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Elastomeric Bearings

Name: Elastomeric Bearings
Brand: SANDHYA ENTERPRISES
Price: 5000.0 INR
Availability: InStock

Price 5000.0 INR/ Number

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MOQ : 1 Number

Elastomeric Bearings Specification

Cage Material
Not applicable (no cages)

Thickness
20 mm to 200 mm

Inside Diameter
As per design specification

Lubrication Type
Not required, maintenance-free

Precision Rating
Conforms to IRC:83/IS:3400 Standards

Bearing Type
Elastomeric Bridge Bearing

Material
Natural rubber or neoprene plus steel plates

Structure
Laminated elastomeric layers with steel plates

Seals Type
N/A (solid rubber/steel integration)

Number Of Rows
Single or multiple, as per requirement

Bore Size
Customizable, as per project

Outside Diameter
Up to 1500 mm or as specified

Limiting Speed
Not applicable for structural bearings

Load Capacity
Up to 5000 kN or custom

Operating Temperature Range
-40°C to +70°C

Shear Modulus
0.9-1.2 MPa

Vertical Rotation Capacity
Up to 0.02 rad

Shape
Rectangular, Square, or Circular

Compliance Standard
MORT&H, IRC:83, BIS IS:3400/IS:1337

Color
Black

Movement Accommodation
Horizontal displacement up to ±50 mm

Resistance
UV, ozone, and weather resistant

Application
Bridge, Flyover, and Building Structure Support

About Elastomeric Bearings

You're likely referring to elastomeric bearings a key component in bridge and structural engineering.

Lets break it down:

What Is an Elastomeric Bearing?

An elastomeric bearing (sometimes mistakenly called elostomeric) is a type of bridge bearing made from layers of rubber (elastomer) usually natural rubber or neoprene often reinforced with steel plates. These allow for controlled movement between structural elements.

Function and Purpose

Elastomeric bearings help with:

Load transfer: Carry vertical and horizontal loads from the bridge deck to the substructure.
Thermal expansion/contraction: Accommodate movement caused by temperature changes.
Vibration and shock absorption: Especially from traffic or seismic activity.
Rotation: Allow rotation due to loads or deflection.

Types of Elastomeric Bearings

Plain Elastomeric Bearings
- Just rubber pads
- Used for light-duty structures
Laminated Elastomeric Bearings
- Layers of elastomer and steel plates
- Higher load capacity and durability
Pot Bearings / Spherical Bearings
- Advanced versions used for very large spans or specialized movement

Common Specs

Parameter	Typical Value / Range
Material	Neoprene or Natural Rubber
Hardness	60 5 Shore A
Load Capacity	Depends on size, usually up to 1,000 kN+
Size Range	Varies by project needs
Movement Accommodation	20 mm to 100 mm or more
Temperature Resistance	-25C to +70C (standard neoprene)

Standards Followed

IRC:83 (Part II) Indian Roads Congress
AASHTO American Association of State Highway and Transportation Officials
BS EN 1337 European standard

Want help choosing a type for a specific project? Or need supplier info/spec sheets? Let me know how technical you want to get!

Purpose-Built for Structural Support

Elastomeric bearings provide crucial support for bridges, flyovers, and building structures. Engineered for optimal performance, they handle heavy vertical loads and accommodate alignment changes due to temperature variations, seismic shifts, or vehicular movement. Their laminated construction ensures distribution of stresses, enhancing structure stability and lifespan.

Outstanding Resilience and Low Maintenance

These bearings are built from high-grade elastomers and steel, offering resistance to UV light, ozone, and environmental degradation. Their solid, cage-free design requires no lubrication, making them virtually maintenance-free. This robust construction ensures consistent performance and reliability over years of service.

Customization for Diverse Project Needs

Available in square, rectangular, or circular shapes, these bearings can be tailored in size (up to 1500 mm outside diameter, 20-200 mm thick) and load capacity (up to 5000 kN or custom). Bore size and configuration are also customizable to suit unique engineering requirements, providing flexibility for a variety of projects across India.

FAQ's of Elastomeric Bearings:

Q: How do elastomeric bearings function in bridge and building support applications?

A: Elastomeric bearings are installed between bridge decks or building beams and their supports, enabling smooth accommodation of structural movements caused by loading, thermal expansion, or seismic activity. Their layered design efficiently distributes loads and allows for horizontal and rotational movement, safeguarding structural integrity.

Q: What is the process for selecting the right elastomeric bearing for a project?

A: Selection involves assessing project parameters such as load capacity (up to 5000 kN), required displacement (50 mm), rotation needs (up to 0.02 rad), shape, size, and compliance with standards like MORT&H, IRC:83, and BIS IS:3400/1337. Manufacturers tailor specifications such as diameter, thickness, and bore size to match engineering requirements.

Q: When should elastomeric bearings be used over other bearing types?

A: Elastomeric bearings are ideal when structures require resilience to movement, temperature fluctuations, and weather exposure, without the need for regular maintenance or lubrication. Their solid, cage-free form is especially suitable for bridges, flyovers, or buildings subjected to dynamic forces or environmental extremes.

Q: Where are these elastomeric bearings commonly installed in India?

A: These bearings are widely used in infrastructure and civil engineering across India, including new bridge constructions, flyover projects, and retrofits of existing building structures. They're supplied by approved dealers, manufacturers, and fabricators nationwide.

Q: What are the main benefits of using elastomeric bearings for structural applications?

A: Key advantages include high load-bearing capacity, excellent movement and rotation accommodation, weather, UV, and ozone resistance, as well as compliance with strict Indian standards. Their maintenance-free operation and adaptability to custom designs make them a reliable choice for long-term durability in critical infrastructure.

Q: How does the structure of the bearing contribute to its performance?

A: The laminated structure-integrating elastomeric layers and steel plates-prevents excessive deformation, evenly spreads loads, and resists environmental stresses. This ensures both flexibility for movement and robust strength for heavy-duty support in diverse conditions.