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1. 发明公开

EP2503168A1 ROTATION SUPPORT DEVICE FOR PINION SHAFT 失效
标题翻译：用于小齿轮轴的旋转支撑装置
公开(公告)号：EP2503168A1
公开(公告)日：2012-09-26
申请号：EP10831661.3
申请日：2010-11-19
申请人： NSK Ltd.
发明人： TANAKA, Takanori , SAITO, Tomoharu , TANOUE, Yasushi
IPC分类号： F16C33/58 , F16C19/16 , F16C19/18 , F16H48/06
CPC分类号： F16C19/163 , F16C19/182 , F16C19/505 , F16C19/548 , F16C19/56 , F16C41/02 , F16C2240/34 , F16C2240/46 , F16C2240/70 , F16C2240/76 , F16C2361/61 , F16H1/145 , F16H2048/423
摘要： Construction of a rotation support device for a pinion shaft is achieved that, together with being able to sufficiently maintain axial rigidity of a rolling bearing on the side opposite from the pinion gear side, it is able to sufficiently reduce the dynamic torque during operation and the starting torque at the start of operation. Together with using a single-row angular contact ball bearing 14a as the rolling bearing on the side opposite from the pinion gear side, the ratio of the radius of curvature Ro of the outer raceway 22a and the diameter Bd of the balls 25a (Ro/Bd) is regulated within the range 0.52
摘要翻译：实现了用于小齿轮轴的旋转支撑装置的构造，其能够充分保持滚动轴承在与小齿轮侧相反的一侧的轴向刚度，并且能够充分地减小操作期间的动态扭矩，并且在运行开始时启动扭矩。在与小齿轮侧相反的一侧使用单列角接触球轴承14a作为滚动轴承时，外侧滚道22a的曲率半径Ro与滚珠25a的直径Bd之比（Ro / Bd）在0.52

2. 发明公开

EP3372852A1 ROTATION SUPPORT DEVICE FOR PINION SHAFT 失效
公开(公告)号：EP3372852A1
公开(公告)日：2018-09-12
申请号：EP18168830.0
申请日：2010-11-19
申请人： NSK Ltd.
发明人： TANAKA, Takanori , SAITO, Tomoharu , TANOUE, Yasushi
IPC分类号： F16C19/16 , F16C19/18 , F16C19/50 , F16C19/54 , F16C19/56 , F16C41/02 , F16H1/14 , F16H48/42
CPC分类号： F16C19/163 , F16C19/182 , F16C19/505 , F16C19/548 , F16C19/56 , F16C41/02 , F16C2240/34 , F16C2240/46 , F16C2240/70 , F16C2240/76 , F16C2361/61 , F16H1/145 , F16H2048/423
摘要： Construction of a rotation support device for a pinion shaft is achieved that, together with being able to sufficiently maintain axial rigidity of a rolling bearing on the side opposite from the pinion gear side, it is able to sufficiently reduce the dynamic torque during operation and the starting torque at the start of operation. Together with using a single-row angular contact ball bearing 14a as the rolling bearing on the side opposite from the pinion gear side, the ratio of the radius of curvature Ro of the outer raceway 22a and the diameter Bd of the balls 25a (Ro/Bd) is regulated within the range 0.52

3. 发明授权

EP2503168B1 ROTATION SUPPORT DEVICE FOR PINION SHAFT 失效
公开(公告)号：EP2503168B1
公开(公告)日：2018-07-04
申请号：EP10831661.3
申请日：2010-11-19
申请人： NSK Ltd.
发明人： TANAKA, Takanori , SAITO, Tomoharu , TANOUE, Yasushi
IPC分类号： F16C19/16 , F16C19/18 , F16C19/50 , F16C19/54 , F16C19/56 , F16C41/02 , F16H1/14 , F16H48/42
CPC分类号： F16C19/163 , F16C19/182 , F16C19/505 , F16C19/548 , F16C19/56 , F16C41/02 , F16C2240/34 , F16C2240/46 , F16C2240/70 , F16C2240/76 , F16C2361/61 , F16H1/145 , F16H2048/423
摘要： Construction of a rotation support device for a pinion shaft is achieved that, together with being able to sufficiently maintain axial rigidity of a rolling bearing on the side opposite from the pinion gear side, it is able to sufficiently reduce the dynamic torque during operation and the starting torque at the start of operation. Together with using a single-row angular contact ball bearing 14a as the rolling bearing on the side opposite from the pinion gear side, the ratio of the radius of curvature Ro of the outer raceway 22a and the diameter Bd of the balls 25a (Ro/Bd) is regulated within the range 0.52

