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The bulk structural material is a lightweight carbon/epoxy composite. The bearing race material is 440C stainless steel for wear resistance and hardness. Many features of existing spacesuit bearings were retained to minimize technical risk.

The thermoplastic material acts as a dielectric material between the layers of PZT; and adds durability to the final PZT-thermoplastic composite. Based on the mathematical characterization and fabrication technology developed during the course of past work, it is now possible to envision improved design concepts.