PROBLEM TO BE SOLVED: To provide a spinning reel for fishing, which can be sufficiently used in an adverse environment by enabling reliable prevention of infiltration of sea water, foreign matter and the like into a bearing, and which makes rotation performance, handleability and maintainability proper.SOLUTION: In a spinning reel for fishing, a line roller 23 is rotatably supported by a spindle 17 via a bearing 25 with a magnetic fluid seal, which is configured by having the magnetic fluid seal integrally provided on the bearing. The magnetic fluid seals 40 of the bearing 25 are provided on both the sides of a bearing body 30, respectively. Additionally, a magnetic fluid 45 of the magnetic fluid seal 40 has an outer ring-side magnetic fluid 45b that is held between an outer ring 30b and a magnet 42, and an inner ring-side magnetic fluid 45a that is held between an inner ring 30a and a holding plate 44.COPYRIGHT: (C)2015,JPO&INPIT【課題】軸受内への海水、異物等の浸入を確実に防止でき、悪環境下での使用に十分耐え得るとともに、回転性能、取り扱い性、および、メンテナンス性が良好な魚釣用スピニングリールを提供する。【解決手段】本発明の魚釣用スピニングリールでは、軸受に磁性流体シールが一体に設けられて成る磁性流体シール付き軸受25を介してラインローラ23が支軸17に回転可能に支持される。軸受25の磁性流体シール40は軸受本体30の両側に設けられる。また、磁性流体シール40磁性流体45は、外輪30bと磁石42との間に保持される外輪側磁性流体45bと、内輪30aと保持板44との間に保持される内輪側磁性流体45aとを有する。【選択図】 図3
