| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a low-cost bearing ring of a rolling bearing, hardly causing remarkable deterioration in rolling fatigue characteristics and capable of obtaining practical durability, even when steel products having cleanliness not so high are used. <P>SOLUTION: A bearing ring of a rolling bearing is made of a material obtained by processing a rolled steel sheet having a composition containing, in mass%, 0.02-1.20% of C, 0.02-2.00% of Si, 0.10-1.50% of Mn, 0.001-0.030% of P, 0.0005-0.030% of S, 0.02-2.00% of Cr and 0.0001-0.0030% of O, further according to necessity one or more of 2.00% or less of Ni, 0.50% or less of Mo, 0.50% or less of V, 0.50% or less of Nb, 0.25% or less of Ti and 0.0050% or less of B, and the balance of Fe and inevitable impurities. In the bearing ring of a rolling bearing, an angle between the normal of a bearing face and the normal originating from a rolled sheet surface is in a range of 0-45°. <P>COPYRIGHT: (C)2013,JPO&INPIT |
