| 摘要 |
PROBLEM TO BE SOLVED: To use suspended jig used in a normal bearing in common without eliminating such a characteristic that a high load capacity is obtained by reducing an inner diameter size of a seal holder part. SOLUTION: A conical surface composed of a conical surfaces 10, 19 is arranged on a surface engaged with a seal holder 9 and a seal body 17, and thereby, an end part 7a of a holder 7 stuck out from a bearing part 1 is entered in a space 23 formed by inclining the conical surface. As a result, the holder 7 is not interfered with the seal body 17, and the inner diameter size of the seal holder part 9a can be reduced. Also a size of an outside surface of the seal holder 9 is reduced without narrowing a width of the bearing part 1. Since the inner diameter of the seal holder part 9a is reduced, even if a suspended jig 800 is used, its claw 801 is brought into contact along the inner wheels 4 and the outside surface of the seal holder 9, and the seal body 17 is not broken since the seal body 17 is not push-pressed by the claw 801. |
