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1. 发明专利

JP2010248612A Constituent member of bearing, process for production of same, and ball-and-roller bearing provided with the constituent member 有权
标题翻译：轴承构件，生产过程以及构件成员提供的滚珠轴承
公开(公告)号：JP2010248612A
公开(公告)日：2010-11-04
申请号：JP2009273804
申请日：2009-12-01
申请人： Jtekt Corp , 株式会社ジェイテクト
发明人： KIZAWA KATSUHIKO , MIKAMI TAKESHI , NAKAJIMA TSUTOMU , ONO KENTARO
IPC分类号： C22C38/00 , C21D1/06 , C21D9/40 , C22C38/24 , C23C8/32 , F16C33/62 , F16C33/64
摘要： PROBLEM TO BE SOLVED: To provide a constituent member of a bearing which can prolong the life of a ball-and-roller bearing and can ensure sufficient static load carrying capacity and dimensional stability, to provide a method for production of the constituent member, and to provide a ball-and-roller bearing which has a long life and exhibits sufficient static load carrying capacity and dimensional stability.
SOLUTION: Heat treatment such as carbonitriding treatment is performed to a formed and fabricated material to be obtained from steel containing 3.2-5.0 mass% of Cr, and 0.05 mass% or more and 0.5 mass% or less of V. Thus, each content of C, N of a surface layer within a range to 10 μm from the surface of the constituent member of the bearing of the ball-and-roller bearing is made into 1.1-1.6 mass%, and 0.1-1.0 mass%, Vickers hardness at a position of depth of 50 μm from the surface is made into 740-900 (Rockwell C hardness is 62-67), a γ amount at a position of depth of 10 μm from the surface is made into 20-55 volume%, particles with particle diameters of 0.2-2 μm of vanadium nitride and/or particles with particle diameters of 0.2-2 μm of vanadium nitride and/or vanadium carbonitride are made to exist on the surface layer within the range to 10 μm from the surface, and area ratio of the particles on the surface layer within the range to 10 μm from the surface is made into 1-10%.
COPYRIGHT: (C)2011,JPO&INPIT
摘要翻译：要解决的问题：为了提供能够延长滚珠轴承寿命的轴承的构成部件，并且可以确保足够的静态承载能力和尺寸稳定性，以提供一种生产该组分的方法并提供寿命长且具有足够的静载荷能力和尺寸稳定性的滚珠轴承。对于由含3.2-5.0质量％的Cr和0.05质量％以上且0.5质量％以下的钢的钢制成的成形材料进行碳氮共处理等热处理。因此，将滚珠轴承的轴承的构成构件的表面的表面层的C，N的含量分别设定为1.1〜1.6质量％，0.1〜1.0质量％表面深度为50μm的维氏硬度为740-900（洛氏C硬度为62-67），表面深度为10μm的位置的γ量为20-55体积％的钒酸银和/或碳氮化钒的粒径为0.2-2μm的粒子的氮化钒粒子和/或粒子直径为0.2-2μm的颗粒在表层上存在于距离表面层上的颗粒的表面积和面积比在表面上至10μm的范围内 1-10％。版权所有（C）2011，JPO＆INPIT

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