| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-aligning roller bearing with a sealing device capable of securely preventing foreign matter from entering inside of a bearing part by properly maintaining contacting pressure of a seal lip to an allowable aligning angle even under a severe environment such as steel facilities.SOLUTION: A self-aligning roller bearing with a sealing device has an outer wheel 11a, an inner wheel 12a, a plurality of rollers 14 rollably arrange between an outer wheel locus groove 11a and an inner wheel locus groove 12a, a sealing device 15 arranged both end parts in an axial direction between the outer wheel 11 and the inner wheel 12 and sealing inside of the bearing, a convex surface 31 having a circular arc shape cross section and an inclining surface 32 located outside from the convex surface 31 in an axial direction and reducing a diameter as going outward in an axial direction are arranged over a whole periphery in a seal sliding contact 12b of the inner wheel 12 to which a seal lip part 22a of the sealing device 15 slidingly contacts, the inclining surface 32 is formed into a curved surface-shape around a bearing center, a center angle corresponding to the inclining surface 32 is set to an allowable aligning angle of the bearing. |
