| 摘要 |
PROBLEM TO BE SOLVED: To provide a differential gear based on the differential gear in the patent publication of HO8-170705 increasing transfer torque even when there is a dimensional limitation such as a differential gear case on a rotary body on the input side, and being manufactured at low cost. SOLUTION: The outer side of a slot 4c of a ball holder 4 is designated as a large diameter part 4d, and at least a part between the individual slots 4c is designated as a small diameter part 4f and is formed integrally. A combined rotation of input side rotary bodies 1, 2 and the ball holder 4 are realized by engaging the large diameter parts 4d and the small diameter parts 4f of the ball holder 4 with the input side rotary bodies 1, 2. The large diameter parts 4d of the boll holder 4 and the input side rotary bodies 1, 2 are engaged loosely.
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