Nrụpụta worm gears worm bụ shank na-enwe ma ọ dịkarịa ala otu eze zuru oke (thread) gburugburu pitch elu na ọ bụ onye na-akwọ ụgbọala worm wheel.Worm wheel bụ ngwo na ezé e gbuturu n'akuku ka a ga-ebugharị site na worm.The worm gear ụzọ eji. iji nyefee mmegharị n'etiti ogwe abụọ nke dị na 90 ° na ibe ha ma dinara n'ụgbọelu.
Ngwa worm gears:
Ndị na-ebelata ọsọ ọsọ, ngwaọrụ ndị na-emegharị emegharị na-eme ọtụtụ n'ime njirimara mkpọchi onwe ya, ngwaọrụ igwe, ngwaọrụ ndenye aha, ihe mgbochi yinye, ndị na-emepụta ihe wdg.