Jingtong Rubber Isolator Bearing (LRB) , Lead Core Bridge Rubber Bearing

• After-sales Service: 5 Year
• Warranty: 5 Year
• Certification: DIN, JIS, GB, BS, ASTM, AISI
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge
• Structure: Pull Pressure Bearing
• Material: Lead Bearing
• Model NO.: JT/T822-2011
• Application: Building, Bridge, Highway Bridge
• Shape: Round, Rectangular
• Transport Package: in Bag, on Pallet
• Specification: color: black, orange, etc.
• Trademark: JINGTONG
• Origin: Hebei, China
• Production Capacity: 10000

Product Description

Jingtong  rubber Isolator bearing  (LRB) ,  lead core bridge rubber bearing
This kind product includes: Elstomeric Seismic protection isolator for bridge and building. It can absordb earthquake energy effectively by way of rubber's elasticity and Lead's restorability. Products comply with:JT/T822-2011 Lead rubber bearing isolator for highseimic protection isolator for buildings.
 
Features
1)Stiff ands strong in vertical direction but flexible in horizontal direction.
2)Absorb earthquake-generated force by changing the bearing's shape.
3)Allow the building to retain their original shapes and position owing to the high elastic force of rubber 
4) Capable to adjust damping amount just by changing the number of lead plugs
5)Easy to install without a separated damper
6) Low maintenance.




Application
curved bridge
straight bridge
skew bridge 
city overpass bridge project
LRB Dimension Table

Size  a or do (mm)	Thickness	Thickness	Modulus of second shape	Ratio of Lead core area to bearing area Ap/A(%)
	Internal Single Rubber Layer  t1 (mm)	Internal Single  Layer  t1 (mm)
400	20≥t1≥11	≥3	≥4	≥3	≤10
450	20≥t1≥11
500	20≥t1≥11
600	25≥t1≥13
650	27≥t1≥14
700	29≥t1≥15
750	31≥t1≥16
800	33≥t1≥17
850	35≥t1≥18
900	37≥t1≥19
950	39≥t1≥20
1000	41≥t1≥21
1050	43≥t1≥22
1100	45≥t1≥23
1150	47≥t1≥24
1200	50≥t1≥25
1250	52≥t1≥27
1300	54≥t1≥28
1350	56≥t1≥29
1400	58≥t1≥30
1450	60≥t1≥31
1500	62≥t1≥32

In table :a-Long  side size of Square Bearing internal, b-Short side size

Package & Delivery 
1. packed in bag and then on pallet 
2.or as your request 
3. delivery within 7 days after payment 
4.usually transport by  sea