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11. 发明授权

US07237963B2 Rolling part and power transmission part 失效
标题翻译：滚动部件和动力传动部件
公开(公告)号：US07237963B2
公开(公告)日：2007-07-03
申请号：US10515314
申请日：2003-05-19
申请人： Yukio Matsubara , Kikuo Maeda
发明人： Yukio Matsubara , Kikuo Maeda
IPC分类号： F16C19/08
CPC分类号： C22C38/18 , B60B27/00 , C21D1/10 , C22C38/02 , C22C38/04 , F16C33/30 , F16C33/32 , F16C33/62 , F16C2326/02 , Y02P10/253
摘要： There is provided a rolling component formed of a steel material of the medium carbon steel level that provides a rolling life improved to be comparable to that of bearing steel and also provides improved characteristic against surface-cracking, and a power transmission component including the rolling component. To achieve this, the rolling component is formed of steel having an induction hardened portion having a stress intensity factor range associated with tension associated-fatigue crack extension that has a lower limit ΔKth of 6.2 Mpa√m.
摘要翻译：提供了一种由中碳钢钢板钢材制成的滚动部件，其提供了与轴承钢相当的滚动寿命，并提供了改进的表面裂纹特性，以及包括滚动部件的动力传递部件。为了实现这一点，滚动部件由具有感应淬火部分的钢制成，该感应淬火部分具有与张力相关 - 疲劳裂纹延伸相关的应力强度因子范围，其具有下限DeltaKth为6.2Mpa√m。

12. 发明申请

US20060226584A1 Steel-member manufacturing facility, thin bearing-member and thrust bearing 失效
标题翻译：钢构件制造设备，薄型轴承构件和推力轴承
公开(公告)号：US20060226584A1
公开(公告)日：2006-10-12
申请号：US11396650
申请日：2006-04-04
申请人： Kikuo Maeda
发明人： Kikuo Maeda
IPC分类号： C21D1/62 , C21D9/62
CPC分类号： C21D1/10 , C21D1/09 , C21D1/18 , C21D1/62 , C21D9/40 , C21D9/62 , F16C19/30 , F16C33/64 , Y02P10/253
摘要： A steel-member manufacturing facility that can suppress distortion occurring in a quenching process while preventing increase in manufacturing cost includes: a die-cutting apparatus to form a washer; a high-frequency induction heating apparatus for quenching purpose as well as a mold-constraining cooling apparatus that heat the washer as formed and thereafter cool the washer so as to quench-harden the washer; and a high-frequency induction heating apparatus for tempering purpose that heats the quench-hardened washer so as to temper the washer. The high-frequency induction heating apparatus for quenching purpose can heat the washer by induction heating to the temperature of at least Ac1 point. The mold-constraining cooling apparatus uses a mold to constrain the heated washer while using the mold as a cooling member, thereby cooling the washer to the temperature of at most Ms point.
摘要翻译：能够抑制淬火工序中发生的变形同时防止制造成本增加的钢构件制造设备包括：形成垫圈的冲切装置; 用于淬火的高频感应加热装置以及加热所形成的垫圈的模具约束冷却装置，然后冷却垫圈以淬火硬化洗衣机; 以及用于回火的高频感应加热装置，用于加热淬火硬化的垫圈以调节洗衣机。用于淬火的高频感应加热装置可以通过感应加热将洗衣机加热至至少A 1 C 1点的温度。模具约束冷却装置使用模具来限制加热的垫圈，同时使用模具作为冷却构件，从而将垫圈冷却至多至多达点的温度。

