| 摘要 |
A reduction gear device is used for a coaxial type starter and is disposed between a rotary shaft of a motor and a rotary shaft of a starter pinion, both shafts being arranged in the same axial line. In the reduction gear, a through hole is formed in a machine frame for a reduction gear to cause air flow and a labyrinth-sealing structure for prevention of dust is formed near the through hole. |
