Materials

The elastomers used in our bearings conform to state and/or AASHTO specifications for bearings. Their minimum physical characteristics are as shown in Table 2.

Additional physical characteristics may be required. Use of polychloroprene (neoprene) or polyisoprene (natural rubber) is influenced by factors such as temperature, cost, and slippage. Other elastomers may be recommended for special applications.

Reinforcing plates (or shims) typically are made from rolled mild steel such as ASTM A570 or A1011 (or equivalent). Other metals can be supplied on special order.