| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a rolling bearing which is inexpensive and is excellent in assemblability, can reliably prevent inner rings from being separated and can be suitably used for a crane sheave. <P>SOLUTION: An annular protrusion part 11e which protrudes in the axial direction is disposed on a first side surface 11d of a first inner ring 11 and an annular recessed part 12e in which the annular protrusion part 11e is fit, is disposed on a second side surface 12d of a second inner ring 12. A first annular semi-groove 11f is formed on the outer circumferential surface of the annular protrusion part 11e, a second annular semi-groove 12f is formed on the inner circumferential surface of the second inner wheel 12 which divides the annular recessed part 12e, and an annular groove 16 is formed with the first annular semi-groove 11f and the second annular semi-groove 12f by fitting the annular protrusion part 11e and the annular recessed part 12e to each other. A polygonal connection wire 20 is disposed on the annular groove 16 and the first and second inner rings 11, 12 are fixed in the axial direction by the connection wire 20. <P>COPYRIGHT: (C)2013,JPO&INPIT |
