Crankshaft ndi imodzi mwamagawo ofunikira mu injini yoyaka mkati, ndi msana wa injini, ndiye gawo lofunikira kuti lithe kunyamula mphamvu ndikutumiza mphamvu.

The crankshaft makamaka amapangidwa ndi kutsogolo kutsogolo kwa crankshaft, khosi lalikulu la shaft, magazini yolumikizira ndodo, crank, chipika chotchinga, kumbuyo kumbuyo kwa crankshaft, ndi zina zambiri. gulu la pisitoni yolumikizira ndodo mu torque yakunja, ndipo imatha kuyendetsa makina a valve ya injini yoyatsira mkati ndi zida zina zosiyanasiyana. Malo ogwirira ntchito komanso kupsinjika kwa crankshaft ndizovuta kwambiri, ndipo zimakhudzidwa ndi kusintha kwanthawi ndi nthawi kwa kupanikizika kwa gasi, mphamvu yapakati komanso mphamvu yogwira ntchito. Chifukwa chake, pakukonza ndi kupanga, kulondola kwazithunzi, kulondola kwamalo ndi kuuma kwapang'onopang'ono kwa gawo lililonse la crankshaft kumakhala ndi zofunika kwambiri.

Crankshaft nthawi zambiri imapangidwa kuchokera ku chitsulo chapakati cha kaboni, chitsulo chapakatikati cha carbon alloy kapena chitsulo cha ductile