Mu bijyanye no gukora imashini yubwubatsi, gusobanukirwa ibice bikomeza ibikoresho biremereye bikora ni ngombwa. Kimwe muri ibyo bice ni PC1250-7 21N-27-31191 sprocket. Iyi sprocket nigice cyingenzi cyinteko yo munsi yimodoka, bigira uruhare runini mubikorwa rusange byubucukuzi nizindi mashini ziremereye. PC1250-7 sprocket yagenewe kubwa