| 摘要 |
The positioning of a cover (24) with respect to a housing (20) is performed at two places, namely the place where "a first intermediate shaft (31) and a first recess (61) fit together" and the place where "a second intermediate shaft (32) and a second recess (62) fit together." As a result, the load of the cover (24) is not conveyed to an output shaft (23) via a cover-side bearing (34). Accordingly, when the cover (24) is in a state of being fixed to the housing (20), an excessive load is not generated between the cover-side bearing (34) and the output shaft (23), and between a housing-side bearing (33) and the output shaft (23). |