13. 发明授权

US06808571B2 Heat resistant carburized rolling bearing component and manufacturing method thereof 失效
标题翻译：耐热渗碳滚动轴承部件及其制造方法
公开(公告)号：US06808571B2
公开(公告)日：2004-10-26
申请号：US09930172
申请日：2001-08-16
申请人： Hiromasa Tanaka , Kikuo Maeda , Tosiya Kinami , Sadayuki Nakamura
发明人： Hiromasa Tanaka , Kikuo Maeda , Tosiya Kinami , Sadayuki Nakamura
IPC分类号： C21D940
CPC分类号： C23C8/80
摘要： A heat resistant carburized rolling bearing component is formed of a steel material at least containing, as alloy elements in a matrix, by mass %, at least 0.1% and at most 0.4% of C, at least 0.3% and at most 3.0% of Si, at least 0.2% and at most 2.0% of Mn, at most 0.03% of P, at most 0.03% of S, at least 0.3% and less tan 2.5% of Cr, at least 0.1% and less than 2.0% of Ni, at most 0.050% of Al, at most 0.003% of Ti, at most 0.0015% of O and at most 0.025% of N, and a remaining part of Fe and an unavoidable impurity, and the bearing component is prepared by performing carburizing carbo-nitriding process followed by quenching, and after quenching, tempering at a tempering temperature of at least 200° C. and at most 350° C., and surface hardness after tempering process is at least HRC57. Thus, an inexpensive heat resistant carburized rolling bearing component and manufacturing method thereof can be obtained, which realizes superior rolling fatigue life, wear resistance and dimensional stability under the environment involving foreign matters and high temperature.
摘要翻译：耐热渗碳滚动轴承部件由钢材形成，所述钢材料至少含有基质中的合金元素，以质量％计至少0.1％和至多0.4％的C，至少0.3％和至多3.0％ Si，Mn的至少0.2％和至多2.0％，最多0.03％的P，至多0.03％的S，至少0.3％和更少的tan 2.5％的Cr，至少0.1％和小于2.0％的 Ni，Al：0.050以上，Ti：0.003％以下，O：0.0015％以下，N：0.025％以下，Fe：剩余部分，不可避免的杂质：0.008％以下，通过渗碳碳氮化处理后淬火，淬火后回火温度至少为200℃，最高为350℃，回火处理后的表面硬度为HRC57以上。因此，可以获得廉价的耐热渗碳滚动轴承部件及其制造方法，其在涉及异物和高温的环境下实现优异的滚动疲劳寿命，耐磨性和尺寸稳定性。

14. 发明授权

US6158263A Roll supporting device for a rolling mill arrangement 有权
标题翻译：用于轧机装置的辊支撑装置
公开(公告)号：US6158263A
公开(公告)日：2000-12-12
申请号：US335923
申请日：1999-06-18
申请人： Kikuo Maeda , Shinobu Nasu , Hideshi Nishiwaki
发明人： Kikuo Maeda , Shinobu Nasu , Hideshi Nishiwaki
IPC分类号： F16C19/38 , B21B13/02 , B21B31/00 , B21B31/07 , F16C13/02 , F16C33/34 , F16C33/62
CPC分类号： F16C19/388 , B21B31/07 , F16C13/02 , F16C33/34 , F16C33/62 , B21B2013/025 , Y10S148/906
摘要： A roll supporting device for a rolling mill arrangement, supporting rolls rotatably to housings by double row roller bearings or multi-row roller bearings. On surfaces of bearing rings and rollers of the roller bearing are provided carbonitrided layers of 0.80% or greater in carbon content and of Rockwell hardness HRC 58 or greater. The carbonitrided layers are formed to contain residual austenite content of 25-30% by volume. By virtue of the carbonitrided layers, the strength against the surface-initiated type damage to the contact surfaces of the bearing rings and the rollers is improved, so that the enhancement of the life of the roll supporting device, especially the lives of the bearing portions thereof, can be achieved to contribute to the prolongation of inspection and maintenance periods and to the reduction of inspection and maintenance costs.
摘要翻译：用于轧机装置的辊支撑装置，通过双列滚子轴承或多列滚子轴承支撑辊可旋转地转动到壳体。在滚子轴承的轴承环和滚子的表面上，碳含量为0.80％以上，洛氏硬度为HRC58以上的碳氮共渗层。碳氮共渗层形成为含有25-30体积％的残余奥氏体含量。由于碳氮共渗层，提高了表面起始型对轴承环和辊的接触表面的损伤的强度，从而提高辊支撑装置的寿命，特别是轴承部分的寿命可以实现延长检查和维护期间以及降低检查和维护成本。

15. 发明授权

US09404531B2 Bearing apparatus for wheel 有权
标题翻译：车轮轴承装置
公开(公告)号：US09404531B2
公开(公告)日：2016-08-02
申请号：US11878678
申请日：2007-07-26
申请人： Kikuo Maeda , Hisashi Ohtsuki
发明人： Kikuo Maeda , Hisashi Ohtsuki
IPC分类号： F16C13/00 , F16C19/38 , B60B27/00 , F16C33/64 , F16C35/063
CPC分类号： F16C19/386 , B60B27/001 , F16C33/64 , F16C35/063 , F16C2326/02
摘要： A bearing apparatus for wheel with ensured high durability by including a part with improved fatigue strength in a non-hardened portion includes an outer member, an inner member, and a roller. The inner member includes a hub ring made of steel and having a wheel attachment flange formed. The hub ring has a hardened portion hardened to attain at least 50 HRC as a result of quench hardening and a non-hardened portion which is a portion other than the hardened portion. Compressive stress in a range from at least 50 MPa to at most 500 MPa remains in the surface of the non-hardened portion.
摘要翻译：通过在非硬化部中包括具有改善的疲劳强度的部分，确保高耐久性的车轮用轴承装置包括外部构件，内部构件和辊。内部构件包括由钢制成并具有形成的轮附接凸缘的轮毂环。轮毂环具有硬化部分，由淬火硬化得到至少50HRC，并且硬化部分是硬化部分以外的部分。在非硬化部分的表面上，残留在至少50MPa至500MPa范围内的压缩应力。

