| 摘要 |
<p>PROBLEM TO BE SOLVED: To prevent any foreign matter from intruding into a reduction gear case and improve reliability and durability by providing a seal device on the opening side of the reduction gear case. SOLUTION: A reduction gear 14 is adhered into a reduction gear case 3 of a housing 1 and an electric motor 13 is mounted on the opening 3C side. A unit case 25 of the reduction gear 14 is constituted with a guide ring 16 of a reduction mechanism 15, a holder 26 on the input side, and a holder 28 on the output side. In the reduction gear case 3, a seal device 34 is positioned on the opening 3C side than the reduction gear 14, and this seal device 34 is constituted with a seal plate 35, and O-rings 37, 38.</p> |
