing rust and ensuring long-term reliability.
Technical Specifications
| Parameter | Value |
| Product Dimensions (L×W×H) | 300mm × 300mm × 50mm |
| Vertical Stiffness | 50 kN/mm |
| Allowable Maximum Load | 1,500 kN (customizable up to 2,000 kN) |
| Shear Modulus (G) | 0.8 – 1.2 MPa (depending on rubber compound) |
| Maximum Horizontal Displacement | ±20 mm |
| Maximum Rotation | 0.02 rad |
| Operating Temperature Range | -40°C to +60°C |
| Rubber Hardness (Shore A) | 60 ±5 |
Benefits for Your Project
- Enhanced Bridge Safety: The high stiffness effectively controls vertical deflections, reducing the risk of structural fatigue and prolonging bridge life.
- Vibration & Noise Reduction: Rubber’s viscoelastic properties dampen traffic-induced vibrations, minimizing noise pollution in urban areas.
- Cost-Effective Installation: Lightweight design (approx. 15 kg per piece) and simple placement reduce labor and equipment costs.
- Low Maintenance: No moving parts and excellent weather resistance result in minimal maintenance requirements over decades.
- Customizable Options: We offer tailored stiffness, dimensions, and rubber compounds to match specific project requirements (contact us for custom solutions).
Company Strength & Trust
At Hengshui Ruibin New Materials LLC, we are not just a manufacturer; we are a partner committed to delivering excellence. Since 2019, our team of 101-200 skilled professionals has been dedicated to producing high-performance bridge bearings and expansion joints. Our factory is equipped with advanced production lines and testing equipment, ensuring consistent quality for every order. With an annual export value of US$2.5 million to US$5 million, we serve clients from North America, South America, Eastern Europe, Southeast Asia, Africa, the Middle East, and beyond. Our bearings are shipped from Port of Tianjin and Port of Qingdao, with reliable logistics support.
We understand that bridge components are critical to infrastructure safety. That’s why we subject each bearing to rigorous performance tests, including compression, shear, and rotation testing. While we hold other certifications (details available upon request), our commitment to quality is evident in the feedback from our global customers. We provide comprehensive technical support, from product selection to installation guidance. Choose Hengshui Ruibin for your bridge projects and experience the difference of a reliable supplier.
Frequently Asked Questions (FAQ)
-
Q: What is the typical lifespan of this rubber bearing?
A: Under normal environmental conditions and proper installation, our rubber bearings can last 20-30 years. The actual lifespan depends on factors such as traffic load, temperature extremes, and maintenance. We recommend periodic inspections every 5 years. -
Q: Can this bearing be used for high-speed railway bridges?
A: Yes, the 50kN/mm stiffness is suitable for railway bridges with moderate speeds. For high-speed rail (above 250 km/h), we recommend consulting our engineers to customize the stiffness and damping characteristics to meet specific dynamic requirements. -
Q: What certifications do you have?
A: We have obtained product certifications from authorized bodies (details available upon request). Our manufacturing process complies with relevant international standards, and we can provide test reports for each batch. -
Q: How do I install the bearing correctly?
A: Installation involves placing the bearing on a clean, level concrete surface, aligning it with the bridge girder, and ensuring uniform contact. We provide detailed installation manuals with every order, and our technical team is available for remote guidance. -
Q: Can you customize the dimensions or stiffness?
A: Absolutely. We offer custom sizes, stiffness values, and rubber compounds to meet unique project needs. Please provide your design parameters, and we will produce a tailored solution. -
Q: What is the minimum order quantity (MOQ)?
A: For standard sizes, MOQ is typically 10 pieces. For custom orders, MOQ may vary based on complexity. We are flexible and welcome small trial orders. -
Q: How is the bearing packed for shipping?
A: Each bearing is individually wrapped in protective film and packed in wooden crates or pallets to prevent damage during transit. We also offer export packaging for sea/air freight.
Contact us today for a quotation or technical consultation. Let Hengshui Ruibin New Materials LLC be your trusted partner in bridge infrastructure.
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