公开(公告)号：JP2003013973A

公开(公告)日：2003-01-15

申请号：JP2001196291

申请日：2001-06-28

Applicant: Ntn Corp ,  エヌティエヌ株式会社

Inventor： KAWAMURA TAKAYUKI ,  MIKAMI EISHIN ,  ASO MITSUNARI

IPC: F16C33/66 ,  C10M105/18 ,  C10M105/36 ,  C10M115/08 ,  C10M125/00 ,  C10M125/20 ,  C10M125/24 ,  C10M169/00 ,  C10N10/02 ,  C10N10/12 ,  C10N30/00 ,  C10N30/06 ,  C10N30/08 ,  C10N40/02 ,  C10N50/10

CPC classification number: C10M169/00 ,  C10M2201/08 ,  C10M2201/082 ,  C10M2201/083 ,  C10M2201/085 ,  C10M2201/086 ,  C10M2207/0406 ,  C10M2207/2855 ,  C10N2230/08 ,  C10N2240/02 ,  C10N2240/20 ,  C10N2250/10

Abstract: PROBLEM TO BE SOLVED: To provide a heat-resistant, high speed, and high-loaded rolling bearing, which is used for accessory units or electrically-powered components, having non abnormal flaking phenomena, sufficiently long life, and superior durability under high temperature, high speed, and high loading operating conditions.
SOLUTION: Grease composition, in which diurea compound showed in the following chemical expression 5 is combined as a thickener and a passive agent such as sodium nitrite is also added at 0.1 to 5 wt.% in base oil mixed alkyl diphenyl ether oil and aromatic ether oil with 20 to 150 mm
2 /s of dynamic viscosity at 40°C in a range from 50:50 to 80:20 (weight ratio) and is filled in the heat-resistant, high speed, and high-loaded rolling bearing. (where, R
2 shows an aromatic hydrocarbon group having 6 to 15C, R
1 and R
3 show an aromatic hydrocarbon group having 6 to 12C, or an cycloalkane family hydrocarbon group having 6 to 20C, a rate of aromatic hydrocarbon of R
1 and R
3 occupied in a full amount are 1/2 or more in a mole ratio, and R
1 and R
3 may be the same or different.
COPYRIGHT: (C)2003,JPO

Abstract translation: 要解决的问题：为了提供用于附件单元或电动部件的耐热，高速，高负载的滚动轴承，具有不正常的剥离现象，足够长的使用寿命和在高温下具有优异的耐久性 ，高速和高负荷运行条件。 解决方案：其中二脲化合物显示为以下化学表达式5的油脂组合物作为增稠剂组合，还在0.1至5重量％的基础油混合烷基二苯醚油和芳族醚中加入亚硝酸钠等被动剂 在50℃至80:20（重量比）的范围内在40℃下具有20至150mm 2 / s的动态粘度的油，并填充在耐热，高速和高负载 滚动轴承。 （其中，R 2表示具有6〜15个碳原子的芳香族烃基，R 1和R 3表示6〜12个C的芳香族烃基，6〜20℃的环烷烃系烃基， 全部摩尔比为1/2以上，R1和R3可以相同或不同。

公开(公告)号：JP2009019128A

公开(公告)日：2009-01-29

申请号：JP2007183228

申请日：2007-07-12

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIKAMI EISHIN

IPC: C10M169/00 ,  C10M107/02 ,  C10M115/08 ,  C10M135/10 ,  C10N10/02 ,  C10N20/00 ,  C10N20/02 ,  C10N30/06 ,  C10N40/02 ,  C10N50/10 ,  F16C19/02 ,  F16C19/22 ,  F16C19/34 ,  F16C33/66

CPC classification number: F16C33/6633 ,  F16C19/364

Abstract: PROBLEM TO BE SOLVED: To provide a grease composition preventing friction abrasion in a lubrication surface in a state of high load or causing sliding motion and having excellent long-term durability and to provide a grease-sealed rolling bearing in which the grease is sealed.
SOLUTION: The grease composition comprises a base oil, a thickener and an additive. Furthermore, the additive contains at least a lithium aromatic sulfonate which is compounded in an amount of 0.1-15 wt.% based on the whole grease composition. The grease composition is sealed in a tapered roller bearing 1 as one example of the grease-sealed rolling bearing.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种防止润滑表面摩擦磨损的润滑脂组合物，该润滑脂组合物在高负荷或滑动运动的状态下具有优异的长期耐久性，并提供一种润滑脂密封的滚动轴承，其中润滑脂 被密封。

解决方案：润滑脂组合物包含基础油，增稠剂和添加剂。 此外，添加剂至少含有芳族磺酸锂，其以相对于整个润滑脂组合物为0.1-15重量％的量配混。 润滑脂组合物作为润滑脂密封的滚动轴承的一个实例被密封在圆锥滚子轴承1中。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008309505A

