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Square Llead Core Beairng ( LRB ) Elastomeric Bearing Pads Bridge Rubber Bearing Base

China Square Llead Core Beairng (LRB) Elastomeric Bearing Pads Bridge Rubber Bearing Base, Find details about China Elastomeric Bearing Pads, Bridge Rubber Bearing Base from Square Llead Core Beairng (LRB) Elastomeric Bearing Pads Bridge Rubber Bearing Base

Model NO.
LRB
Activity
Fixed Bearing
Trademark
Huagong
Transport Package
in Bulk
Specification
Custom based on your requirement
Origin
China
Model NO.
LRB
Activity
Fixed Bearing
Trademark
Huagong
Transport Package
in Bulk
Specification
Custom based on your requirement
Origin
China
Product Description

Square Llead Core Beairng (LRB) Elastomeric Bearing Pads Bridge Rubber Bearing Baseclassification and representation methods of  elastomeric bearing pads :

(1) Classification as shapes of bridge bearings 
    a.Rectangular bridge elastomeric bearings
    b.Circular bridge elastomeric bearings

 (2) Classification as applicable temperature of adhesive varieties of bridge bearings
     a.Neoprene bearing(applicable temperature -25~60°C)
     b.NR bearing (applicable temperature -35~60°C)
     c.EPDM bearing (applicable temperature -40~60°C )

 (3) Classification as structure style of neoprene bearing
     a.General plate type neoprener bearing
     b.Tetrafluoro sliding plate type neoprene bearing.

elastomeric bearing can be set between steel plates to avoid direct contact to the structure,
The bearing steel plates can be additionally anchored to the concrete /steel structure by studs /bolts.
 

Material

elastomer
The elastomeric used in the manufacturing of lead rubber bearing should be specified in the project documentation as either natural rubber (NR) or chloroprene rubber (CR) as the raw polymer.
Physical and mechanical propertied of elastomer
CharacteristicsRequirements Test Methods
G Modulus (MPa)0.70.9a1.15ISOEquivalent national standard
Tensile Strength (MPa)
Molded Test Piece
Test Piece from Bearing
Minimum elongation at break(%)
Molded Test Piece
Test Piece from Bearing
≥16
≥14


450
400
 		≥16
≥14


425
375		≥16
≥14


300
250


ISO 37
type2


GB/T
528-1998(Type 2)
Minimum Tear Resistance(KN/m)
CR
NR

≥7
≥5

≥10
≥8

≥12
≥10
ISO 34-1
Trouser
(Method A)

GB/T 529-1999
(Pants type)
Compression Set(%)
24h; 72ºC		CR ≤15
NR≤30		ISO 815
φ29×12.5mm,
Spacer: 9.38mm,-25%
GB/T7759-1996
Accelerated Ageing
(Maximum change from unaged value)
-Hardness(IRHD)
NR 7 d , 70ºC
CR 3 d, 100ºC
-Tensile strength(%)
NR 7 d , 70ºC
CR 3 d, 100ºC
-Elongation at break(%)
NR 7d , 70ºC
CR 3d, 100ºC


-5+10
±5

±15
±15


±25
±25



ISO 48
ISO 188



GB/T
6031-1998
GB/T
3512-2001
Ozone Resistance
Elongation: 30% - 96h
40ºC±2ºC
NR 25pphm
CR 100pphm		No cracks


ISO 1431-1


GB/T 7762-2003

Product Description
Bridge basin type neoprene rubber bearings for bridges
a. Transmit the vertical loads due to permanent andaccidental effects; it is possible to cover a wide range of loads about up to 22000 kN b. Transmit the horizontal loads with or without elastic response c. Allow rotation as per a spherical hinge d. Capacity of horizontal displacement e. Suitable for all structures steel and concrete bridges and buildings f. High durability and no maintenance.
Technical IndexNatural Rubber (-40ºC-60 ºC)Neoprene Rubber(-25ºC-60ºC)
Hardness(IRHD)60±560±5
Tensile Strength(MPa)≥18≥17
Elongation at Break(%)≥450≥400
Brittleness Temperature(ºC)≤ -50≤ -40
Compression Set(70ºC×24h)(%)≤ 30≤ 15
Ozone Aging Resistance(20% strain,40ºC × 96h)25 pphm100 pphm
No CracksNo Cracks
Hot Air AgingTest Condition(ºC × h)70 × 168100 × 70
Max Change in Tensile Strength(%)- 15-15
Max Change in Elongation at Break(%)- 20-40
Max Change in Hardness(IRHD)-5 , +100 , +10
Bond Strength Between Elastomer and Steel Plate(KN/m)>10>10
Bond Strength Between Elastomer and PTFE(KN/m)>7>7


Physical Properties
Technical IndexNatural Rubber (-40ºC-60 ºC)Neoprene Rubber(-25ºC-60ºC)
Hardness(IRHD)60±560±5
Tensile Strength(MPa)≥18≥17
Elongation at Break(%)≥450≥400
Brittleness Temperature(ºC)≤ -50≤ -40
Compression Set(70ºC×24h)(%)≤ 30≤ 15
Ozone Aging Resistance(20% strain,40ºC × 96h)25 pphm100 pphm
No CracksNo Cracks
Hot Air AgingTest Condition(ºC × h)70 × 168100 × 70
Max Change in Tensile Strength(%)- 15-15
Max Change in Elongation at Break(%)- 20-40
Max Change in Hardness(IRHD)-5 , +100 , +10
Bond Strength Between Elastomer and Steel Plate(KN/m)>10>10
Bond Strength Between Elastomer and PTFE(KN/m)>7>7

 

Packaging & Shipping

Packing:25kgs each plastics composite sack.

Square Llead Core Beairng (LRB) Elastomeric Bearing Pads Bridge Rubber Bearing Base

Company Profile

Square Llead Core Beairng (LRB) Elastomeric Bearing Pads Bridge Rubber Bearing Base

Our Advantages

Square Llead Core Beairng (LRB) Elastomeric Bearing Pads Bridge Rubber Bearing Base

FAQ

Q1. Can you provide OEM & ODM service?
A:  Yes.

Q2. What's your Trading Term ,Payment Term?
A: 1)EXW,FOB, CFR or CIF.
   2)T/T or L/C at sight by production order,accept Western Union or Paypal for sample freight.

Q3. Is the samples free?
A: Sample is Free, but the freight will refund you when your big order.

Q4. What's your MOQ?
A: 1 PC is available to our company,but the freight cost for unit price will be very high.

Q5. Can we print our own logo or brand on the products?
A: Welcome, you can send your own design of LOGO, we can make new mold and print or label any LOGO for you.

Q6. What's your nearby sea port?
A: Shanghai or Ningbo port in China.

Q7. What's carrier in your plastic industry?
A: PE,PP,PBT,PET,PA,PS,PC,PVC,ABS,EVA,TPE,TPU,TPR,TPV,PLA etc.

Q8. What's material of your rubber?
A: HNBR,NBR,NR,FKM,EPDM,SIR,PU,ACM,FVMQ,SBR,CR,IIR and so on.

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