universal joint(redirected from U joint)
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A joint or coupling that allows parts of a machine not in line with each other limited freedom of movement in any direction while transmitting rotary motion. Also called universal coupling.
(Mechanical Engineering) a form of coupling between two rotating shafts allowing freedom of angular movement in all directions
Mach. a coupling between rotating shafts set at an angle to one another, allowing for rotation in three planes.
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|Noun||1.||universal joint - coupling that connects two rotating shafts allowing freedom of movement in all directions; "in motor vehicles a universal joint allows the driveshaft to move up and down as the vehicle passes over bumps"|