Iqhaza le-crankshaft counterweight (eyaziwa nangokuthi i-counterweight) ukulinganisa amandla ajikelezayo amaphakathi kanye nomzuzu wawo, futhi ngezinye izikhathi amandla angenayo aphindaphindayo kanye nomzuzu wawo. Lapho lawa mandla kanye nezikhathi ngokwazo zilinganiselwe, isisindo sokulinganisa singasetshenziswa futhi ukunciphisa umthwalo ekuthwaleni okuyinhloko. Inombolo, ubukhulu kanye nokubekwa kwesisindo sebhalansi kufanele kubhekwe ngokwenani lamasilinda enjini, ukuhlelwa kwamasilinda kanye nokuma kwe-crankshaft. Isisindo sebhalansi sivamise ukuphonswa noma sihlanganiswe sibe yinye nge-crankshaft, futhi isisindo sebhalansi yenjini ye-diesel enamandla amakhulu sikhiqizwa ngokuhlukana ne-crankshaft bese sihlanganiswa ndawonye.