公开(公告)日：2008-12-25

申请号：JP2007154855

申请日：2007-06-12

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIKAMI EISHIN ,  KAWAMURA TAKAYUKI

IPC: G01M13/04

Abstract: PROBLEM TO BE SOLVED: To provide a bearing testing device and bearing test method, which reproduces precisely in a short period of time, brittle separation caused by hydrogen embrittlement.
SOLUTION: A test bearing 2 and a dummy bearing 3 are mounted at an interval on a rotating shaft 1, and respective outer rings 2b, 3b of the test bearing 2 and the dummy bearing 3 are fixed to housings 4a, 4b insulated mutually. A pedestal 9 of the housings 4a, 4b is supported by a coil spring 8, and vertical vibration is applied to the test bearing 2 by a vibration motor 10 mounted on the pedestal 9. A current is made to flow between an inner ring 2a and the outer ring 2b of the test bearing 2 through a ball 2c by energizing the interval between contact terminals 10a, 10b mounted on each housing 4a, 4b, and thereby hydrogen is generated forcibly by electrolysis or the like from grease enclosed into the test bearing 2, and hydrogen generation is accelerated by enlarging vibration or sliding in the test bearing 2, and brittle separation caused by hydrogen embrittlement is reproduced precisely in a short period of time.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供在短时间内精确再现的轴承试验装置和轴承试验方法，由氢脆引起的脆性分离。 解决方案：试验轴承2和假轴承3以一定间隔安装在旋转轴1上，并且测试轴承2和假轴承3的各个外圈2b，3b固定到绝缘的壳体4a，4b上 相互。 壳体4a，4b的基座9由螺旋弹簧8支撑，并且通过安装在基座9上的振动马达10向测试轴承2施加垂直振动。电流在内圈2a和 通过对安装在每个壳体4a，4b上的接触端子10a，10b之间的间隔进行激励，从而通过球2c的测试轴承2的外圈2b由包围在测试轴承2中的油脂的电解等强制地产生 ，并且通过在试验轴承2中增大振动或滑动来加速氢的产生，并且在短时间内精确地再现由氢脆引起的脆性分离。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008286661A

公开(公告)日：2008-11-27

申请号：JP2007132472

申请日：2007-05-18

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： KAWAMURA TAKAYUKI ,  MIKAMI EISHIN

IPC: G01M13/04 ,  F16C19/52

Abstract: PROBLEM TO BE SOLVED: To provide a device and a method for testing a bearing, capable of reproducing brittle separation caused by hydrogen brittleness, in a short time and with precision.
SOLUTION: A test bearing 2 and a dummy bearing 3 are mounted at an interval on a rotary axis 1 driven with a belt by a motor 5, to which a load is applied by a tension of an endless belt 7. The outer ring 2b of the test bearing 2 is fixed on the housing 4a via an outer ring supporting member 8 having low rigidity, and the outer ring 3b of the dummy bearing 3 is fixed directly on another housing 4b. The interval between contact terminals 9a, 9b mounted on each housing 4a, 4b is energized; and by making a current to flow between an inner ring 2a of the outer ring 2b via a ball 2c, hydrogen is generated forcibly by electrolysis and the like from grease enclosed in the test bearing 2, and generation of hydrogen is accelerated with increase in vibration or slipping in the test bearing 2, and thereby the brittle separation caused by hydrogen brittleness can be reproduced, in a short time and with precision.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于测试轴承的装置和方法，其能够在短时间内和精确地再现由氢脆性引起的脆性分离。

解决方案：试验轴承2和假轴承3以一定间隔安装在由皮带驱动的旋转轴线1上，该马达5由环形皮带7的张力施加负载。马达5的外部 试验轴承2的环2b经由低刚性的外圈支撑部件8固定在壳体4a上，假轴承3的外圈3b直接固定在另一壳体4b上。 安装在每个壳体4a，4b上的接触端子9a，9b之间的间隔被通电; 并且通过使电流经由球2c在外圈2b的内圈2a之间流动，通过由包围在试验轴承2中的油脂进行电解等强制地产生氢，并且随着振动的增加，氢的产生被加速 或滑动在试验轴承2中，从而可以在短时间内和精确地再现由氢脆性引起的脆性分离。 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008274076A

公开(公告)日：2008-11-13

申请号：JP2007118458

申请日：2007-04-27

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIKAMI EISHIN

IPC: C10M169/00 ,  C10M105/18 ,  C10M107/02 ,  C10M115/08 ,  C10M129/18 ,  C10N30/00 ,  C10N30/06 ,  C10N40/02 ,  C10N40/04 ,  C10N50/10 ,  F16C33/66

