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Help CenterSteel Reinforced Bridge Rubber Bearing, 300mm Diameter, 80mm Height, 2500kN Load, Anti-Seismic Design
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Welcome to Hengshui Ruibin New Materials LLC, a professional manufacturer of high-performance bridge bearings since 2019. Our 300mm diameter, 80mm height steel reinforced rubber bearing with 2500kN load capacity and anti-seismic design is engineered to provide superior structural support and safety for modern bridge projects. Combining advanced manufacturing techniques with rigorous quality control, this bearing ensures long-term stability and durability in demanding environments. We are committed to delivering reliable solutions that meet the diverse needs of global infrastructure clients.
Product Overview
This steel reinforced rubber bearing is designed to accommodate vertical loads, horizontal movements, and rotations in bridge structures while effectively dissipating seismic energy. The 300mm diameter circular shape and 80mm height optimize space utilization and load distribution. The 2500kN load capacity makes it suitable for medium to large span bridges. The anti-seismic design incorporates energy-absorbing rubber layers and steel plates to enhance resilience during earthquakes.
Key Features and Benefits
- High Load Capacity: With a 2500kN rating, it supports heavy bridge superstructures with reliable performance.
- Anti-Seismic Performance: The multi-layer rubber and steel construction provides excellent energy dissipation, reducing structural damage during seismic events.
- Durable Materials: Natural rubber with high elasticity and UV resistance, combined with Q235 steel plates, ensures long service life under varying weather conditions.
- Precision Dimensions: 300mm diameter and 80mm height are manufactured to tight tolerances (±1mm) for easy installation and consistent load transfer.
- Low Maintenance: The sealed design prevents contamination and corrosion, minimizing the need for regular inspection and replacement.
- Versatile Application: Suitable for highway bridges, railway bridges, and other civil engineering structures requiring seismic protection.
Technical Specifications
| Parameter | Value |
| Diameter | 300 mm |
| Height | 80 mm |
| Vertical Load Capacity | 2500 kN |
| Horizontal Displacement | ±25 mm (customizable) |
| Rotation Angle | 0.02 rad (typical) |
| Operating Temperature | -40°C to +60°C |
| Material Grade | Steel: Q235B; Rubber: Natural Rubber (NR) |
| Design Standard | AASHTO M251 (compatible) |
Note: Custom sizes and load ratings are available upon request.
Why Choose Hengshui Ruibin New Materials LLC?
As a manufacturer with over 5 years of experience, we operate a factory covering 1,000-3,000 square meters and employ a skilled team of 101-200 people. Our annual export value reaches US$2.5-5 million, supplying products to markets across North America, South America, Eastern Europe, Southeast Asia, Africa, Oceania, the Middle East, and more. We deliver from the Port of Tianjin and Port of Qingdao with efficient logistics. Every bearing undergoes strict quality control to ensure consistent performance. Our commitment to customer satisfaction is reflected in our responsive after-sales support and willingness to provide customized solutions. When you choose our steel reinforced rubber bearing, you invest in proven reliability and peace of mind.
Frequently Asked Questions (FAQ)
Q1: What is the maximum load this bearing can handle?
A: The standard load capacity is 2500 kN per bearing. For higher loads, we can design custom sizes and reinforcements.
Q2: Is this bearing suitable for bridges in earthquake-prone areas?
A: Yes, the anti-seismic design with rubber-steel layers effectively dissipates seismic energy, reducing acceleration and stress on the bridge structure.
Q3: What is the expected lifespan of the bearing?
A: Under normal service conditions, the bearing can last 50+ years with proper installation and minimal maintenance. The rubber compound is resistant to aging and ozone.
Q4: Can the dimensions be customized?
A: Yes, we offer custom diameters, heights, and load capacities. Please contact our sales team with your project requirements.
Q5: How is the bearing installed?
A: The bearing is placed between the bridge girder and pier. It requires a level surface and proper anchoring. Detailed installation guidelines are provided with each order.
Q6: What certifications does your product hold?
A: Our products meet international quality standards and have passed third-party testing. Specific certifications can be provided upon request, depending on the target market.
Q7: Do you provide samples for testing?
A: Yes, we can supply sample bearings for quality evaluation. Shipping costs are negotiable.
Q8: What is the lead time for bulk orders?
A: Typical lead time is 15-25 working days for standard sizes, subject to order quantity. Custom orders may require additional time.
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