Editing Constant-velocity joint (section)

{{short description|Mechanisms for smoothly transmitting rotation through a bend in a drive shaft}}
[[Image:Simple CV Joint animated.gif|thumb|280px|A Rzeppa-type CV joint]]

A '''constant-velocity joint''' (also called a '''CV joint''' and '''homokinetic joint''') is a mechanical [[coupling]] which allows the shafts to rotate freely (without an appreciable increase in [[friction]] or [[Backlash (engineering)|backlash]]) and compensates for the angle between the two shafts, within a certain range, to maintain the same velocity.

A common use of CV joints is in [[front-wheel drive]] vehicles, where they are used to transfer the engine's power to the wheels, even as the angle of the [[driveshaft]] varies due to the operation of the steering and [[Car suspension|suspension]].