| 摘要 |
A sealed rolling bearing which is high in resistance to muddy water and narrow in width. At each end of the outer race (1), a cylindrical portion (11a) provided at the outer peripheral portion of a sealing member (11) is press-fitted on the radially inner surface of the outer race (1). At each end of the inner race (3), a cylindrical portion (22) provided at the inner peripheral portion of a slinger (21) is press-fitted on the radially outer surface of the inner race (3). The sealing member (11) has at its inner peripheral portion a first radial lip (18) and a second radial lip (19) which are in elastic contact with a seal slide-contact surface (24) formed on the outer periphery of the cylindrical portion (22) of the slinger (21) to prevent entry of foreign matter such as muddy water into the bearing space (8). The slinger (21) has an annular portion (23) including an axially outwardly extending, outwardly bent portion (23c) provided at its outer peripheral portion. The outwardly bent portion (23c) has an outer periphery located inwardly of the outer end of the cylindrical portion (11a) of the sealing member (11). A small gap (g) is defined between the outwardly bent portion (23c) and the inner peripheral surface of the cylindrical portion (11a) as a labyrinth which prevents entry of foreign matter between the sealing member (11) and the slinger (21). |
