Thegiraangiraha taajkawaa qayb gudbinta xudunta u ah dhidibka wadista baabuurta Asal ahaan, waa lammaane isku-dhafan oo isku-dhafan - giraangiraha taajka ah (qalabka taaj-qaabeeya) iyo "geeska xagasha" (qalabka wadista bevel), oo si gaar ah loogu talagalay baabuurta ganacsiga, baabuurta bannaanka ah, iyo moodooyinka kale ee u baahan awood xooggan.
Doorka udub-dhexaadku waa laba arrimood:
1. 90° isteerinka: u rogida awooda jiifka ah ee shafka wadista awooda toosan ee loo baahan yahay taayirrada;
2. Iska yaree xawaaraha oo kordhi torque: Iska yaree xawaaraha wareegtada oo xooji qulqulka, awoodna u siinaysa gaadhigu inuu bilaabo, fuulo jaranjarada, oo jiido culaysyo culus.
Waqtiga boostada: Nov-22-2025