| 摘要 |
<p>In a universal joint wherein a pair of yokes of the joint are connected by a trunnion cross having journals which extend into bores of the respective yokes, and wherein a bearing bush and needle bearings are provided between the cross journal and the inner surface of the yoke bore, grooves which extend, relative to the joint center, from a point radially inwardly thereof to a point radially outwardly thereof are formed on at least a part of at least one of the inner surface of the yoke bore and the outer surface of the bearing bush.</p> |
