The spur gear shaft ndiye gawo lofunikira kwambiri lothandizira komanso lozungulira pamakina omanga, omwe amatha kuzindikira kusuntha kwa magiya ndi zida zina, ndipo amatha kufalitsa torque ndi mphamvu mtunda wautali.Ili ndi ubwino wa kufala kwapamwamba, moyo wautali wautumiki komanso kapangidwe kameneka.Yakhala ikugwiritsidwa ntchito kwambiri ndipo yakhala imodzi mwazinthu zofunika kwambiri pakufalitsa makina omanga.Pakalipano, ndi chitukuko chofulumira cha chuma cha m'nyumba ndi kukula kwa zomangamanga, padzakhala funde latsopano lofuna makina omangamanga.Kusankhidwa kwa zida za shaft ya giya, njira yochiritsira kutentha, kuyika ndi kusintha kwa makina opangira makina, magawo a hobbing process, ndi chakudya zonse ndizofunikira kwambiri pakukonza komanso moyo wa shaft ya gear.