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- Dictionaryuniversal joint
noun
- 1. a coupling or joint which can transmit rotary power by a shaft at any selected angle.
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noun
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A universal 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. Wikipedia