Crankpin

  Crankpins highlighted in blue

A crankpin or crank pin, also known as a rod bearing journal,[1] is a mechanical device in an engine which connects the crankshaft to the connecting rod for each cylinder. It has a cylindrical surface, to allow the crankpin to rotate relative to the "big end" of the connecting rod.[2][3][4]

The most common configuration is for a crankpin to serve one cylinder. However, many V engines have each crankpin shared by each pair of cylinders.

  1. ^ "How the crankshaft works - All the details". How a Car Works. Retrieved 22 August 2022.
  2. ^ "The definition of crankpin". www.dictionary.com. Retrieved 2018-02-05.
  3. ^ "Crankpin". www.wartsila.com. Retrieved 2018-02-05.
  4. ^ "Crankpin definition and meaning". www.collinsdictionary.com. Retrieved 2018-02-05.

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