Custom

The suggested materials for the worm are hardened steel and bronze for the worm gear. Nevertheless, depending on the software, unhardened steel worms can run sufficiently and much more economically on cast iron worm gears rated at fifty%. In addition to metal and hardened metal, worms are obtainable in stainless steel, aluminum, bronze, and nylon worm gears are available in steel, hardened steel, stainless metal, aluminum, nylon, and non-metallic (phenolic).