| 摘要 |
PROBLEM TO BE SOLVED: To improve fastening strength of a shaft coupling and reduce wear and metal fatigue by deforming a boss part effectively and uniformly to clamp- fix shafts. SOLUTION: In this fastening structure, a boss part 10 of a hub 1 is provided with a slot 13a radially cut in the axial direction from an end part toward a yoke 11, slightly leaving a part to the yoke 11, and a radial slot 13b cut in the axial direction from the yoke toward the end part on the opposite side with respect to a shaft, slightly leaving a part near the end part. A pair of check bolts 14a, 14b right-angled to the slots 13a, 13b, for clamping the slots 13a, 13b to fasten the boss part 10 to shafts are arranged at the slots 13a, 13b parts. |
