Rubber Bearing

◆◆ Rubber bearings are classified according to the following criteria:

◆◆ The characteristics of rubber bearings include:

1. Simple Structure: Rubber bearings have a relatively simple structure, which not only facilitates production but also involves no complex operation steps during installation, and their maintenance is also straightforward.

2. Durable and Sturdy: Rubber bearings are resistant to corrosion, and their moderate elasticity enables them to effectively transfer forces from various directions. Therefore, they can be widely applied in different types of buildings.

3. Low Cost: The raw materials for rubber bearings are easy to synthesize, resulting in low production costs. Additionally, with a wide range of models and types, coupled with their durability and sturdiness, they have become an indispensable component in the construction material industry.

4. Excellent Seismic Isolation Performance: Seismic isolation rubber bearings offer advantages such as easy replacement, convenient maintenance, and simple structure.

5. Wide Application Range: Rubber bearings are not only widely used in the processing of rubber products but also in fields such as automotive decoration, architectural decoration, and wood carving.

6. Effective Shock Isolation: Rubber bearings can reduce the impact of live loads and seismic forces on buildings.

7. Easy Maintenance: The daily inspection and maintenance of rubber bearings are relatively simple, and they are easy to replace. Generally, no special maintenance is required within their design service life.

8. Strong Vertical Load-Bearing Capacity: Rubber bearings have sufficient vertical stiffness, enabling them to withstand large vertical loads and effectively transfer the reaction forces of the superstructure to piers and abutments.

9. Large Horizontal Displacement Capacity: Rubber bearings can adapt to large horizontal displacements, which is particularly important for structures such as bridges that need to withstand wind loads and seismic effects.

10. Flexible Rotation: Through the interaction between the built-in rubber blocks, stainless steel plates, and polytetrafluoroethylene (PTFE) plates, rubber bearings can achieve flexible rotation—this is crucial for the normal operation and safety of bridges.

11. Good Weather Resistance: High-quality rubber bearings can maintain stable performance for a long time under harsh climatic conditions and are not easily affected by environmental factors such as ultraviolet rays and ozone.

12. Significant Damping Effect: Some special rubber bearings, such as High Damping Rubber (HDR) bearings, can provide significant energy dissipation during earthquakes, effectively reducing the vibration response of structures.

◆◆ The application scope of rubber bearings includes the following:

1.Bridge Engineering Field:

For medium and small-span beam-type highway bridges, plate-type rubber bearings are a common choice.

For long-span continuous beam bridges or rigid frame bridges, pot-type rubber bearings are more suitable.

PTFE (polytetrafluoroethylene) plate-type rubber bearings play a role in some highway bridges with special requirements.  

2.Railway Bridges:

In medium and small-span simply supported railway beam bridges, plate-type rubber bearings can meet the load transmission requirements of railway trains after special design.

For long-span continuous railway beam bridges, arch bridges, etc., pot-type rubber bearings can provide reliable support.

3.Urban Overpasses:

Rubber bearings are widely used in urban overpasses. Spherical cap plate-type rubber bearings can well adapt to the spatial rotation and displacement of the beam ends of these bridges.

4.Building Engineering Field:

In the base isolation system of buildings, rubber bearings are key isolation components.

Rubber bearings can be used to support large-scale equipment such as air conditioning units and generator sets.

5.Industrial Plant Buildings:

In industrial plants with crane operations, cranes generate large impact forces and vibrations during operation. Rubber bearings can be used for the support of crane beams to buffer the vibrations generated when cranes are in operation.

6.Civil Engineering Projects such as Tunnels, Subways, and Hydropower Stations:

Rubber bearings can also be applied in these projects to exert their unique shock absorption and support functions.

7.Various Highway and Municipal Bridges in Seismic Intensity Zones of Magnitude 7 (0.10g) and Below:

The LNR series horizontal force-dispersing rubber bearings are suitable for this area.

To sum up, rubber bearings are widely used in various engineering fields, and their main functions are to provide support, absorb shocks, and adapt to the deformation of structures.

◆◆ Installation Steps of Rubber Bearings

The installation of rubber bearings is a process that requires precise operation. The following are the organized installation steps:

1.Review the design drawings to understand the model, specification and installation position of the bearings.

2.Clean the surface of the bearing installation position to ensure the foundation is flat, clean and free of looseness.

3.Determine the accurate position of the bearing according to the design drawings and on-site measurement results.

4.Place the bearing at the predetermined position and adjust it to a horizontal state.

5.Check the levelness and verticality of the bearing to ensure it meets the design requirements.

6.Connect the superstructure to the bearing to ensure the connection is firm and reliable.

7.If the bearing needs to be fixed by welding, carry out the welding operation and conduct a weld inspection.

8.Perform sealing treatment on the joint between the bearing and the structure to prevent the intrusion of moisture and debris.

9.After the installation is completed, conduct a final inspection to ensure all installation parameters meet the design and specification requirements.

The above steps are the basic process for rubber bearing installation. During specific operations, adjustments should be made according to the actual situation and design requirements. At the same time, attention should be paid to safety during the installation process to ensure the construction quality.

1.What are your main products?

Our main products include:  Anti-Seismic Flexible Pipelines;Bridge Bearings;Bridge Expansion Joints ;Sealants ; Waterstops

2. Can you provide customized products?

Absolutely! We offer tailored solutions based on your project’s specific requirements, covering everything from material selection (such as NBR, EPDM, and more) to structural design. All custom orders come with detailed technical drawings and professional installation guides to ensure seamless implementation.

3.What certifications does your company possess?

We hold ISO certifications for quality, environmental, and occupational health management systems, ensuring strict compliance with GB/T 17955-2019 and other national standards.

4.Do you offer installation support?

Yes, we provide after-sales support, including remote video guidance for installation.