An Economical Choice - Plain Elastomeric Bearings
Plain elastomeric bearings, also known as non-reinforced elastomeric bearings, are exclusively made of natural rubber or neoprene (with better durability). They provide a low-cost choice for bridges with lighter bearing loads.
Features:
Plain elastomeric bearing
- Quality materials including natural rubber, neoprene complying with AASHTO standards.
- Allow for expansions and contractions of precast steel structure of bridges.
- Capable to control load distribution, meanwhile accommodate thermal and end-beam rotational movements.
- Vibration, sounds and shocks isolation.
- Avoid excessive load eccentricity and edge compression.
- Simple but robust structure.
- Lower price than laminated elastomeric bearing.
- High cost effectiveness.
- Minimal maintenance is needed.
Applications:
Load distribution & movement accommodation of plain elastomeric bearing
- Construction of flyovers.
- Machinery and pumps.
- Short-span bridges.
- Prefabricated structures.
- Leveling pads for girder bridges.
- Support commercial and industrial buildings.
- Petrochemical and power plants.
Details:
- Material: natural rubber, neoprene and others as your request.
- Thickness: 1/8” to 30” or custom thickness.
- Width: 36” to 48” or custom widths.
- Shapes: rectangular, square or round
- Hardness: 50 to 70 durometer complying with AASHTO.
- Standards: AASHTO, ASTM D4014, BS EN 1337or other standards according to your requirements.
- Physical properties:
| Material | Neoprene | Natural rubber | ||||
|---|---|---|---|---|---|---|
| 50 | 60 | 70 | 50 | 60 | 70 | |
| Hardness (Shore A) | 45 to 55 | 55 to 65 | 65 to 75 | 45 to 55 | 55 to 65 | 65 to 75 |
| Tensile strength (min) | 2250 psi | 2250 psi | 2250 psi | 2500 psi | 2500 psi | 2500 psi |
| Elongation (min) | 400% | 350% | 300% | 450% | 400% | 350% |
| Compression set (max) 22 hours | 35% at 212 °F | 35% at 212 °F | 35% at 212 °F | 25% at 158 °F | 25% at 158 °F | 25% at 158 °F |