The Composite Universal Joint 690256

This paper outlines six problems encountered in the design of universal joints for automotive drive lines and explains how each problem was solved. Solutions included: elimination of undercuts from operating area of journal surface, control of uniformity of loading on ground and thrust surfaces touched by the needles, use o f dual-system precision seals, use of plastic retaining rings to freeze the joint on center, and removal of impediments to the process of precession.


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