| Customization: | Available |
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| Certification: | ASTM |
| Usage: | Highway Bridge |
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Elastomeric bearings act as elastic load-transferring connections between structural elements which must be able to move or rotate relative to each other. They can be designed to transmit vertical and horizontal forces from the superstructure to the substructure, without constraints. They also accommodate rotations about any axis and-where appropriate-movements of the superstructure.
Elastomeric bearings are made from high-quality elastomer with or without reinforced steel plates. The elastomer and steel plate are chemically bonded in a vulcanization process, forming a shear and pressure resistant connection. The steel reinforcing plates resist any arising tensile forces, and are fully enclosed in elastomer and thus permanently protected from corrosion.| Physical Properties | ||||
| Physical Properties | CR | NR | EPDM | |
| Hardness | 60±5 | 60±5 | 60±5 | |
| Tensile Strength/Mpa ≥ | 17 | 18 | 15 | |
| Elongation at Break/% ≥ | 400 | 450 | 350 | |
| brittleness temperature(ºC) ≤ | -40 | -50 | -60 | |
| EN Compression Set(70ºC*24h)/% ≤ | 15 | 30 | 25 | |
| Ozon Resistance(20% elongation, 40ºC*96h) | 100*10-3 | 25*10-8 | 100*10-8 | |
Air Oven Aging(Max change, comparing with datas without aging) |
Test Conditions(ºC*h) | No Crack | No Crack | No Crack |
| Tensile Strength(%) ≤ | 100*70 | 70*168 | 100*70 | |
| Elongation at Break/% ≤ | 15 | 15 | 15 | |
| Hardness Change | 40 | 20 | 40 | |
| Peel Strength between Rubber and Steel(kN/m) ≥ | 0~+10 | -5~+10 | 0~+10 | |
| Peel Strength between Rubber and PTFE(kN/m) ≥ | 10 | 10 | 10 | |
| Mechnical Properties | |||
| Ultimate Compressive Strength Ru(MPa) | ≥70 | ||
| Measure of Compressive Elastic Mould E1(MPa) | E±E*30% | ||
| Measure of Shear Elastic Mould G1 (MPa) | G±G*15% | ||
| Measure of Shear Elastic Mould after Aging G2 (MPa) | G1±G1*15% | ||
Measure Corner Tangent tgθ |
Concrete Bridge | ≥1/300 | |
| Steel Bridge | ≥1/500 | ||
| Measure Friction Coefficient μf (with grease) | ≤0.03 | ||
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