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公开(公告)号:US5137375A
公开(公告)日:1992-08-11
申请号:US699901
申请日:1991-05-14
CPC分类号: C21D9/36 , C23C8/80 , F16C33/30 , F16C33/62 , Y10S384/912
摘要: A rolling bearing having bearing rings and rolling members wherein at least one of the bearing rings and the rolling members essentially consists of an alloy steel which contains carbide-forming elements. The bearing rings and the rolling members are subjected to carburizing or carbo-nitriding and then hardening to form a rolling surface layer. The content of retained austenite (.gamma..sub.R vol %) in the rolling surface layer is from 20 to 45% by volume and the hardness (Hv) of the rolling surface layer reinforced by dispersion of fine carbides or carbonitrides with an average grain size of from 0.5 to 1.5 .mu.m with regard to the content of the retained austenite (.gamma..sub.R vol %) is within the range of:-4.7.times.(.gamma..sub.R vol %)+920.ltoreq.Hv.ltoreq.-4.7.times.(.gamma..sub.R vol %)+1020.
摘要翻译: 一种具有轴承环和滚动件的滚动轴承,其中至少一个轴承环和滚动件基本上由含有碳化物形成元件的合金钢组成。 对轴承圈和滚动体进行渗碳或碳氮化,然后进行硬化以形成滚动表面层。 滚动面层中的残留奥氏体含量(γR vol%)为20〜45体积%,通过将碳化硅或碳氮化钛的平均粒径分散而得到的滚动面层的硬度(Hv) 相对于残留奥氏体(γR vol%)的含量为0.5〜1.5μm的范围为:-4.7×(γR vol%)+ 920 Hv <= 4.7x(γR vol%)+ 1020。
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公开(公告)号:US4309916A
公开(公告)日:1982-01-12
申请号:US112111
申请日:1980-01-14
CPC分类号: F16H57/029 , F16C19/548 , F16C19/56 , F16C33/6603 , F16C33/6637 , F16C33/6696 , F16H57/04 , F16C2361/61 , F16H2048/423 , Y10T74/19991
摘要: Bearing apparatus for gear type power transmission systems comprising a gear casing containing a lubricating oil, gearing for power transmission retained in the casing and a bearing carried in the casing for rotatably supporting the gear shaft employs a seal for the bearing containing a lubricant so that the bearing is lubricated separately and independently of the oil in the casing.
摘要翻译: 用于齿轮式动力传动系统的轴承装置包括容纳润滑油的齿轮箱,保持在壳体中的动力传动装置的传动装置和承载在壳体中用于可旋转地支撑齿轮轴的轴承,用于包含润滑剂的轴承用密封件, 轴承单独润滑,独立于外壳中的油。
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公开(公告)号:US5147140A
公开(公告)日:1992-09-15
申请号:US799437
申请日:1991-11-26
申请人: Yasuo Murakami , Shinichi Shirota , Shigeru Okita
发明人: Yasuo Murakami , Shinichi Shirota , Shigeru Okita
CPC分类号: C21D9/40 , F16C33/30 , F16C33/62 , Y10S384/912
摘要: A ball-and-roller bearing provided with a bearing ring and rolling element has the surface hardness of at least one of the bearing ring and rolling element of Hv 900 or more and the minimal compression residual stress of 100 kgf/mm.sup.2 or more in the depth from the surface of the bearing ring and/or rolling element to the depth equivalent to a 2% of the mean diameter of the rolling element and at the same time, the bearing is closely sealed to prevent any foreign particles from being ingressed thereinto, thus making possible a significant improvement of its longevity.
摘要翻译: 设有轴承圈和滚动体的滚珠轴承具有Hv900以上的轴承环和滚动体中的至少一个的表面硬度,并且在最小的压缩残余应力为100kgf / mm 2以上的情况下 从轴承圈和/或滚动元件的表面的深度到相当于滚动元件的平均直径的2%的深度,并且同时密封轴承以防止任何外来的颗粒进入其中, 从而可以显着改善其寿命。
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公开(公告)号:US5427457A
公开(公告)日:1995-06-27
申请号:US134588
申请日:1993-10-12
申请人: Kyozaburo Furumura , Yasuo Murakami , Nobuaki Mitamura , Shinichi Shirota , Shigeru Okita , Kazuo Sekino
发明人: Kyozaburo Furumura , Yasuo Murakami , Nobuaki Mitamura , Shinichi Shirota , Shigeru Okita , Kazuo Sekino
IPC分类号: C21D1/78 , C21D6/00 , C21D9/36 , C21D9/40 , C23C8/32 , C23C8/80 , F16C33/30 , F16C33/32 , F16C33/34 , F16C33/62 , F16C19/00
CPC分类号: F16C33/32 , C21D9/36 , C21D9/40 , C23C8/32 , C23C8/80 , F16C33/30 , F16C33/34 , F16C33/62 , C21D1/78 , C21D2211/001 , C21D6/002 , Y10S384/912 , Y10S384/913
摘要: An object of this invention is to provide a rolling bearing in which, as for the rolling elements, it is unnecessary to employ a high level heat treatment such as carburizing or carbonitriding which requires a long period of time to achieve, and which is sufficiently long in service life even when used with a lubricant containing foreign matters. In a rolling bearing, the amount of residual austenite (.gamma..sub.R vol %) in the surface layer of at least one of the inner and outer races is in a range of 25 to 40 vol %, and the surface hardness (Hv) thereof meets the following condition:-4.7.times.(.gamma..sub.R vol %)+900.ltoreq.Hv.ltoreq.-4.7.times.(.gamma..sub.R vol %)+1000and the hardness of the rolling elements combined with the inner and outer races is higher by H.sub.R C 1 to 2 than that of the one of the inner and outer races.
摘要翻译: 本发明的目的是提供一种滚动轴承,其中对于滚动元件,不需要采用需要较长时间来实现并且足够长的高渗透度或碳氮共渗的高水平热处理 使用寿命即使与含有外来物质的润滑剂一起使用。 在滚动轴承中,至少一个内圈和外圈的表层中的残余奥氏体量(γR vol%)在25〜40vol%的范围内,其表面硬度(Hv)满足 以下条件:-4.7倍(γR vol%)+ 900 = Hv = - 4.7x(γR vol%)+ 1000,滚动元件与内圈和外圈组合的硬度高于 HRC 1比2比内圈和外圈之一。
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