4. 发明公开

EP2458237A1 ROLLER BEARING AND PROCESS FOR PRODUCING SAME 审中-公开
标题翻译： KUGELLAGER UND HERSTELLUNGSVERFAHRENDAFÜR
公开(公告)号：EP2458237A1
公开(公告)日：2012-05-30
申请号：EP11747046.8
申请日：2011-02-23
申请人： NSK Ltd.
发明人： SAITO, Tomoharu , KOBAYASHI, Masato , TANOUE, Yasushi , IWAO, Takuya , FUJITA, Shinji
IPC分类号： F16C33/66 , F16C19/36 , F16C33/36 , F16C33/64
CPC分类号： F16C33/6651 , F16C19/364 , F16C33/366 , F16C33/585 , F16C2240/44 , F16C2240/54 , F16C2240/90 , F16C2326/06 , F16C2361/61
摘要： Spherical particles having diameters of 100 µm or less are projected on a surface of a tapered roller (3) so as to form recesses and protrusions, and abrasive particles are then projected thereon so as to remove the protrusions. The abrasive particles result from adhering 5 mass% diamond grains with an average diameter of 10 µm on surfaces of 1 mm-diameter rubber particles. As a result, multiple recesses having circular openings of 50 µm or less are formed on the surface of the tapered roller (3) at intervals of 200 µm or less. These recesses become moderate oil pools, heightening the oil film formation capability of the roller surface, and thus torque of the tapered roller bearing may be decreased.
摘要翻译：将直径为100μm以下的球状颗粒投影在圆锥滚子（3）的表面上，形成凹部和凸部，然后将研磨粒子突出，从而除去突起。研磨颗粒是通过在1mm直径的橡胶颗粒的表面上粘附平均直径为10μm的5质量％的金刚石颗粒。结果，在圆锥滚子（3）的表面上以200μm以下的间隔形成多个具有50μm以下的圆形开口的凹部。这些凹部变成适度的油池，提高辊表面的油膜形成能力，因此可以减小圆锥滚子轴承的扭矩。

5. 发明授权

EP2503169B1 TANDEM ANGULAR TYPE BALL BEARING 失效
公开(公告)号：EP2503169B1
公开(公告)日：2019-01-09
申请号：EP10807579.7
申请日：2010-11-19
申请人： NSK Ltd.
发明人： TANOUE, Yasushi , TANAKA, Takanori , MAEJIMA, Hiroki , HAYASHI, Yoshitaka , ABE, Kenichi , YUKAWA, Kinji , SAITO, Tomoharu
IPC分类号： F16C33/64 , F16C19/18 , F16C33/58 , F16C33/40 , F16C43/06

6. 发明公开

EP2503168A9 ROTATION SUPPORT DEVICE FOR PINION SHAFT 失效
标题翻译：旋转支承装置用于齿轮轴
公开(公告)号：EP2503168A9
公开(公告)日：2012-11-21
申请号：EP10831661.3
申请日：2010-11-19
申请人： NSK Ltd.
发明人： TANAKA, Takanori , SAITO, Tomoharu , TANOUE, Yasushi
IPC分类号： F16C33/58 , F16C19/16 , F16C19/18 , F16H48/06
CPC分类号： F16C19/163 , F16C19/182 , F16C19/505 , F16C19/548 , F16C19/56 , F16C41/02 , F16C2240/34 , F16C2240/46 , F16C2240/70 , F16C2240/76 , F16C2361/61 , F16H1/145 , F16H2048/423
摘要： Construction of a rotation support device for a pinion shaft is achieved that, together with being able to sufficiently maintain axial rigidity of a rolling bearing on the side opposite from the pinion gear side, it is able to sufficiently reduce the dynamic torque during operation and the starting torque at the start of operation. Together with using a single-row angular contact ball bearing 14a as the rolling bearing on the side opposite from the pinion gear side, the ratio of the radius of curvature Ro of the outer raceway 22a and the diameter Bd of the balls 25a (Ro/Bd) is regulated within the range 0.52

