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What are crankshafts?

Updated: 10/24/2022
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15y ago

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The crankshaft is the primary rotating shaft in an internal combustion engine. It converts the linear energy of the piston into rotational energy using cranks. Cranks are centers offset from the center of rotation that are pushed on as levers by the connecting rods. Connecting rods connect each crank to a piston. In an automotive application, the "front" end of the crankshft turns a pulley that powers various accessories, including the alternator, air-conditioning compressor, and Power Steering pump. The "rear" end of the crankshaft is attached to the transmission to power the drive wheels. "Front" and "rear" have become somewhat arbitrary designations since in most front wheel drive cars the engine is mounted transversely. i.e. the crankshaft centerline is parallel to the axles.

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Q: What are crankshafts?
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