Gulu la ndodo yolumikizira limapangidwa ndi thupi la ndodo, chivundikiro cha ndodo, cholumikizira ndodo ndi ndodo yolumikizira.

Mapeto awiri a ndodo yolumikizira, mapeto ang'onoang'ono pamapeto amodzi amagwiritsidwa ntchito kuyika pistoni kuti agwirizane ndi pisitoni; mapeto amodzi amalumikizidwa ndi ndodo yolumikizira magazini ya crankshaft yokhala ndi malekezero akulu. Chitsamba chamkuwa chimakanikizidwa kumapeto kwakung'ono kwa ndodo yolumikizira, yomwe imayikidwa pa piston. Pali kusiyana kwina kumbali ya mutu waung'ono kuti zisamangidwe pampando wa pin hole panthawi ya ntchito. Bowo lotolera mafuta limamatidwa pamwamba pa nsonga yaing'ono ya ndodo yolumikizira ndi chitsamba, ndikulumikizana ndi poyambira mafuta pakatikati pa chitsamba. Pamene injini ya dizilo ikugwira ntchito, mafuta ophwanyidwa amagwera mu dzenje kuti azipaka piston ndi chitsamba. Cholumikizira ndodo ndi bawuti yapadera yomwe imagwiritsidwa ntchito kulumikiza chivundikiro cha ndodo yolumikizira ndi ndodo yolumikizira kukhala imodzi. Cholumikizira ndodo chimayikidwa pampando waukulu wa dzenje la ndodo yolumikizira, ndipo imayikidwa pamodzi ndi magazini ya ndodo yolumikizira pa crankshaft. Ndi imodzi mwazofunikira kwambiri zofananira mawiri mu injini.

Chingwe cholumikizira ndodo chimayikidwa mu dzenje lalikulu lakumapeto kwa ndodo yolumikizira. Ndi chotengera chotsetsereka (chiwerengero chochepa kwambiri cha mayendedwe a injini ang'onoang'ono), wokhala ndi matailosi awiri ozungulira, omwe nthawi zambiri amatchedwa fani. Ma injini amakono ambiri amagwiritsa ntchito mipanda yopyapyala. Chitsamba chokhala ndi mipanda yopyapyala ndi wosanjikiza wa aloyi wochepetsa mikangano (0.3 ~ 0.8 mm) woponyedwa kumbuyo kwa chitsamba chachitsulo. Chingwe cholumikizira ndodo chimatha kuteteza dzenje lalikulu la ndodo yolumikizira ndi cholumikizira cholumikizira cha crankshaft, kotero kuti ndodo yolumikizira ndi crankshaft zitha kugwiritsidwa ntchito kwa nthawi yayitali.

Chingwe cholumikizira ndodo chiyenera kusinthidwa mu seti yathunthu, ndipo kukula kwake kuyenera kufanana ndi kukula kwa magazini yolumikizira ndodo. Chitsamba cholumikizira ndodo chikhoza kusinthidwa. Ndodo yolumikizira ndi chivundikiro cha ndodo imakonzedwa pawiri, ndipo m'malo mwake sikuloledwa. Posankha chitsamba chobereka, choyamba yang'anani kusinthasintha kwa matailosi. Pamene matayala akukanikizidwa mu chivundikiro cha tile, tile ndi chivundikiro cha tile chiyenera kukhala ndi zomangira zina. Ngati tile ikhoza kugwa momasuka kuchokera ku chivundikiro cha matayala, matayala sangathe kupitiriza Gwiritsani ntchito; tile ikanikizidwa mu chivundikiro cha matailosi, iyenera kukhala yokwera pang'ono kuposa ndege yophimba matayala, nthawi zambiri 0.05 ~ 0. 10 mm.

Chingwe cholumikizira ndodo ndi gawo lowopsa, ndipo kuchuluka kwake kumakhudzidwa makamaka ndi mtundu wamafuta opaka mafuta, chilolezo choyenerera komanso kuuma kwa magazini. Ubwino wamafuta ndi wosauka, pali zonyansa zambiri, ndipo kusiyana kwake kumakhala kochepa kwambiri, zomwe zimakhala zosavuta kuchititsa chitsamba chonyamula kukanda kapena kuwotcha. Ngati kusiyana kuli kwakukulu kwambiri, filimu ya mafuta siili yophweka kupanga, ndipo chigawo cha alloy chonyamula chimakonda ming'alu ya kutopa kapena kuphulika. Musanasankhe ndodo yolumikizira ndodo, kusiyana kwa mapeto a mapeto aakulu a ndodo yolumikizira kuyenera kufufuzidwa. Pali kusiyana kwina pakati pa mbali ya mapeto aakulu a ndodo yolumikizira ndi crankshaft crank. Injini yayikulu ndi 0.17 ~ 0.35 mm, injini ya dizilo ndi 0.20 ~ 0.50 mm, ngati ipitilira mtengo womwe watchulidwa, mbali yayikulu yolumikizira ndodo imatha kukonzedwa.

Mukayika chingwe cholumikizira ndodo, muyenera kuonetsetsa kuti chasinthidwa molingana ndi malo oyambira, ndipo sichiyenera kukhazikitsidwa molakwika. Mipando ya matailosi ndi matailosi iyenera kukhala yoyera komanso yokhazikika bwino, ndipo mtunda wokwanira pakati pa chonyamulira ndi magazini uyenera kutsimikiziridwa. Posonkhanitsa chitsamba chobala, chidwi chiyenera kuperekedwa kutalika kwa chitsamba chobala. Pamene kutalika kuli kwakukulu kwambiri, kumatha kusungidwa kapena kupukutidwa ndi sandpaper; ngati kutalika kuli kochepa kwambiri, tile iyenera kukonzedwanso kapena dzenje la mpando liyenera kukonzedwa. Zindikirani kuti ndizoletsedwa kuwonjezera mapepala kumbuyo kwa tile kuti awonjezere chitsamba chonyamula, kuti asakhudze kutentha kwa kutentha ndikupangitsa kuti chitsamba chikhale chomasuka komanso chiwonongeke. Chingwe cholumikizira ndodo chiyenera kusonkhanitsidwa molingana ndi nambala yofananira ndi nambala yotsatizana, ndipo mtedza ndi ma bolt ziyenera kulumikizidwa molingana ndi torque yomwe yatchulidwa. Mlomo woyimirira umapangidwa pa chitsamba cholumikizira ndodo. Pakuyika, milomo iwiri yoyimirira imayikidwa motsatana m'mizere yofananira kumapeto kwakukulu kwa ndodo yolumikizira ndi chivundikiro cha ndodo yolumikizira kuti chitsamba chisagwedezeke ndikusuntha mozungulira.