Model No.: LRB
Model NO.: LRB
Certification: CCC, SGS, CE, ISO
Material: Neoprene or Natural Rubber
Shape: Rounded and Rectangle
Surface Treatment: Yes
Usage: Construction, Building,Bridge
Lead Core Isolator for Building Constructions
Lead Core Isolator consist of a laminated rubber and steel bearing with steel flange plates for mounting to the structure. 90% of our isolators have an energy dissipating lead core.
The rubber in the isolator acts as a spring. It is very soft laterally but very stiff vertically. The high vertical stiffness is achieved by having thin layers of rubber reinforced by steel shims. These two characteristics allow the isolator to move laterally with relatively low stiffness yet carry significant axial load due to their high vertical stiffness. The lead core provides damping by deforming plastically when the isolator moves laterally in an earthquake.
Isolators from 200 to 1200 mm in diameter and capacities of up to 3000 tons are
manufactured. Custom dimensions are available for special applications.
The shims for isolators are cut to exacting tolerances by laser. The steel mounting plates are machined by computer controlled milling machines that give high production throughput and accuracy. Molding each bearing takes 8 to 48 hours depending on the size of the bearing. The curing phase is continuously monitored to ensure that the rubber is uniformly cured throughout the bearing
|Standard||JT/T4-2004||BS5400 Section 9.2|
|Rubber||Natural Rubber|| Neoprene |
| Natural |
| Neoprene |
|Tensile Strength (M Pa)≥||18||17||17||15.5|
|Ultimate Elongation (%)≥||450||400||450/400/350||400/350/300|
|Heat Resistance||Test Condition||70oC×168h||100oC×70h||70oC×168h||100oC×48h|
|Change in Hardness||-5,+10||0,+10||<10||<15|
|Rate of Tensile Strength Reduction(%)||<15||<15|
|Rate of Ultimate||<20||<40||<20||<40|
|Ozone Resistance||25~50pphm,20% strain||25~50pphm,20% strain|
|No Cracks||No Cracks|
Contact us if you need more details on Lead Core Rubber Bearing. We are ready to answer your questions on packaging, logistics, certification or any other aspects about High Damping Rubber Bearing、Anti-Seismic Bridge Bearing. If these products fail to match your need, please contact us and we would like to provide relevant information.