| 摘要 |
PROBLEM TO BE SOLVED: To provide a divided rolling bearing device which is long in life and can prevent the deformation of a roll external periphery, and a roll assembly.SOLUTION: A divided rolling bearing device 1 comprises: an outer ring member 2 which is divided in two pieces along the axial line; an inner ring 3 which has an external peripheral part, an inner ring raceway at the center, and an inner ring shoulder between the inner ring raceway and ends in both axial directions, and is divided into two pieces along the axial direction; and a plurality of rolling bodies 4 which are arranged so as to roll between the internal periphery of the outer ring member and the inner ring raceway. The rolling bearing device also has an annular labyrinth protrusion 2b which is smaller in an inside diameter than a diameter of the inner ring shoulder, and divided into two pieces along the axial line at the internal periphery of both the axial ends of the outer ring member, and a labyrinth groove 3d which is recessed to the inside in the radial direction at both inner ring shoulders, and accommodates the internal peripheral part of the labyrinth protrusion in the labyrinth groove to form a labyrinth seal 5. |