16. 发明申请

US20120137523A1 PROCESS FOR MANUFACTURING ROLLING CONTACT MEMBER, PROCESS FOR MANUFACTURING ROLLING BEARING, RACEWAY MEMBER OF ROLLING BEARING AND ROLLING BEARING 审中-公开
标题翻译：制造滚动接触构件的方法，制造滚动轴承的过程，滚动轴承和滚动轴承的研讨会成员
公开(公告)号：US20120137523A1
公开(公告)日：2012-06-07
申请号：US13310423
申请日：2011-12-02
申请人： Kikuo Maeda , Yuji Okamoto
发明人： Kikuo Maeda , Yuji Okamoto
IPC分类号： B21K1/02 , F16C43/06 , B21K1/04
CPC分类号： B21K1/04 , B23P15/003 , F16C19/06 , F16C19/364 , F16C33/32 , F16C33/366 , F16C33/64 , Y10T29/49643 , Y10T29/49679 , Y10T29/49684 , Y10T29/49709
摘要： A process for manufacturing a rolling contact member comprises preparing a steel member consisting of a steel containing 0.7 mass % or more of carbon; performing hot forging of the steel member prepared in the steel member preparation step to thereby obtain a blank ring as the first forged member; performing turning of the blank ring obtained in the hot forging step to thereby remove part of the blank ring; and performing cold forging of the blank ring wrought in the first turning step to thereby obtain a stepped ring. In the steps subsequent to the cold forging step, on the stepped ring, the area wrought in the first turning step is not subjected to cutting.
摘要翻译：制造滚动接触构件的方法包括：制备由含有0.7质量％以上的碳的钢构成的钢构件; 对钢构件制备工序中制备的钢构件进行热锻，得到作为第一锻造构件的坯环; 执行在热锻造步骤中获得的坯环的转动，从而去除坯环的一部分; 对第一转弯工序中锻造的坯环进行冷锻，得到阶梯环。在冷锻步骤之后的步骤中，在台阶环上，第一转动步骤中锻造的区域不进行切割。

17. 发明授权

US07867345B2 Manufacturing method of thin component, bearing ring, thrust needle roller bearing, manufacturing method of rolling bearing ring, rolling bearing ring, and rolling bearing 有权
标题翻译：薄部件，轴承圈，推力滚针轴承，滚动轴承圈，滚动轴承圈和滚动轴承的制造方法
公开(公告)号：US07867345B2
公开(公告)日：2011-01-11
申请号：US10574779
申请日：2004-10-01
申请人： Kikuo Maeda , Yuuki Kataoka , Mitsuo Sasabe
发明人： Kikuo Maeda , Yuuki Kataoka , Mitsuo Sasabe
IPC分类号： C21D9/40
CPC分类号： F16C19/46 , C21D1/673 , C21D9/40 , F16C19/30 , F16C19/48 , F16C33/64
摘要： A manufacturing method of a thin component is characterized by heating a thin component, and thereafter, while sizing with molds and using molds as cooling media, performing one of quenching and isothermal transformation processes on thin component. Thus, a manufacturing method of a thin component without warping or deformation in heat treatment with even and high hardness, a bearing ring, a thrust needle roller bearing, a manufacturing method of a rolling bearing ring, a rolling bearing ring, and a rolling bearing can be obtained.
摘要翻译：薄部件的制造方法的特征在于加热薄组分，然后在用模具定型并使用模具作为冷却介质的同时，对薄组分进行淬火和等温转化过程之一。因此，具有均匀和高硬度的热处理中的薄部件的翘曲或变形的制造方法，轴承环，推力滚针轴承，滚动轴承圈的制造方法，滚动轴承圈和滚动轴承可以获得。

