Shaft iyi ya spur gear yomwe imagwiritsidwa ntchito pamakina omanga.Miyendo yamagetsi mu makina otumizira nthawi zambiri amapangidwa ndi zitsulo 45 muzitsulo zapamwamba za carbon, 40Cr, 20CrMnTi muzitsulo zazitsulo, ndi zina zotero.Shaft iyi ya spur gear idapangidwa ndi 20MnCr5 low carbon alloy steel, carburizing mu 58-62HRC.