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Help CenterHigh Damping Rubber Bearing 250x250x40mm 0.5Hz Natural Frequency Seismic
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Hengshui Ruibin New Materials LLC – a professional manufacturer established in 2019 with a 1,000-3,000 sqm factory and an annual export value of US$2.5-5 million – proudly presents our High Damping Rubber Bearing 250x250x40mm with a natural frequency of 0.5 Hz. This seismic isolation bearing is engineered to protect structures from earthquake-induced vibrations, ensuring safety and stability. Our 101-200 skilled employees and global export experience (covering North America, South America, Europe, Asia, Africa, Oceania, and the Middle East) guarantee consistent quality and reliable delivery.
The High Damping Rubber Bearing is a compact, cost-effective solution for low-frequency vibration isolation. With a natural frequency as low as 0.5 Hz, it effectively decouples the superstructure from ground motion, reducing seismic forces by up to 80%. The 250x250x40mm dimensions make it ideal for residential buildings, equipment platforms, and light industrial structures. Manufactured from high-damping rubber compounds, the bearing provides both isolation and energy dissipation in one unit, eliminating the need for separate dampers.
Key Features & Technical Specifications
- Ultra-Low Natural Frequency: 0.5 Hz typical – excellent for isolating low-frequency vibrations from earthquakes, traffic, or machinery.
- High Damping Capacity: Damping ratio ≥15% (up to 20% on request) – provides inherent energy dissipation without external dampers.
- Compact Footprint: 250mm x 250mm x 40mm – easy to install in confined spaces, lightweight (approx. 5-8 kg).
- Robust Construction: Steel-reinforced layers with high-damping rubber – durable for decades of service life.
- Wide Temperature Range: -40°C to +70°C suitable for most climates.
- Customizable: Load capacity, stiffness, and dimensions can be tailored to specific project requirements.
- Easy Installation: Pre-drilled holes for anchor bolts, no special tools required.
- Minimal Maintenance: No moving parts, sealed against dust and moisture.
| Parameter | Value |
|---|---|
| Plan Dimensions (mm) | 250 x 250 |
| Total Height (mm) | 40 |
| Natural Frequency (Hz) | 0.5 ± 0.05 |
| Design Load (kN) | 50 – 300 |
| Damping Ratio (%) | ≥15 |
| Horizontal Shear Stiffness (kN/mm) | 0.3 – 1.5 (customizable) |
| Operating Temperature (°C) | -40 to +70 |
Benefits for Your Project
- Enhanced seismic safety – reduces floor accelerations and inter-story drifts, protecting occupants and equipment.
- Cost-effective – lower installation cost compared to full base isolation systems; no need for additional dampers.
- Space-saving – compact size fits into existing columns or walls without major modifications.
- Long service life – rubber components are resistant to ozone, UV, and aging; steel plates are hot-dip galvanized.
- Proven performance – tested in our lab and by third-party institutes; consistent quality control.
Trust & Reliability
Hengshui Ruibin New Materials LLC has been serving global clients since 2019. Our factory covers 1,000-3,000 sqm with dedicated production lines for rubber bearings. We export to over 20 countries with an annual export value of US$2.5-5 million. Our team of 101-200 employees includes R&D engineers who can customize the bearing to meet your specific seismic requirements. We ship from Tianjin or Qingdao ports, ensuring fast logistics. Contact us today for a quotation or technical consultation. Experience the reliability of a true manufacturer.
Frequently Asked Questions
-
Q: What is the typical lifespan of this High Damping Rubber Bearing?
A: Under normal conditions, the bearing can last 30-50 years. The rubber compound is formulated to resist ozone, UV, and fatigue. Regular visual inspection is recommended every 5 years. -
Q: Can this bearing be used for retrofitting existing buildings?
A: Yes, the compact size (250x250x40mm) makes it suitable for retrofit applications. It can be installed under columns or shear walls with minimal disruption. -
Q: What is the maximum load capacity?
A: The standard design load range is 50-300 kN. For higher loads, we can modify the bearing geometry or use a different rubber compound. Contact us for custom solutions. -
Q: Does the bearing require any maintenance?
A: No regular maintenance is needed. The bearing is sealed and weatherproof. However, we suggest an annual visual check to ensure no debris buildup or damage. -
Q: How does the 0.5 Hz natural frequency benefit seismic isolation?
A: A 0.5 Hz natural frequency is well below the typical frequency range of earthquake ground motion (0.5-10 Hz). This decouples the structure from the ground, reducing accelerations by 50-80%. -
Q: Can the bearing handle horizontal displacement during an earthquake?
A: Yes, the bearing accommodates horizontal shear displacements up to ±50 mm (customizable). The high damping rubber provides restoring force and energy dissipation. -
Q: Do you have any certifications?
A: We follow international manufacturing standards and can provide test reports. Specific certifications are available upon request based on your project requirements. -
Q: What is the delivery time?
A: For standard sizes, delivery is 15-20 working days after order confirmation. Custom orders may take 25-30 days. We ship FOB from Tianjin or Qingdao.
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