Constant velocity universal joint

摘要

A constant velocity universal joint (10) comprises a plurality of trunnions (26a) formed to have a spherical configuration and expanding toward guide grooves (18a), cylindrical holders (32) for surrounding the trunnions (26a), to which roller members (24) displaceable along said guide grooves (18a) are externally fitted, and cutouts (34) formed on surfaces of the trunnions (26a).