| 摘要 |
<P>PROBLEM TO BE SOLVED: To improve water-proofing properties of a bearing, and to prevent a rise of internal pressure. <P>SOLUTION: This seal device 20 is composed of an oil seal 24, and labyrinth seals 26, 28, water repellent finishing is performed on components 16, 17, 22 constituting the labyrinths 26, 28, and a water-repellent resin coating 30 having moisture permeability of 10 g/m<SP>2</SP>24h or more, is formed. <P>COPYRIGHT: (C)2007,JPO&INPIT |
