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ring gear
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ring gear

mechanics
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Quick Summary

A ring gear is a gear with teeth cut on the rim of a ring. In automobiles, it's a crucial component of the differential. The differential's purpose is to allow the driving wheels to rotate at different speeds, which is essential when a vehicle turns a corner. The engine's power is transmitted through the drive shaft to a pinion gear, which then drives the ring gear. This ring gear is attached to a case containing smaller gears (differential pinions) that mesh with side gears connected to each wheel's axle. This arrangement ensures that power is delivered to both wheels, but allows them to spin at different rates as needed.12

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