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November 6, 2019

Note that the result rotational velocity can vary from the input due to compliance in the joints. Stiffer compliance can result in more exact tracking, but higher interior torques and vibrations.
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In the second technique, the axes of the input and output shafts are offset by a specified angle. The angle of each universal joint is usually half of the angular offset of the suggestions and output axes.

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This example shows two solutions to create a constant rotational velocity output using universal joints. In the first method, the position of the universal joints is exactly opposite. The end result shaft axis is certainly parallel to the input shaft axis, but offset by some distance.

Multiple joints can be utilized to create a multi-articulated system.