Ts'ebetso ea metallurgy hona joale e ka hlahisa mefuta e mengata ea likere: likere tsa spur, likere tsa helical, likere tse habeli, li-pulleys tsa mabanta, likere tsa bevel, likere tsa sefahleho, likere tse otlolohileng tsa bevel, likere tsa spiral bevel le likere tsa hypoid.Hangata basebelisi ba khetha metallurgy ea phofo ho etsa likere ka lebaka la melemo ea eona e mengata ea theknoloji:
• Fana ka profil ea 'nete ea meno le radius e felletseng.
• Ho bonolo ho kenya likoti tse fokotsang boima ba 'mele, kahoo ho fokotsa boima ba likarolo.
• Hobane thepa e na le porous, e thusa ho khutsisa mochine o mathang (ho hlephileng ho tla fokotsa molumo) le ho etsa hore e itšebetsa (ka ho qoelisoa ka oli).
•Lisebelisuoa li ka kopanngoa le lisebelisoa tse ling tsa mochine (joaloka lik'hamera, li-ratchets, likoloi tsa koloi kapa lisebelisoa tse ling) hore e be karolo e le 'ngoe.
• Hoa khoneha ho etsa gear e nang le radius k'honeng e sa boneng, ka hona ho felisa ho lokolloa ha undercut e hlokahalang bakeng sa ho itšeha le ho fana ka matla a eketsehileng a radius.
•Ho batla ho se na mochini kapa ha ho hlokahale, mme sekhahla sa tšebeliso ea thepa se haufi le 100%.
• Li-gear tse nang le li-shafts tse kentsoeng li ka hlahisoa, ebang ke li-trunnions tse khutšoanyane kapa ka ho kopanya litšepe tse entsoeng ka mochine ho likere nakong ea ts'ebetso ea sintering.