7. 发明授权

EP3372852B1 ROTATION SUPPORT DEVICE FOR PINION SHAFT 失效
公开(公告)号：EP3372852B1
公开(公告)日：2019-08-21
申请号：EP18168830.0
申请日：2010-11-19
申请人： NSK Ltd.
发明人： TANAKA, Takanori , SAITO, Tomoharu , TANOUE, Yasushi
IPC分类号： F16C19/16 , F16C19/18 , F16C19/50 , F16C19/54 , F16C19/56 , F16C41/02 , F16H1/14 , F16H48/42

8. 发明公开

EP2503169A1 TANDEM ANGULAR TYPE BALL BEARING 失效
标题翻译：串联SCHRÄGKUGELLAGER
公开(公告)号：EP2503169A1
公开(公告)日：2012-09-26
申请号：EP10807579.7
申请日：2010-11-19
申请人： NSK Ltd.
发明人： TANOUE, Yasushi , TANAKA, Takanori , MAEJIMA, Hiroki , HAYASHI, Yoshitaka , ABE, Kenichi , YUKAWA, Kinji , SAITO, Tomoharu
IPC分类号： F16C33/64 , F16C19/18 , F16C33/58
CPC分类号： F16C43/06 , F16C19/182 , F16C19/548 , F16C33/583 , F16C33/64 , F16C2240/34 , F16C2361/61
摘要： A tandem angular ball bearing is provide that prevent damage from occurring to the rolling surfaces of the balls during assembly and transport to an extent that would cause an excessive decrease in life of the balls, and that can maintain excelled durability without the occurrence of excessive vibration and noise during operation. In order to accomplish this, the entire portion of the inner peripheral surface of an outer ring (5b) from a small-diameter side outer ring raceway (11) to the continuous section (25a) that is continuous with the end surface (23) on the large inner diameter side of the outer ring (5b), and the entire portion of the outer peripheral surface of an inner ring (6b) from a large-diameter side inner ring raceway (12) to the continuous section (25g) that is continuous with the end surface (14) on the small outer-diameter side of the inner ring (6b) are polished smooth surfaces having no indifferentiable corner sections in the cross-section shape. Moreover, the outer ring (5c) comprises groove shoulder sections (16a, 16b, 17a, 17b) in at least one of the portion on one side in the axial direction of the large-diameter side outer ring raceway (10), and the portion on the one side in the axial direction of the small-diameter side outer ring raceway (11), and in the portion on the other side in the axial direction of the large-diameter side outer ring raceway (10) and in the portion on the other end in the axial direction of the small-diameter side outer ring raceway (11).
摘要翻译：提供一种串联角度球轴承，其防止在组装和运输期间滚珠表面发生的损坏，从而导致球的寿命过度降低的程度，并且可以保持优异的耐久性而不会发生过大的振动和噪音。为了实现这一点，外环（5b）的内周面从小直径侧外圈滚道（11）到与端面（23）连续的连续部（25a）的整个部分，在外圈（5b）的大内径侧和内圈（6b）的外周面从大径侧内圈滚道（12）到连续部（25g）的整个部分的全部，与内圈（6b）的小外径侧上的端面（14）连续的是具有横截面形状的没有不可分割角部的抛光光滑表面。此外，外环（5c）在大径侧外圈轨道（10）的轴向上的一侧的部分中的至少一个中包括槽肩部（16a，16b，17a，17b），并且在小直径侧外圈滚道（11）的轴向一侧的部分和大直径侧外圈滚道（10）的轴向另一侧的部分，另一端在小径侧外圈滚道（11）的轴向上。

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