Kugwira ntchito kwa injini ya dizilo kumatsirizidwa ndi silinda iliyonse motsatana, kotero mphamvu yomwe imagwira pa crankshaft imakhalanso yapakatikati komanso yosakwanira. Kuti apereke mphamvu izi bwino, kuzungulira kwa crankshaft komweko kuyenera kukhala kokhazikika. Kuti ikhale yokhazikika, crankshaft iyenera kukhala yokhazikika. Crankshaft imagwirizana ndi kuchuluka kwa masilindala.

Pa ma crankshafts a injini za dizilo zitatu, zinayi, zisanu, ndi zisanu ndi ziwiri, zolemera zimafunikira kuti crankshaft ipeze kulemera kwake. Kukula ndi mawonekedwe a kulemera kwake kumawerengedwa panthawi ya mapangidwe. Zolemera zambiri za crankshaft zimalumikizidwa ndi crankshaft popanga kapena kuponyera. Kumodzi. Komabe, kulemera kwa injini zina za dizilo kumalumikizidwa ku crankshaft. Chifukwa cha kuchuluka kwamtundu woterewu, kumangirira bawuti kumagwiritsidwa ntchito nthawi zambiri ngati malo oyikawo sakukwanira.

Kwa injini ya dizilo ya silinda yoyima ya silinda yokhala ndi ngodya ya 120, mphamvu yake ndi yabwino. Zikuwoneka kuti palibe chifukwa choyikira kulemera kwake. Komabe, izi ndi zotsatira za mphamvu ya inertia pa crankshaft kapena cylinder block. Ponena za injini ya dizilo, pali mphamvu zambiri zopanda mphamvu, zomwe nthawi zina zimapangitsa kuti chigawo chachikulu chilemeredwe kapena kuti silinda yozungulira igwedezeke.

Pofuna kupewa zolephera zotere, gawo lililonse la crankshaft limakhala ndi mphamvu yayikulu, kotero pamakhalabe chotchinga. Pazolemera zomangirira ndi mabawuti, pomwe crankshaft ikufunika kuphwanyidwa, masikelo akuyenera kuchotsedwa ndikuyikidwa chizindikiro kuti aletse kuyika kolakwika kuti zisasweke poikanso.