Ma spiral bevel gear ndi mtundu wa zida za bevel zomwe zimapangidwira kufalitsa mphamvu ndikuyenda pakati pa mitsinje yodutsana pamakona osiyanasiyana.Amakhala ndi mawonekedwe a mano a helical omwe amapereka magwiridwe antchito osalala, opanda phokoso, komanso mphamvu zazikulu komanso zolimba kuposa zida zachikhalidwe zowongoka.Magiya a Spiral bevel amagwiritsidwa ntchito kwambiri pamakina akumafakitale, kusiyanasiyana kwamagalimoto, komanso kugwiritsa ntchito magetsi omwe amafunikira torque yayikulu komanso kulondola.Amapangidwa kuti azitumiza mphamvu moyenera ndikuchepetsa kukangana ndi kuvala, kuwapanga kukhala odalirika komanso othandiza pamafakitale ambiri.