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balance shaft

American  

noun

  1. a special shaft with eccentrically mounted weights used in an internal-combustion engine to reduce vibrations.


Example Sentences

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For your mechanic’s future reference, the fuel pump is now inside the crankcase, being driven by the engine balance shaft.

From The Wall Street Journal Feb. 12, 2026

The new motor features a balance shaft so effective that engineers admitted to putting a little vibration back in so it would feel “like a Harley.”

From New York Times May 31, 2021

They added a balance shaft and widened the crankcase to stiffen the engine’s structure, for example.

From Forbes Dec. 30, 2014

Metaldyne makes metal-formed components and assemblies for powertrain applications, including engine connecting rods, transmission valve bodies and balance shaft modules.

From Reuters Dec. 19, 2012

He reached the balance shaft without having seen a man, and climbed swiftly to the upper level.

From The Gold-Stealers A Story of Waddy by Dyson, Edward

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