| 摘要 |
PROBLEM TO BE SOLVED: To provide a sealed roll neck bearing high in mounting stiffness, excellent in assembly property with respect to a roll neck part, and high in sealing performance. SOLUTION: The sealed roll neck bearing 40 has a sealing device 51 installed to outer peripheral faces 43d, 44d of abutment parts of a pair of inner rings 43, 44. The sealing device 51 has an elastic seal member 53 having a fitting part 54 and a radial lip part 55, and a core metal 52 disposed to cover at least the radially outside of the fitting part 54. The fitting part 54 is fitted to an outer peripheral face 43d of one inner ring to give the high mounting stiffness the sealing device 51, and the radial lip part 55 is brought into slide-contact with an outer peripheral face of the other inner ring to follow eccentricity of inner rings 43, 44 and secure high sealing performance. COPYRIGHT: (C)2009,JPO&INPIT |
