1. Phekolo ea mocheso ke ntho ea bohlokoa le e rarahaneng ea tlhahiso ea lisebelisoa, e amang haholo ts'ebetso ea mochine o mong le o mong ho fetisetsa matla kapa ho sisinyeha ho likarolo tse ling tsa kopano.Kalafo ea mocheso e ntlafatsa ts'ebetso le ho lelefatsa bophelo ba likere tse sebetsang ka ho fetola lik'hemik'hale tsa tsona, metallurgical le 'mele.Mehaho ena e khethoa ka ho nahana ka geometry ea gear, litlhoko tsa phetisetso ea matla, likhatello lintlheng tse fapaneng ka har'a lisebelisoa tse tlas'a mojaro, sekhahla sa potoloho ea mosebetsi, mefuta ea thepa, moralo oa likarolo tsa ho nyalana le maemo a mang a ts'ebetso.

2. Phekolo ea mocheso e ntlafatsa thepa ea 'mele, e kang ho thatafala holimo, e fanang ka ho hanyetsa ho apara ho thibela ho roala habonolo holim'a leino le ho jara libaka;Phekolo ea mocheso e boetse e ntlafatsa bophelo ba mokhathala oa gear ka ho theha khatello ea maikutlo e ka tlas'a lefatše ho thibela ho kopana ho hoholo ho meno a gear Ho baka khatello ea maikutlo le deformation.Tsona likhatello tsena tse hatellang li thibela ho khathala ho hloleha mokokotlong oa gear ka lebaka la ho kobeha ha cyclic.

3. Lintho tsa 'mele tse kang boima ba holim'a metsi, boima ba mantlha, botebo ba holim'a metsi, ductility, matla, ho hanyetsa ho apara le khatello ea khatello ea khatello ea kelello e ka fapana haholo ho itšetlehile ka mofuta oa phekolo ea mocheso e sebelisoang.Bakeng sa mofuta ofe kapa ofe o fanoeng oa phekolo ea mocheso, liphetho li ka lokisoa ho finyella litlhoko tse khethehileng tsa kopo ka mekhoa e fapaneng ea mekhoa e kang mohloli oa mocheso, mocheso, nako ea potoloho, sepakapaka, mokhoa oa ho tima, le li-cycle tsa mocheso.