I-stroke yokusebenza yenjini kadizili iqedwa isilinda ngasinye ngokushintshana, ngakho amandla asebenza ku-crankshaft nawo aphakathi nendawo futhi awalingani. Ukuze udlulise la mandla ngokushelela, ukujikeleza kwe-crankshaft ngokwayo kufanele kuzinzile. Ukuze izinze, i-crankshaft kufanele ilinganise. I-crankshaft ihlobene nokuhlelwa kwenombolo yamasilinda.

Kuma-crankshaft ezinjini zikadizili ezinamasilinda amathathu, amane, amahlanu, namasilinda ayisikhombisa, kudingeka izisindo zebhalansi ukuze i-crankshaft ithole isisindo sebhalansi. Ubukhulu nokuma kwesisindo sebhalansi kubalwa ngesikhathi sokuklama. Iningi lezisindo zebhalansi zama-crankshafts zixhunywe ku-crankshaft lapho ifojwa noma isakazwa. Ngelinye. Nokho, isisindo sebhalansi yezinye izinjini zikadizili siboshelwa ku-crankshaft. Ngenxa yomthamo omkhulu walolu hlobo lwebhalansi yebhalansi, ukuqiniswa kwebhawudi kuvame ukusetshenziswa lapho isikhala sokufaka singanele.

Enjinini kadizili enamasilinda ayisithupha mpo ene-crank angle engu-120, umphumela webhalansi muhle uma kuqhathaniswa. Kubonakala sengathi asikho isidingo sokufaka isisindo sebhalansi. Kodwa-ke, le bhalansi iwumphumela we-inertia force ku-crankshaft noma i-cylinder block. Ngokuqondene nenjini ye-diesel, kusekhona amandla amaningi angenayo, ngezinye izikhathi abangela ukuthi i-bearing enkulu igcwale noma i-cylinder block idlidlize.

Ukuze ugweme ukwehluleka okunjalo, ingxenye ngayinye ye-crankshaft inamandla amakhulu angenayo, ngakho-ke kusekhona i-balance block. Ezisindweni zebhalansi eziboshelwe ngamabhawudi, lapho i-crankshaft idinga ukugaywa, izisindo zebhalansi kufanele zisuswe futhi zimakwe ukuze kuvinjelwe ukufakwa okungalungile ekuphuleni ibhalansi lapho kufakwa kabusha.