Stationary constant velocity universal joint

A fixed type constant velocity universal joint, comprising:

• an outer joint member having a plurality of track grooves formed in a radially inner surface of the outer joint member so as to extend in an axial direction of the outer joint member;
• an inner joint member having a plurality of track grooves formed in a radially outer surface of the inner joint member so as to extend in an axial direction of the inner joint member;
• a plurality of balls interposed between the track grooves of the outer joint member and the track grooves of the inner joint member and configured to transmit torque;
• a cage interposed between the radially inner surface of the outer joint member and the radially outer surface of the inner joint member and configured to retain the plurality of balls;
• and
• a shaft fitted into a shaft hole of the inner joint member,
• wherein the outer joint member has a mouth section configured to receive an internal component which is constructed by assembling the plurality of balls and the cage to the inner joint member,
• wherein a protrusion shaft portion is provided on an end surface of the shaft on a joint fitting side, and a recess into which the protrusion shaft portion is fitted is formed in an inner surface of a bottom wall of the mouth section of the outer joint member,
• wherein the recess allows angular displacement of the shaft to a predetermined operating angle, and the protrusion shaft portion is brought into contact with a wall surface of the recess at the predetermined operating angle so that angular displacement exceeding the predetermined operating angle is regulated, and
• wherein allowable angular displacement in the recess is within a range of preventing the shaft from being brought into contact with an opening portion of the mouth section.