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universal joint
Sign in to saveAlso known as universal coupling, U-joint, Hooke's joint, Hardy-Spicer joint, Cardan joint
mechanism with bendable rotation axis
~15 min read
Encyclopedic overview
A universal joint
A universal joint (also called a universal coupling or U-joint) is a joint or coupling connecting rigid shafts whose axes are inclined to each other. It is commonly used in shafts that transmit rotary motion. It consists of a pair of hinges located close together, oriented at 90° to each other, connected by a cross shaft. The universal joint is not a constant-velocity joint.
Excerpted from Wikipedia’s “universal joint” article, available under the CC BY-SA 4.0 licence.