Abstract: PROBLEM TO BE SOLVED: To provide a grease composition effectively preventing exfoliation on a rolling surface, in a grease-enclosed bearing, which exfoliation is caused by hydrogen embrittlement, and to provide the grease-enclosed bearing.
SOLUTION: A grease-enclosed bearing 1 prepared by enclosing a grease composition 7 is provided, wherein the grease composition 7 is the one provided by compounding an additive in a base grease comprising a base oil and a thickener, the additive comprises at least an epoxy compound, and the compounding rate of the epoxy compound is 0.05-10 pts.wt. based on 100 pts.wt. base grease.
COPYRIGHT: (C)2009,JPO&INPIT

Abstract translation: 要解决的问题：提供一种润滑脂组合物，其有效地防止在由氢脆引起的剥离的润滑脂封闭轴承中的滚动表面上的剥离，并且提供油封封闭的轴承。 解决方案：提供通过包封润滑脂组合物7制备的润滑脂封闭轴承1，其中润滑脂组合物7是通过将添加剂与包含基础油和增稠剂的基础润滑脂混合而提供的润滑脂组合物7，该添加剂包括 至少一种环氧化合物，而环氧化合物的配合比为0.05-10重量份。 基于100重量 基础润滑脂 版权所有（C）2009，JPO＆INPIT

公开(公告)号：JP2008133483A

公开(公告)日：2008-06-12

申请号：JP2008021048

申请日：2008-01-31

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： KATAOKA MARI ,  MIKAMI EISHIN

IPC: C08L101/16 ,  C08K7/02 ,  F16C33/44 ,  F16C33/56

Abstract: PROBLEM TO BE SOLVED: To provide a rolling bearing using an environmentally friendly cage having a moderate strength.
SOLUTION: The rolling bearing uses the cage made of a material obtained by adding a filler to a biodegradable resin, provided that the biodegradable resin is chosen from polybutylene succinate, polyethylene terephthalate copolymer, polyhydroxybutyric acid, polylactic acid or mixtures or copolymers thereof.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种具有适度强度的环保型保持架的滚动轴承。 解决方案：滚动轴承使用由通过向生物降解性树脂中添加填料而获得的材料制成的保持架，只要生物降解性树脂选自聚丁二酸丁二醇酯，聚对苯二甲酸乙二醇酯共聚物，聚羟基丁酸，聚乳酸或其混合物或共聚物 。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008032079A

公开(公告)日：2008-02-14

申请号：JP2006204596

申请日：2006-07-27

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIKAMI EISHIN ,  MURAMATSU MAKOTO

IPC: F16C33/78 ,  F16C33/66

Abstract: PROBLEM TO BE SOLVED: To provide a grease-sealed rolling bearing which can accurately keep the sealing ability of the sealed type rolling bearing, and also can effectively prevent the peeling of a rolling surface caused by hydrogen embrittlement.
SOLUTION: In the grease-sealed rolling bearing, a bearing space between an inner race 1 and an outer race 2 is sealed by bringing a seal lip 5d formed of an elastic member of a contact seal 5 into contact with a seal sliding surface 1b formed on the inner race 1 or the outer race 2, and grease is sealed in the bearing space which is formed by compounding base grease composed of base oil and a viscosity additive, and an additive agent. The pressing force P of the seal lip 5d is set to be 1.6 N or larger. Further, the grease contains aluminum powder and at least one aluminum base additive agent selected from aluminum compounds, and the ratio of the combination of the aluminum base additive agent is 0.05 to 10 pts.wt. to 100 pts.wt. of the base grease.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供可以精确地保持密封型滚动轴承的密封能力的润滑脂密封的滚动轴承，并且还可以有效地防止由氢脆引起的滚动面的剥离。 解决方案：在润滑脂密封的滚动轴承中，通过使由接触密封件5的弹性构件形成的密封唇5d与密封滑动接触而密封内圈1和外圈2之间的轴承空间 形成在内圈1或外圈2上的表面1b，并且润滑脂被密封在由基础油和粘度添加剂组成的基础润滑脂和添加剂形成的轴承空间中。 密封唇5d的按压力P设定为1.6N以上。 此外，润滑脂含有铝粉末和至少一种选自铝化合物的铝基添加剂，铝基添加剂的组合比为0.05〜10重量份。 到100磅 的基础润滑脂。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2008008414A

