Laminated Rubber Elastomeric Seismic Isolation Bridge Bearing Pads for Bridge and Building of Seismic Isolator

• Customization: Available
• After-sales Service: Installation Guide
• Warranty: 2 Years
• Model NO.: Rubber bearing
• Certification: DIN, JIS, GB, BS, ASTM, AISI
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge
• Structure: Laminated Rubber Bearing
• Material: Natural Rubber, Neoprene , Q235 Steel Plate
• Activity: Fixed Bearing
• Color: Black
• Working Temperature: -40℃~+60℃
• Business Type: Factory
• Shape: Rectangular
• Dimention: 300mm * 52mm
• Application: Beam Bridge, Highway Bridge, Railroad Bridge
• Displacement: ±50mm
• Vertical Pressure: 100-10000kN
• Transport Package: on The Pallet with PE Film
• Specification: 150*150*20mm, Accept customization
• Trademark: HENGJINGGONG
• Origin: Made in China
• HS Code: 4016999090
• Production Capacity: 10000 / Month
• Package Size: 30.00cm * 30.00cm * 8.00cm
• Package Gross Weight: 30.000kg

Product Description

Product Description

Product Introduction

    Bridge rubber bearing is a critical component connecting bridge superstructure to substructure piers. Its main function is transmitting bridge loads to piers while accommodating rotation and displacement caused by temperature and loads. This product features a rubber-steel composite structure with high load capacity, excellent deformation performance and superior durability, widely used in highway and railway bridge projects.

Material

    Main material: Natural rubber (NR) or Chloroprene rubber (CR), hardness 60±5 Shore A, tensile strength ≥17MPa. Embedded reinforcement steel: Q355B low-carbon steel, 2-8mm thick, hot-dip galvanized. Bonding system: Chemlok adhesive ensuring rubber-steel peel strength ≥7kN/m.

Process
    Rubber mastication → Compounding → Steel plate shot blasting → Adhesive coating → Rubber-steel lamination → Flat vulcanization (155℃×45min) → Anchor assembly → Final inspection. PLC temperature control at 18MPa pressure ensures stable bonding strength.

Functions

*Load Transmission: Transfer dead/live loads from girder to pier

*Rotation Accommodation: Adapt to girder end rotation 0.02-0.04rad

*Displacement Coordination: Meet longitudinal/transverse/multi-directional movement (±50-±300mm)

*Shock Absorption: Absorb vehicle impact and seismic energy

*Height Adjustment: Some models support elevation adjustment

Product Advantages
*Stable Performance: Passes 2 million fatigue cycles with <5% performance degradation
*Cost Effective: 40% cheaper than imports, performance matches top international brands
*Sufficient Stock: Over 5,000 pieces of regular models in stock for same-day shipment
*Technical Support: Provides selection calculation, installation guidance and periodic inspection
*Flexible Customization: 48-hour drawing delivery, supports non-standard sizes and special performance
*Full Certifications: CCPC certified with complete type test reports

Specification

Technical index		Neoprene Rubber	Natural Rubber
Hardness(IRHD)		60±5	60±5
Strength Tensile(Mpa)		≥17	≥18
Elongation at break (%)		≥400	≥450
Brittleness temperature(ºC)		≤40	≤-50
Brittleness temperature(ºC)		≤15	≤30
Resistance to ozone aging test (test conditions,20% elongation,40ºC×96h)		100ppmm	25ppmm
		No cracking	No cracking
Hot air aging test (The biggest change comparing with before aging numerical)	Test conditions (ºC×h)	100×70	70×168
	Strength Tensile (%)	-15	-15
	Elongation at break(%)	-40	-20
	Variation in hardness(IRHD)	0,+10	-5,+10
Strength of rubber and steel Peel adhesive (KN/m)		>10	>10
Strength of PTFE Slip Sheet and rubber (KN/m)		>7	>7

Detailed picture

Customer Visit

Packaging & Shipping

Company Profile

    Hengshui Jingtong Rubber Co., Ltd., located in Hebei Province's Hengshui City, is a professional manufacturer of engineering rubber products. Our product range includes bridge bearings, expansion joints, water stop strips, water stop belts, inflatable cores, building deformation joint device and water plugs, which are widely used in bridge, tunnel, water conservancy, and power engineering projects. The company boasts advanced technology and mature processes to ensure reliable product quality.

    We have a professional technical team and a comprehensive after-sales service system to ensure customers receive high-cost-performance products and attentive service. Hengshui Jingtong Rubber Co., Ltd. is committed to continuous innovation to meet market demands and looks forward to esta  blishing long-term cooperative relationships with customers from both domestic and international markets.

FAQ

1.When can I get the quotation?
A:We usually quote within 24 hours after we get your inquiry.

2.How long can I expect to get the sample?
A:The samples will be ready for delivery in 5-10days. The samples will be sent to you via express and arrive in 5-7days.

3.How long is the delivery time
A:Usually 10-15 days, depending on the quantity purchased.

4.How can I get a sample to check your quality?
A:After negotiating the price, we will provide you with samples for testing.

5.what can you buy from us?
Bridge Bearing Pad,Seismic isolation bearing,Expansion Joint,Rubber Inflatable Airbag,Waterstop Belt/Strip,Steel Expansion Joint,Butyl Tape

6.What's payment term?
A:T/T, L/C at sight, Western Union

7. Do we have quality guarantee?
Of Course!
--from raw material to manufacturing, we have rigid quality control.
--before delivery, we have strict quality inspection.
--Third party inspection is also available at your request.
--We also have ISO, CE certificates.