We develop, produce and market innovative linear power transmission products including ball screws with rolled threads designed specifically to address the needs of potential OEM applications: Carry and Carry Speed-line b......We develop, produce and market innovative linear power transmission products including ball screws with rolled threads designed specifically to address the needs of potential OEM applications: Carry and Carry Speed-line ball screws Speedy high-helix lead screws Rondo round thread lead screws Contract work We also manufacture customer-specific parts with a choice of rolled threads. Our specialty Thread rolling is the core expertise of Eichenberger Gewinde AG. Not surprisingly, the Company utilizes this process to form the thread profiles of all the screws it makes. Thread rolling (often also referred to as thread milling) is the cold forming of the surface of round workpieces. The thread form is produced by causing a radial dynamic force to be exerted between the two rotating rolling dies that form the workpiece. As the roll die profile penetrates the workpiece surface, the material in cold state is pressed all the way down into the root diameter of the thread roll die and is therefore rolled according to nominal value. Advantages of thread rolling: significant increase in hardness through cold forming excellent surface smoothness on thread flanks and in ground radius reduced notch sensitivity no interrrupted swalfe as in machine-ground threads excellent dimensional accuracy rational manufacturing process extremely cost-effective especially in large production batches