crankpin
noun
crank·pin
ˈkraŋk-ˌpin 
plural crankpins
: the cylindrical piece that projects from the arm of a crank and to which a connecting rod is attached (as in a reciprocating engine) compare journal sense 3
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“Crankpin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/crankpin. Accessed 21 Dec. 2024.
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