| 摘要 |
PROBLEM TO BE SOLVED: To facilitate round hole forming work by forming concentric round holes of the forward end parts of a pair of arm parts extended from the diametral opposite side position at one end edge in the axial direction of the base, and forming the opposite surfaces as cylindrical recessed surfaces only by press working. SOLUTION: A yoke for a universal coupling comprises a base 2 and a pair of arm parts 3, 3. The respective arm parts 3, 3 are extended from the diametral opposite side position at one end edge of the base 2 in the axial direction of the base 2, and the opposite surfaces are cylindrical recessed surface. Concentric round holes 4, 4 are formed at the forward end parts of the arm parts 3, 3, only by press working. |
