Ngā taputapu porotakaKo te hanga rauemi tatau, e whakamahia whānuitia ana mō te tuku mana o te pou whakarara, me tatau tika kia pai ai te mahi. Ko ngā tawhā matua hei whakaaro ko te ōwehenga taputapu, te diameter pitch, me te maha o ngā niho taputapu. Ko te ōwehenga taputapu, e whakatauhia ana e te ōwehenga o te maha o ngā niho i runga i te taputapu taraiwa ki te taputapu taraiwa, ka pā tika ki te tere me te taipana o te pūnaha.
Hei tatau i te diameter o te poka, whakamahia te tātai:
Diameter o te Pitch=Diameter Pitch/Tau o ngā Niho
ko te diameter pitch te maha o ngā niho mō ia inihi o te diameter o te taputapu. Ko tētahi atu tātaitanga matua ko te waeine o te taputapu, e homai ana e:
Module=Tau o ngā Niho/Diameter o te Pitch
He mea nui te tatau tika i te āhua o ngā niho me te mokowā hei ārai i ngā raruraru honohono me te whakarite kia maeneene te mahi. Hei tāpiri, he mea nui te tirotiro i te tika o te tūnga o ngā taputapu me te whakahokinga mai o te taputapu kia mau tonu ai te mahi me te roa o te wā. Ka āwhina ēnei tataunga ki te hoahoa i ngā taputapu he pai, he pakari, ā, he rite ki tā rātou whakamahinga.
BELONNgā Taputapu HīkoiHe rite ki ngā taputapu whīra engari ko ngā niho kei te koki ki te pou, kaua ki te whakarara, pērā i te taputapu whīra. He roa ake ngā niho whakahaere i ngā niho o te taputapu whīra he rite te whānui o te piko. Nā ngā niho roa ake i rerekē ai te whai a ngā whīra helical mai i ngā taputapu whīra he rite te rahi.
Ka kaha ake ngā niho nā te mea he roa ake ngā niho
Mā te pa nui o te mata ki ngā niho ka taea e te taputapu porowhita te kawe i te kawenga nui atu i te taputapu whīra.
Ka whakaitihia te whai huatanga o te taputapu porowhita e te mata roa o te pa e whakaritea ana ki te taputapu whīra.