| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a sliding-type constant-velocity universal joint which is excellent in productivity, and whose cost with regard to a device for forming can be reduced. <P>SOLUTION: This is a constant-velocity universal joint including an outer joint member 11 which is formed with track grooves 16 on the inner diameter surface 15, an inner joint member 12 which is formed with track grooves 18 on the outer diameter surface 17, torque transmission balls 13 which are disposed on a torque transmission ball track formed by means of track grooves 16 of the outer joint member 11 and track grooves 18 of the inner joint member 12 corresponding to track grooves 16, and a cage 14 for holding the torque transmission balls 13. The inner diameter of a cage holding section 22 of the outer joint member 11 is set to be larger than the diameter of a circle which inscribed to a tangent line connecting the adjacent balls 13 on the side of the outer diameter of the joint along the circumferential direction. The shape of the inner diameter of the outer joint member 11 is configured by means of the arcs of the track grooves of the outer joint member 11 and the cage holding section 22 and of a tangent line connecting the arcs and cage holding section 22. <P>COPYRIGHT: (C)2012,JPO&INPIT |
