To provide an inexpensive sealing device of a bearing which generates low heat even if a peripheral speed of shaft diameter of a seal lip part is large and has an assured water-proof effect.
In this bearing 1 in which a plurality of tapered rollers 4 are rotatably arranged between a raceway face of an inner ring 2 and a raceway face of an outer ring 3 with a predetermined circumferencial interval supported by a holder 5, a seal lip part 7 to be attached either of an outer peripheral face of a shaft end of the inner ring 2 or the inner peripheral face of a shaft end of the outer ring 3 for sealing a space inside the bearing between the inner ring 2 and the outer ring 3 by blocking openings at the both ends in the axial direction of the bearing 1, and a sealing member 10 constituted by a contact face 8 in sliding contact with the seal lip part 7 and made of a tetrafluoroethylene resin at a contact portion of the seal lip part 7 are provided.
YAGI TAKASHI
ISHII TAKUYA
ISHIDA AKIHIRO
KEEPER KK