Cylindrical joint
From Infogalactic: the planetary knowledge core
A cylindrical joint is a two-degrees-of-freedom kinematic pair used in mechanisms.[1] Cylindrical joints provide single-axis sliding function as well as a single axis rotation, providing a way for two rigid bodies to translate and rotate freely. This can be pictured by an unsecured axle mounted on a chassis, as it may freely rotate and translate.[2]
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