8+ What is a CV Joint? (Constant Velocity Joint)

what is a constant velocity joint

8+ What is a CV Joint? (Constant Velocity Joint)

A component in vehicle drivetrains, primarily front-wheel drive and all-wheel drive systems, allows a rotating shaft to transmit power through a variable angle, at a constant rotational speed, without a significant increase in friction or play. This mechanism is essential for transmitting engine power to the wheels smoothly, even when the suspension is articulating and the steering wheel is turned. A common example involves connecting a car’s transaxle to its driven wheels.

This type of joint is crucial for efficient power transfer, reducing vibration and noise, and enhancing vehicle handling and control. Its invention marked a significant improvement over earlier universal joints (U-joints), which exhibit speed fluctuations during operation at angles. The smooth power delivery achieved by this innovation contributes to a more comfortable and responsive driving experience.

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