Set gear cacing iki digunakake ing reducer gear cacing, bahan gear cacing yaiku Tin Bonze lan poros yaiku baja paduan 8620.Biasane worm gear ora bisa nggiling, akurasi ISO8 ok lan poros cacing kudu digiling kanthi akurasi dhuwur kaya ISO6-7. Tes meshing penting kanggo piranti cacing sing disetel sadurunge saben pengiriman.