SLIDING TRIPOD CONSTANT VELOCITY JOINT

摘要

Provided is a sliding tripod constant velocity joint wherein the durability of a roller and a tripod shaft portion can be improved even if the outer ring is deformed by the transmission of power. The trajectory groove of the outer ring is in angular contact with the roller. The sectional shape of the trajectory groove of the outer ring in the radial direction has an arc having a first position as a center and having a first radius of curvature. The longitudinal sectional shape of a first contact portion of the roller has a projected curved line having as a center a second position different from the first position and having a second radius of curvature smaller than the first radius of curvature. The longitudinal sectional shape of a second contact portion of the roller has a projected curved line having as a center a third position different from the first position and the second position and having a third radius of curvature smaller than the first radius of curvature. The longitudinal sectional shape of a portion between the first contact portion and the second contact portion of the roller is formed so that a clearance is formed between the roller and the trajectory groove.