Prismatic joint

<p>A prismatic joint is a one-<a href="/facts/Degrees_of_freedom_(mechanics)/2BqcdnLA">degree-of-freedom</a> <a href="/facts/Kinematic_pair/9ctT76sU">kinematic pair</a> which <a href="/facts/Constraint_(classical_mechanics)/yQsHLS4b">constrains</a> the motion of two bodies to <a href="/facts/Sliding_(motion)/fX75yqy7">sliding</a> along a common axis, without <a href="/facts/Rotation/yChkz49x">rotation</a>; for this reason it is often called a slider (as in the <a href="/facts/Slider-crank_linkage/unKCoWTr">slider-crank linkage</a>) or a sliding pair. They are often utilized in <a href="/facts/Hydraulic_cylinder/IxeMnFCy">hydraulic</a> and <a href="/facts/Pneumatic_cylinder/hexATR6N">pneumatic cylinders</a>. 
</p><p>A prismatic joint can be formed with a <a href="/facts/Polygonal/yAq7RjPz">polygonal</a> cross-section to resist rotation. Examples of this include the <a href="/facts/Dovetail_joint/z1sw37hc">dovetail joint</a> and <a href="/facts/Linear_bearing/mhfUk26H">linear bearings</a>.
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Prismatic joint open-in-new

Prismatic joint