crankpins
/ˈkræŋkˌpɪnz/
noun
- The pins or bolts that connect a connecting rod to a crankshaft in an engine.
- The mechanic replaced the worn crankpins to fix the engine noise.
- He carefully measured the crankpins to ensure they were within tolerance.
- Crankpins must be properly lubricated to prevent overheating.