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What are Sorbtex bearing pads ?

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Time tested bearing pads for bridges and buildings.


SORBTEX material is composed of multiple layers of the highest quality cotton-polyester fabric duck impregnated with oil resistant synthetic rubber with approximately 64 layers of rubber impregnated duck per one inch of thickness.

SORBTEX has a hardness of 90 shore "A" and is manufactured to military Specification MIL-C-882.  SORBTEX has a minimum ultimate compression strength of 10,000 psi. ( 68.94 Mpa ) and is commonly used in many heavy load vibration and shock damping applications.  SORBTEX is also used as a structural bearing pad and commonly has PTFE laminated to the top surface to be used in conjunction with a sole plate that has a polished stainless steel surface to slide against the PTFE to make a cost effective simple expansion bearing.

SORBTEX structural bearings are able to handle compressive loads of 2500 psi. ( 17.23 Mpa ) at non-uniform load conditions up to 0.025 radians.


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