High Damping Bridge Rubber Bearing Lrb Lead Rubber Bearings for Building and Bridge

• Customization: Available
• After-sales Service: Technical Guidance
• Warranty: 2 Years After Leaving The Factory
• Model NO.: JT-BP01
• Certification: CE/RoHS
• Usage: Beam Bridge, Highway Bridge, Railroad Bridge
• Structure: Laminated Rubber Bearing
• Material: Lead Bearing
• Activity: Multi Direction Movable Bearing
• Surface Treatment: Hot Galvanizing or Painting
• Strength Tensile (MPa): ≥17
• Color: Orange, Grey, Blue, etc.
• Temperature: -40celsius-+60celsius
• Hardness: 60-70 Shorea
• Elongation at Break (%): ≥400
• Feature: Strong Bearing Capacity and Long Service Time
• MOQ: 10 Pieces
• Transport Package: According to Customer Needs
• Specification: Customized
• Trademark: HengJingGong
• Origin: Hengshui, Hebei, China
• Package Size: 35.00cm * 35.00cm * 15.00cm
• Package Gross Weight: 60.000kg

Product Description

Product Description

The lead-core rubber bearing is a high-performance support device specifically designed for bridge and construction projects. It combines high-quality rubber materials with a lead-core structure, providing excellent shock absorption and load-bearing capabilities. It is widely used in highway and railway bridges, as well as various large-scale construction projects, ensuring structural stability and safety.

Working principle

The lead rubber bearing has same mechanical properties with laminated rubber bearing. Besides, it has high damping property.

As we all know, the laminated rubber bearing has large displacement deformation in horizontal direction.

In the earthquake, this structure can separate top and bottom structure vibration, enlarge self vibration cycle and reduce seismic force. Besides, the lead core will be squeezed and yielded during the shear process to dissipate Seismic force.

Performance comparison between lead rubber bearings and ordinary rubber bearings

There are significant differences in damping performance between lead rubber bearings and ordinary rubber bearings. The damping coefficient of the former typically exceeds 15%, while that of the latter is generally below 5%. This excellent damping property allows lead rubber bearings to effectively extend the structural period of bridges and significantly reduce the acceleration response of the superstructure. Under seismic action, lead rubber bearings can significantly improve the stress state of the structure during the earthquake due to their unique mechanical properties, making them particularly suitable for being set in areas with a seismic intensity of 8 degrees or higher.

Feature

1.Outstanding Shock Absorption: The lead-core design effectively absorbs and dampens vibrations, significantly improving the comfort and safety of structures while reducing the impact of dynamic loads.

2.High Load-Bearing Capacity: The high density of lead allows the bearing to support greater loads, making it suitable for heavy-duty bridges and buildings.

3.Durability: Made from high-quality rubber materials, it exhibits excellent corrosion resistance and aging performance, suitable for various environmental conditions.

4.Easy Installation and Maintenance: The lightweight design allows for convenient installation and removal, reducing construction and maintenance costs.

Specification

No	Test Item		Technology Requirement	Unit
1	Hardness (Shore A)		60±5	HD
2	Tensile Strength		≥ 18	MPa
3	Elongation At Break		≥ 550	%
4	Compression Set	709 °C × 24 H	≤ 30	%
5	Brittleness Temperature		≤ -50	°C
6	Ozone Aging(50 PPHM, 20% Elongation, 40 °C × 48 H)		No Creak	–
7	Air Aging	Hardness Change (Shore A)	≤ +6	HD
		Tensile Strength Chang Rate	≤ 12	%
	-	Elongation At Break Chang Rate	≤ 20	%

Packaging & Shipping

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.