crank·​shaft | \ ˈkraŋk-ˌshaft How to pronounce crankshaft (audio) \

Definition of crankshaft

1 : a shaft driven by or driving a crank
2 : a shaft consisting of a series of cranks and crankpins to which the connecting rods of an engine are attached

Examples of crankshaft in a Sentence

Recent Examples on the Web

The other main advantage King claims is that the Szorenyi's rev limit isn't constrained by the crankshaft bending that results from the Wankel's eccentric rotors. Matthew Jancer, Popular Mechanics, "The Rhombus Rotary Engine: Can a Quirky New Design Top the Famous Wankel?," 18 Jan. 2019 Infiniti's solution involves replacing the usual connecting rod between the piston head and crankshaft with a multilink arrangement. Eric Bangeman, Ars Technica, "Variable-compression engine meets crossover: Infiniti QX50 review," 8 Nov. 2018 Tuneups are kind of outdated these days because this computer system self-corrects the fuel mixture and ignition at every crankshaft revolution. Michael Austin, Popular Mechanics, "What Your Check Engine Light Means and What To Do About It," 31 July 2018 For every 90 degrees that the crankshaft turns on a V8 or every 180 degrees on an I4, DSF is making a decision. Matthew Jancer, Popular Mechanics, "How Smarter Cylinder-Skipping Will Make Gas Engines Better," 7 Aug. 2018 But the shortest route is to minimize the duration of the start/stop event itself, so that the engine fires within the first rotation of the engine crankshaft. Dan Neil, WSJ, "2019 Mercedes-Benz CLS: A Move Toward Electrification," 3 Aug. 2018 The new-for-2018 GT3’s engine features wider crankshaft bearings to beef up the bottom end and new heads with roller finger followers for a lighter and zingier valvetrain. James Lipman, Car and Driver, "2018 Porsche 911 GT3 PDK Automatic," 23 Mar. 2018 Those crankshafts and cylinder blocks won’t qualify as local content for the EU—unless the U.K. can agree on new cumulation agreements with the EU and South Africa. Jason Douglas, WSJ, "‘Rules of Origin’ Risk Tripping Up Trade Post-Brexit," 16 May 2018 In 2001, the IRL tried to improve the sound with tweaks, including a new crankshaft. Dakota Crawford, Indianapolis Star, "What a blind man gets from the Indy 500: 'That gasoline thunder'," 24 May 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'crankshaft.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of crankshaft

1854, in the meaning defined at sense 1

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Last Updated

12 Jun 2019

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Time Traveler for crankshaft

The first known use of crankshaft was in 1854

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English Language Learners Definition of crankshaft

technical : a long metal piece that connects a vehicle's engine to the wheels and helps turn them

More from Merriam-Webster on crankshaft

Rhyming Dictionary: Words that rhyme with crankshaft Encyclopedia article about crankshaft

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