Gulu la zida zamagudumu a nyongolotsi zomwe zidagwiritsidwa ntchito m'boti. Zinthu 34CrNiMo6 za shaft nyongolotsi, chithandizo cha kutentha: carburization 58-62HRC. Zida za nyongolotsi CuSn12Pb1 Tin Bronze . Gulu la gudumu la nyongolotsi, lomwe limadziwikanso kuti giya la nyongolotsi, ndi mtundu wa zida zomwe zimagwiritsidwa ntchito m'mabwato. Zimapangidwa ndi nyongolotsi ya cylindrical (yomwe imadziwikanso kuti screw) ndi gudumu la nyongolotsi, yomwe ndi giya ya cylindrical yokhala ndi mano odulidwa mu helical pattern. Ma meshes a nyongolotsi ndi nyongolotsi, ndikupanga kutulutsa kosalala komanso kwabata kwamphamvu kuchokera ku shaft yolowera kupita ku shaft yotulutsa.

M'mabwato, magiya a mphutsi amagwiritsidwa ntchito kuchepetsa kuthamanga kwa shaft ya propeller. Zida za nyongolotsi zimachepetsa kuthamanga kwa shaft yolowera, yomwe nthawi zambiri imalumikizidwa ndi injini, ndikusamutsa mphamvuyo