Cylindrical gears o vaega taua ia i masini eletise eletise, lauiloa mo lo latou lelei, faigofie, ma le agavaʻa. O mea fa'aoga nei e iai nifo fa'aa'oa'o fa'aa'oa'o e fefiloi fa'atasi e fa'afeso'ota'i ai le gaio ma le malosi i le va o 'au e tutusa pe felavasa'i.
O se tasi o mea taua o le cylindrical gears o lo latou gafatia e faʻafeiloaʻi le mana sologa lelei ma le leoa, ma faʻaogaina lelei mo le tele o faʻaoga, mai le faʻaogaina o taavale i masini faʻapisinisi. O loʻo maua i latou i faʻasalalauga eseese, e aofia ai faʻamalosi faʻamalosi, mea faʻapipiʻi, ma faʻailoga faʻalua faʻalua, e ofoina atu e taʻitasi tulaga faʻapitoa e faʻatatau i manaʻoga talosaga.