| 摘要 |
PROBLEM TO BE SOLVED: To reduce a cost of a structure to prevent turn-over of an inner seal lip, be low in torque and excellent in durability and sealing ability. SOLUTION: In a sealing device for a rolling bearing, a slinger 6 is securely fitted externally of the end part of an inner ring and a core 5a is securely fitted internally of the end part of an outer ring. Outer, intermediate, and inner seal lips 14a, 15a, and 16b having respective base end parts coupled to the core 5a are inclined such that further inclination in the direction of the external space of the rolling bearing is effected toward the respective tip edge. Interference fit between the tip edge of the inner seal lip 16b and the outer peripheral surface of a cylinder part 12 on the inside diameter side of which the slinger 6 consists is reduced to approximate zero. Thus, even when from a state that the tip edge of the inner seal lip 16b is come off from the outer peripheral surface of a cylinder part 12 on the inside diameter side, the inner seal lip 16b is fitted externally of the cylinder part 12 on the inside diameter side, the inner seal lip 16b is prevented from turning over. |
