YOKE, MANUFACTURING METHOD OF YOKE AND CONNECTING STRUCTURE OF SHAFT AND YOKE

摘要

PROBLEM TO BE SOLVED: To provide a yoke which can improve connection rigidity with a shaft while securing durability, a manufacturing method of the yoke, and a connecting structure of the shaft and the yoke.SOLUTION: A yoke 20A includes a cylindrical part 30 in which a slit 33 is formed at one point on a circumference along an axial direction X, and a pair of fastening parts 35 which are arranged at the cylindrical part 30, and oppose each other with the slit 33 sandwiched therebetween. The cylindrical part 30 has an internal peripheral face 30A at which a female serration 34 engaged with a male serration 22 of an external peripheral face 15A of an inner ring 15 is formed. A pair of the fastening parts 35 fastens the internal peripheral face 30A to the inner ring 15 while approximating each other by being assembled with a bolt 55 which traverses the slit 33. A curvature radius center P of the internal peripheral face 30A of the cylindrical part 30 is deviated from a curvature radius center Q of an external peripheral face 30C of the cylindrical part 30 toward a side separating from the slit 33.SELECTED DRAWING: Figure 9