公开(公告)日：2008-01-17

申请号：JP2006179797

申请日：2006-06-29

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIKAMI EISHIN

IPC: F16D41/06

Abstract: PROBLEM TO BE SOLVED: To provide a one-way clutch superior in heat resistance and wear resistance for preventing the generation of exfoliation or fretting accompanied by a white tissue change caused by hydrogen brittleness on rolling surfaces of rollers of the one-way clutch. SOLUTION: The one-way clutch 11 mounted to an output member comprises a clutch outer ring 13, and the plurality of rollers 14 provided on the inner diameter face of the outer ring 13. The clutch transmits only the unidirectional torque of the clutch outer ring 13 via the rollers 14 to the output member. Grease is filled in a clutch internal space where the plurality of rollers 14 are installed. The grease contains base oil, a thickener and an additive. The additive contains at least an aluminum additive agent selected from aluminum powder and an aluminum compound. The aluminum additive agent is mixed in base grease 100 at a rate of 0.01-15 pts.wt. to 100 pts.wt. COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供耐热性和耐磨性优异的单向离合器，以防止伴随由单向辊的滚动面上的氢脆性引起的白色组织变化的产生剥离或微动 离合器。 解决方案：安装到输出构件的单向离合器11包括离合器外圈13和设置在外圈13的内径面上的多个辊14.离合器仅传递单向离合器11的单向力矩 离合器外圈13经由辊14到达输出构件。 油脂填充在安装有多个辊14的离合器内部空间中。 润滑脂含有基础油，增稠剂和添加剂。 添加剂至少含有选自铝粉和铝化合物的铝添加剂。 铝添加剂以0.01-15重量份的比例混合在基础油脂100中。 到100磅 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007308759A

公开(公告)日：2007-11-29

申请号：JP2006138994

申请日：2006-05-18

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIKAMI EISHIN ,  MORI NOBUYUKI

IPC: C22C38/00 ,  C21D1/06 ,  C21D9/40 ,  C22C38/18 ,  F16C33/32 ,  F16C33/62 ,  H02K5/173

Abstract: PROBLEM TO BE SOLVED: To provide a rolling member for motor and a rolling bearing for motor by which hydrogen embrittlement flaking can be prevented while suppressing the increase of manufacturing costs.
SOLUTION: The rolling member for motor, constituting a ball bearing 1 for motor which axially supports, rotatably, a rotating shaft 32 of a motor 3 with respect to a housing 33 disposed in a manner to face an outer peripheral surface 32A of the rotating shaft 32, is composed of steel having a composition which consists of, by mass, 0.25 to 0.65% carbon, 0.15 to 0.35% silicon, 0.6 to 0.9% manganese and the balance iron with inevitable impurities and in which chromium content is controlled to ≤0.3 mass%. Further, a nitrogen-enriched layer is formed in the surface layer part.
COPYRIGHT: (C)2008,JPO&INPIT

Abstract translation: 要解决的问题：提供一种用于电动机的滚动部件和用于电动机的滚动轴承，通过该滚动轴承可以防止制造成本增加的氢脆剥离。 解决方案：用于电动机的滚动部件构成用于电动机的滚珠轴承1，其以相对于以与外部表面32A相对的外壳33的方式轴向地支撑电动机3的旋转轴32的方式 旋转轴32由具有质量为0.25〜0.65％的碳，0.15〜0.35％的硅，0.6〜0.9％的锰和余量的铁与不可避免的杂质组成的组成，其中铬含量被控制 至≤0.3质量％。 此外，在表面层部分中形成富氮层。 版权所有（C）2008，JPO＆INPIT

公开(公告)号：JP2007217520A

公开(公告)日：2007-08-30

申请号：JP2006038706

申请日：2006-02-16

Applicant: Ntn Corp ,  Ntn株式会社

Inventor： MIKAMI EISHIN ,  KAWAMURA TAKAYUKI

IPC: C10M169/00 ,  C10M105/18 ,  C10M107/02 ,  C10M115/08 ,  C10M119/24 ,  C10M125/04 ,  C10M125/10 ,  C10M125/20 ,  C10N10/06 ,  C10N20/06 ,  C10N30/00 ,  C10N40/02 ,  C10N50/10 ,  F16C33/66

Abstract: PROBLEM TO BE SOLVED: To provide a grease composition effectively preventing a rolling surface of a grease-containing bearing from flaking caused by hydrogen embrittlement, and the grease-containing bearing.
SOLUTION: The grease composition 7 is contained in the grease-containing bearing 1. The grease composition 7 is obtained by compounding an additive with a base grease comprising a base oil and a thickener, wherein the additive contains at least an aluminum additive chosen from an aluminum powder and an aluminum compound. The aluminum additive is compounded in an amount corresponding to 0.05-10 pts.wt. based on 100 pts.wt. base grease.
COPYRIGHT: (C)2007,JPO&INPIT

Abstract translation: 要解决的问题：提供有效地防止含油脂轴承的滚动面因氢脆而引起的剥离的润滑脂组合物和含油脂的轴承。 解决方案：润滑脂组合物7包含在含润滑脂的轴承1中。润滑脂组合物7通过将添加剂与包含基础油和增稠剂的基础润滑剂混合而获得，其中添加剂至少含有铝添加剂 选自铝粉和铝化合物。 铝添加剂的配合量相当于0.05-10重量份。 基于100重量 基础润滑脂 版权所有（C）2007，JPO＆INPIT