Umuyoboro w'icyuma ni ubwoko bw'icyuma kirekire kizengurutse, gikoreshwa cyane cyane mu miyoboro itwara inganda n'ibikoresho byubatswe nka peteroli, inganda z’imiti, ubuvuzi, ibiryo, inganda zoroheje, ibikoresho bya mashini n'ibindi.Mubyongeyeho, iyo imbaraga zunamye hamwe na torsional zingana, uburemere buba bworoshye, kuburyo bukoreshwa cyane mugukora ibice byubukanishi nubwubatsi.