Look up crankshaft in Wiktionary, the free dictionary.

A crankshaft is the part of an engine which translates reciprocating linear piston motion into rotation.

Crankshaft can also mean:

• Crankshaft (comic strip), a comic strip by Tom Batiuk
• Crankshaft (JavaScript), name for compilation technology in the V8 JavaScript engine by Google
• Douglas Murray (ice hockey), an ice hockey player nicknamed "Crankshaft"