US Patent 7316620 Constant velocity universal joint
Patent 7316620 was granted and assigned to NTN Corporation on January, 2008 by the United States Patent and Trademark Office.
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The tripod member has three trunnions which are projected radially. Each of the trunnions carries a roller, and this roller is accommodated in one of the track grooves in the outer joint member. The outer peripheries of the rollers and the roller guideways make angular contact with each other. Support rings are fitted onto the outer peripheries of the trunnions. These support rings and the rollers are assembled (unitized) via a plurality of needle rollers to constitute roller assemblies capable of relative rotations. In longitudinal sections, the outer peripheries of the trunnions have straight shapes parallel to the axes of the trunnions. In cross sections, the outer peripheries are elliptic in shape, with their respective major axes perpendicular to the axis of the joint. The inner peripheries of the support rings have arcuate convex sections.
US Patent 07316620 Constant velocity universal joint US Patent 7316620 Constant velocity universal joint
US Patent 07316620 Constant velocity universal joint
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