18. 发明申请

US20100150489A1 ROLLING MEMBER, ROLLING BEARING AND PROCESS FOR MANUFACTURING ROLLING MEMBER 有权
标题翻译：滚动构件，滚动轴承和制造滚动构件的方法
公开(公告)号：US20100150489A1
公开(公告)日：2010-06-17
申请号：US12600617
申请日：2008-05-09
申请人： Kikuo Maeda
发明人： Kikuo Maeda
IPC分类号： F16C33/34 , C23C8/32 , C23C8/22 , C22C38/44 , C22C38/46
CPC分类号： C23C8/22 , C21D1/06 , C21D1/18 , C21D9/40 , C22C38/02 , C22C38/04 , C22C38/44 , C22C38/46 , C23C8/32 , C23C8/80 , F16C33/62 , F16C33/64 , F16H3/0915 , F16H3/16 , F16H9/18 , F16H41/24
摘要： The invention provides a deep groove ball bearing which exhibits a long life even in a high-temperature environment or an environment involving the penetration of water in spite of its low alloying element content. The outer race, inner race and ball constituting the bearing are made of a steel which contains 0.3 to 0.4% of carbon, 0.3 to 0.7% of silicon, 0.3 to 0.8% of manganese, 0.5 to 1.2% of nickel, 1.6 to 2.5% of chromium, 0.1 to 0.7% of molybdenum and 0.2 to 0.4 of vanadium with the balance consisting of iron and impurities and in a total content of silicon and manganese of 1.0% or below, a total content of nickel and chromium of 2.3% or above and a total content of chromium, molybdenum and vanadium of 3.0% or below. Surface hardened layers are formed in the outer race, inner race and ball respectively and the surface hardened layers exhibit hardness of 725 to 800 HV, while the maximum particle size of carbides dispersed in the surface hardened layers is 10 μm or below and the area ratio thereof is 7 to 25%. Further, the inner parts exhibit hardness of 450 to 650 HV.
摘要翻译：本发明提供一种深沟球轴承，即使在高温环境或涉及水渗透的环境中，即使其合金元素含量低，也能显示出长寿命。构成轴承的外圈，内圈和球由钢，其含有0.3〜0.4％的碳，0.3〜0.7％的硅，0.3〜0.8％的锰，0.5〜1.2％的镍，1.6〜2.5％的铬，0.1〜0.7％的钼和0.2〜0.4的钒，余量由铁和杂质组成，硅和锰的总含量为1.0％以下，镍和铬的总含量为2.3％以上铬，钼，钒的总含量为3.0％以下。表面硬化层分别形成在外圈，内圈和球中，表面硬化层的硬度为725〜800HV，分散在表面硬化层中的碳化物的最大粒径为10μm以下，面积比为7〜25％。此外，内部部件的硬度为450〜650HV。

19. 发明申请

US20060013520A1 Roller thrust bearing 失效
公开(公告)号：US20060013520A1
公开(公告)日：2006-01-19
申请号：US11205085
申请日：2005-08-17
申请人： Kenji Tamada , Kikuo Maeda , Tomoaki Kawamura , Hirokazu Nakashima , Takumi Fujita , Mitsuo Sasabe
发明人： Kenji Tamada , Kikuo Maeda , Tomoaki Kawamura , Hirokazu Nakashima , Takumi Fujita , Mitsuo Sasabe
IPC分类号： F16C33/34
CPC分类号： F16C33/547 , F04B27/1063 , F16C19/305 , F16C23/088 , F16C33/34 , F16C33/4635 , F16C33/48 , F16C33/543 , F16C33/64 , F16C2240/40 , F16C2240/50 , F16C2360/00 , Y10T29/49636 , Y10T29/49643 , Y10T29/49645 , Y10T29/49689 , Y10T29/49693
摘要： There is provided a roller thrust bearing providing reduced differential slip, free of significant friction and wear, and providing increased longevity against flaking. The present invention provides a thrust bearing in the form of a roller thrust bearing including at least two radially arranged rows of rollers and a cage holding the rollers, the rollers including at least one roller crowned.

20. 发明申请

US20050084194A1 Roller thrust bearing 有权
公开(公告)号：US20050084194A1
公开(公告)日：2005-04-21
申请号：US10971149
申请日：2004-10-25
申请人： Kenji Tamada , Kikuo Maeda , Tomoaki Kawamura , Hirokazu Nakashima , Takumi Fujita , Mitsuo Sasabe
发明人： Kenji Tamada , Kikuo Maeda , Tomoaki Kawamura , Hirokazu Nakashima , Takumi Fujita , Mitsuo Sasabe
IPC分类号： F16C19/38 , F04B27/10 , F16C19/30 , F16C33/34 , F16C33/48 , F16C33/54 , F16C33/64
CPC分类号： F16C33/547 , F04B27/1063 , F16C19/305 , F16C23/088 , F16C33/34 , F16C33/4635 , F16C33/48 , F16C33/543 , F16C33/64 , F16C2240/40 , F16C2240/50 , F16C2360/00 , Y10T29/49636 , Y10T29/49643 , Y10T29/49645 , Y10T29/49689 , Y10T29/49693
摘要： There is provided a roller thrust bearing providing reduced differential slip, free of significant friction and wear, and providing increased longevity against flaking. The present invention provides a thrust bearing in the form of a roller thrust bearing including at least two radially arranged rows of rollers and a cage holding the rollers, the rollers including at least one roller crowned.

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