Design

While AASHTO specifications allow one design approach (Method “A”, Section 14), many states have super­imposed their own limitations on the design process. Local requirements should be checked before commencing design.

Materials

The cotton-duck fabric pads used in our bearings conform to AASHTO Section 18.4.9.1 and any other state specifications for bearings.

Other material specifications include ASTM A240 Type 304 and Type 316 stainless steel with a #8 mirror finish and ASTM D4894 for the PTFE.