I-crankshaft yinxalenye ebalulekileyo ye-injini. Izinto zayo zenziwe ngentsimbi ye-carbon structural okanye i-nodular cast iron. Inamacandelo amabini abalulekileyo: ijenali ephambili, ijenali yentonga yokudibanisa (kunye nabanye). Ijenali ephambili ifakwe kwibhloko yesilinda, intamo yentonga yokudibanisa idityaniswe nomngxuma omkhulu wentloko yentonga yokudibanisa, kwaye umngxuma omncinci wokudibanisa udityaniswe nepiston yesilinda, eyona ndlela iqhelekileyo ye-crank slider mechanism.

Eyona nto iphambili ye-crankshaft ibizwa ngokuba yi-bearing enkulu. Njengokuthwala intonga yokudibanisa, ikwayi-sliding bear eyahlulwe ibe ngamacandelo amabini, angawona aphambili (iibheringi eziphezulu nezisezantsi). I-bush yokuthwala ephezulu ifakwe kwisigxina esiphezulu somngxuma wesihlalo somzimba; ukuthwala okusezantsi kufakwe kwisigqubuthelo esiphambili. Ibhloko ephambili yokuthwala kunye nesimboli esiphambili somzimba sidibaniswe kunye neebholiti eziphambili. Izinto eziphathekayo, ukwakhiwa, ukufakwa kunye nokubeka indawo yokuthwala eyona nto ifana neyokuxhamla intonga. Ukuze udlulise ioli kwintonga yokudibanisa intloko enkulu, imingxuma yeoli kunye neegrooves zeoyile zihlala zivulwa kwindawo ephambili yokuthwala, kwaye ukuthwala okusezantsi komgangatho oyintloko awuvulwanga ngemingxuma yeoli kunye neegrooves ngenxa yomthwalo ophezulu. . Xa ufaka i-bearing ephambili ye-crankshaft, nikela ingqalelo kwindawo kunye nesikhokelo sokuthwala.