universal joint

mechanics

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Last updated

July 14, 2026

Quick Summary

A universal joint, also known as a universal coupling, is a mechanical component that connects two shafts that are not in line with each other. It allows for the transmission of rotational motion between these shafts, even when they are at an angle. This is particularly useful in applications like the drivetrain of rear-wheel-drive vehicles, where the drive shaft connects the transmission to the rear axle, which moves with the suspension. Universal joints enable the axle shafts to adjust to the movements of the suspension while still receiving power from the transmission.12

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automobile
Axles
Universal joints within the spherical elements permit the axle shafts to move with the actions of the suspension springs. The gear housing is supported by a rear cross member of the chassis and moves with the sprung portion of the vehicle, as does the drive…
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Universal joints within the spherical elements permit the axle shafts to move with the actions of the suspension springs. The gear housing is supported by a rear cross member of the chassis and moves with the sprung portion of the vehicle, as does the drive…
Read More