SA-47® Random Oriented Fibre Bearing Pad - Bearing Pad
Verified by manufacturer 6 months ago
SA-47® Bearing Pads are made from masticated rubber using a blend of recycled rubber compounds and synthetic fibre reinforcement.
Application
SA-47® ROF Bearing pads have been widely used in construction applications since 1947. Typical applications include:
- Structural Bearings
- Precast/prestressed Concrete Structures
- Bridges
- Masonry Pads
- Railway Tie Pads
- Lamp Post Pads
- Railcars
Description
The random orientated fibres (ROF) within the SA-47® bearing pad provide enhanced compressive strength, stiffness, and tensile strength when compared to unreinforced or virgin bearing pad materials.
These pads provide compensation for surface irregularities and non-parallel load bearing surfaces. They can also be provided with a Teflon® surface for use in expansion bearings and pipe slides.
SA-47® is impervious to most oils and resistant to the effects of steam, water, mildew, and brine. Other features and benefits of SA-47® bearing pads are as follows:
- Distributes load between to structural elements evenly
- Allows for small rotations
- Reduces electrolytic action between dissimilar metal elements
- Twice the compressive load of plain neoprene/nitrile materials
- Provides vibration and shock isolation in structural applications
- Meets most state DOT specifications
- The product does not have a sliding surface, accounts for rotation and uneven surfaces, and potentially even a small amount of horizontal movement through material deformation
General information
Color | Black |
Finish | Natural |
Material | Rubber Guidance for specification option: Fibre reinforced masticated rubber composite. |
Shape | Rectangle Circle Crescent Octagon Oval |
Length | Bespoke |
Width | Bespoke |
Height | Bespoke Manufacturer guidanceThicknesses available: 6.2mm, 12.7mm, 19.1mm and 25.4mm. |
Warranty description | One year |
Uniclass | |
CAWS | E40/445 Insulating load transfer systems E40/445 Insulating load transfer systems E40/440 Load transfer systems |
Specification data - Sliding surface bearings
Allowable movement of sliding bearings | No sliding surface, small amount of horizontal movement through material deformation.Guidance for specification option: Accounts for rotation and uneven surfaces. |
Execution | Installing sliding surface bearings. |
Thickness | 3.2 mm. 6.4 mm. 9.5 mm. 12.7 mm. 25.4 mm. |
Hardness (shore A) | To ASTM D2240, 80 ±5. Guidance for specification option: ±10. |
TensileStrength | To ASTM D412, 754 psi. Guidance for specification option: Minimum ±25%. |
Elongation | To ASTM D412, 15%. Guidance for specification option: Minimum (±25%). |
Tear strength | To ASTM D624, 150 psi. Guidance for specification option: Minimum. |
CompressiveStrength | To ASTM D2137, 8000 psi. |
Sustainability data
Contains Red List materials | No |
Country of material origin | United States |
Country of product manufacture | United States |
Material | Rubber Guidance for specification option: Fibre reinforced masticated rubber composite. |
Recyclability | Material is already composed of mostly recycled rubber compounds, and therefore likely unable to be further recycled. |
Recycled contentAs defined in clause 7.8 of BS EN ISO 14021 | 90 % |
Literature
SA-47 Bearing Pads
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