| 摘要 |
PROBLEM TO BE SOLVED: To provide a manufacturing method for a transmission gear capable of attaining the life extension of a die, parts sharing, and manufacturing at low cost. SOLUTION: An external member 2 of which the outer periphery has a gear portion 2a on it and of which the inner periphery has an engaging hole in it, an internal member 3 with a dog portion having a dog gear 3a, and an internal member 4 without a dog portion having no dog gear on it, are processed separately. Either of the two types of internal members is built in the engaging hole 2b of the external member 2, which are integrated by welding. COPYRIGHT: (C)2004,JPO
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