Crankshaft: Description and Operation

Crankshaft Assembly






The crankshaft is a forging and has ground journals, which are surface-treated by induction hardening. This produces a hard surface finish which is highly resistant to wear. There are five main bearings, with the middle one also serving to locate the crankshaft axially. Oilways are drilled in the crankshaft for lubrication. All main bearing shells are replaceable.