Zida zowongoka zomwe zimagwiritsidwa ntchito pamagiya osiyanitsa a thirakitala, Makina akumbuyo a bevel gear transmission a giya ya thirakitala, makinawo amaphatikiza kumbuyo koyendetsa bevel gear shaft ndi shaft yakumbuyo yotulutsa giya yokonzedwa motsatana ndi kumbuyo kwa bevel gear shaft. Zida za bevel, giya yakumbuyo yotulutsa giya imaperekedwa ndi giya yoyendetsedwa ndi bevel yomwe imalumikizana ndi giya yoyendetsa, ndipo giya yosuntha imayikidwa kumbuyo kwa galimoto yoyendetsa bevel gear shaft kudzera pa spline, yomwe imadziwika kuti giya yoyendetsa bevel ndi drive yakumbuyo yoyendetsa. Iwo sangakhoze kokha kukwaniritsa zolimba zofunika kufala mphamvu, komanso kukhala ndi deceleration ntchito, kuti gearbox yaing'ono anapereka pa msonkhano kumbuyo linanena bungwe kufala thirakitala chikhalidwe akhoza anasiya, ndi mtengo kupanga akhoza kuchepetsedwa.