Comments by "John Cunningham" (@johncunningham4820) on "EVERYTHING about the CRANKSHAFT - Function | Manufacturing | Different types | Forged | Billet" video.

  1. There IS one more type of Crankshaft . Built-Up . Very Expensive Manufacture but can be Strongest of all . Multiple precision parts pressed together . Parts can be machined for Optimum Material Strength and Hardness , and can even be Taper Splined . 1000 tonne pressing with slight interference fit . Crank-Webs heated and Crankpins chilled for Pressing process . Roller Bearings can be used if desired , fitted to Crankpins at Assembly stage . Crank-webs are often Full Circe design , weight relieved for counterweighting on the both side-faces . In fact Conrods CAN be fitted during Assembly . The least windage therefore . Only a light Flywheel needed as well . There is also the possibility to through-Rivet the Journals if thought necessary .
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