Gold Member Since 2017
Audited Supplier
Heng Shui Kang Qiao Rubber Co., Ltd.

Seismic Isolator, Lead Rubber Bearing for Bridge, Earthquake Isolation manufacturer / supplier in China, offering Lead Rubber Bearing (LRB) for Building/Bridge Construction, Hot Sale Lead Rubber Bearing /Isolation Device for Bridge Construction, Seismic Isolation Bearing for Bridge and Building Construction and so on.

(/ )

Supplier Homepage Product seismic isolator Lead Rubber Bearing (LRB) for Building/Bridge Construction

Lead Rubber Bearing (LRB) for Building/Bridge Construction

FOB Price: US $220-800 / Piece
Min. Order: 10 Pieces
Min. Order FOB Price
10 Pieces US $220-800/ Piece
Get Latest Price
Port: Tianjin, China
Production Capacity: 100000PCS/Year
Payment Terms: L/C, T/T, Western Union

Request a custom order and have something just for you!

Send Customized Request
Basic Info
  • Model NO.: KQ-011
  • Usage: Earthquake Resistance
  • Size: From 200mm to 1200mm
  • Trademark: Kangqiao
  • Specification: As Customer′s Drawing
  • HS Code: 314513654
  • Certification: ASTM
  • Material: Cr/Nr
  • Model Number: D200-D1200mm
  • Transport Package: in Pallets or Wooden Cases
  • Origin: Heng Shui, Hebei Province, China
Product Description

Brief introduction of LRB lead shock insulation rubber bearing:

Contact Information:

Sales Manager : Ms.nancy Lee
 Heng Shui Kang Qiao Rubber Co.,Ltd

The product has good shock insulation performance, wide range of application, reliable mechanical properties of products, and good shockproof effect on buildings.The lead shock insulation rubber bearing is fused press-in lead core together with rubber bearing to follow shear deformation.This kind of bearing is a shock isolation device with all in one damping structure which is made of a recovery device stabilized by rubber bearing and a lead energy absorbing device. Lead is a kind of metal with good plastic deformation capacity and energy absorption capacity. The lead rubber bearing is one of the earliest bearings used in isolation structure. Lead rubber bearing has been widely used in engineering because of its excellent mechanical properties, simple structure and higher cost performance .

Lead Rubber Bearing (LRB) for Building/Bridge Construction

Lead Rubber Bearing (LRB) for Building/Bridge Construction

Product characteristics:

1. Put vertical bearing capacity, horizontal restoring force and damping (energy absorbing) these three characteristics into one ;

2. The hysteretic characteristic (load-deformation curve)of the bearing is plumper and the energy consumption is significant;

3. Rubber formula improving and equivalent damping ratio can reach more than 12%;

4. Low maintenance and management costs (no need of other damping devices);

5. Residual deformation is minimal after earthquake and do not need replacement;

6. The surface of high damping bearing is covered with rubber protective layer, which can protect the inner rubber from ozone and ultraviolet rays, and has better aging resistance. And decrease amplitude of equivalent damping ratio is less than 2% in 50 years;

7.HDR high damping rubber has low temperature dependence.And it can be widely used in different climatic regions;

8.HDR high damping rubber has superior creep properties as natural rubber;

9. Environmental and non-pollution.
Lead Rubber Bearing (LRB) for Building/Bridge Construction

 Technical parameter:

Vertical bearing capacity: 204kN - 21206kN

Design angle: 0.006rad and 0.008rad

Equivalent damping ratio: >10%

The displacement of the bearing: the design displacement of sliding bearing in bridge axial direction is ±100mm and ± 150mm.

The horizontal displacement of the bridge is ±30mm, and the normal shearing strain is 1.0, and the scale of earthquake is about 2.0.

Friction coefficient :the design friction coefficient of sliding bearing is 0.03.

Applicable temperature range: -40ºC-60`ºC

Basic performance

1. The energy absorption capacity of lead damper

Rubber is a kind of easy pull, press and deformation material. The bearing made only by rubber will deform greatly after loading .Engineering rubber bearing is composed of multilayer thin steel plate and overlay thin rubber. Steel plate has excellent binding effect on rubber vertical deformation for its high vertical compression rigidity. LRB bearing has low tensile rigidity, which is about 1/7 ~ 1/10 of compression rigidity.

2.The horizontal deformation capacity of LBR bearing
The steel plate can restrain the vertical deformation of rubber but has no effect on its horizontal deformation. At the same time, the lead can follow well of the deformation of bearing and absorb the seismic energy. The LRB bearing has stable horizontal property. Due to the existence of lead in LR bearing, it can limit the horizontal deformation of bearing.

3. Durability of LRB bearing 

Shock insulation rubble even after 100 years of use, it still can keep its inner rubber intact. After 10 years of use, the properties of LRB bearing are almost unchanged.


Question 1: Can the customer make a sample order?

Answer: Yes. We are willing to accept any sample order so as to check the quality of our water-stop.


Question 2: How long is the delivery time for the sample?

Answer A: It would be one day for any stocked sample

Answer B: It would be two days for any sample to be customized. 


Question 3: What is the minimum order quantity?

Answer A: It would be one meter of water-stop.

Answer B: Even if you only make a small order, we will try our best to help you as well. 


Question 4: Which express company do we often use to send samples?

Answer: We usually use DHL, UPS, FedEx or SF and it takes 3-5 days. 


Question 5: Which payment methods do we accept? 

Answer: We usually accept TT, L/C etc. 


If you want to customize our products or have any questions about the water-stop, please feel free to contact us!


Send your message to this supplier
Ms. Nancy Lee
Sales Manager
To: Ms. Nancy Lee

Enter between 20 to 4,000 characters.

This is not what you are looking for? Post a Sourcing Request Now