ʻAi ilohiʻona:
1. Hāʻawi i nā raios hōʻemi nui no kahi mamao waena
2. ʻO ka hana maʻemaʻe a me ka maʻalahi
3. ʻAʻole hiki i ka huila ilo ke hoʻokele i kahi wor ke ʻole i hoʻokō ʻia kekahi mau kūlana
ʻO ka loina hana ʻo Worm Gear:
ʻO nā lāʻau ʻelua o ke kaʻa ilo a me ka hoʻokele ilo e kū pololei kekahi i kekahi; hiki ke manao i ka ilo he helix me ka niho hookahi (poo hookahi) a i ole kekahi mau niho (poo lehulehu) i eha ma ka helix ma ka cylinder, a ua like ka ilo me ka oblique gear, aka na kona mau niho i hoopili i ka ilo. I ka wā o ka meshing, hoʻokahi kawili ʻana o ka ilo e hoʻokele i ka huila ilo e kaʻa i hoʻokahi niho (single-end worm) a i ʻole kekahi mau niho (multi-end worm). rod), no laila ka ratio wikiwiki o ka hoʻoili ʻana i ka ilo = ka helu o nā poʻo o ka ilo Z1/ka helu o nā niho o ka huila ilo Z2.