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1. 发明公开

EP1348879A1 Two row tapered roller bearing with oil supply through a spacer of a split inner ring 有权
标题翻译： Zweireihiges Kegelrollenlager mitÖlzufuhrdurch einen Distanzring eines geteilten Innenrings
公开(公告)号：EP1348879A1
公开(公告)日：2003-10-01
申请号：EP03005736.8
申请日：2003-03-13
申请人： ISUZU MOTORS LIMITED , NTN CORPORATION
发明人： Taki, Masafumi, Isuzu Motors Limited , Tsujimoto, Takashi , Ito, Takashi
IPC分类号： F16C33/66 , F16C19/38
CPC分类号： F16C33/60 , F16C19/386 , F16C33/6677 , F16C33/6681 , F16C2361/61 , F16H3/0915 , F16H57/04
摘要： Fretting wear at the locations of contact between rolling elements and an inner ring is prevented even in the case where the outer ring and the inner ring of a roller bearing are rotating in synchronization. In a roller bearing (9) oil feed device in which a plurality of rolling elements (23) are arranged in a plurality of rows in the axial direction between this outer ring (21) and inner ring (22), the inner ring being divided for each row of the rolling elements (23) and a ring-shaped spacer (40) being interposed at the position of this division, the inner rings (22) and spacer (40) being fitted onto a rotary shaft (3), a circumferential groove (31) is provided in the inner peripheral section of the spacer (40) and oil feed holes (30) communicating with the circumferential groove (31) are provided in the rotary shaft (3) and an oil feed passage (47) having an inlet (48) opening into the circumferential groove (31) and an outlet (51) opening to a corner on at least one side in the axial direction of the spacer (40) is provided in the spacer (40). Since the outlet (51) of the oil feed passage (47) opens in a position which is immediately next to the locations of contact of the rolling elements (23) and inner ring (22) of each row, an ample amount of oil is distributed to these locations of contact and fretting wear can thus be prevented.
摘要翻译：即使在滚子轴承的外圈和内圈同步旋转的情况下也能够防止滚动体与内圈之间的接触位置的微动磨损。在滚动轴承（9）中，多个滚动体（23）在该外圈（21）与内圈（22）之间沿轴向排列成多列的供油装置，内圈分割对于每一排滚动元件（23）和在该分割位置插入的环形间隔件（40），内环（22）和间隔件（40）装配在旋转轴（3）上，在所述间隔件40的内周部设有周向槽31，在所述旋转轴3和所述供油路47设置与所述周向槽31连通的供油孔30，具有通向所述周向槽（31）的入口（48）和在所述间隔件（40）中设置在所述间隔件（40）的轴向方向上至少一侧的角部开口的出口（51）。由于供油通路47的出口51处于立即紧邻各列的滚动体23和内圈22的位置的位置，所以大量的油为因此可以防止分布在这些位置的接触和微动磨损。

2. 发明授权

EP1348879B1 Two row tapered roller bearing with oil supply through a spacer of a split inner ring 有权
标题翻译：与供油双列圆锥滚子轴承通过一个剖分内圈的间隔环
公开(公告)号：EP1348879B1
公开(公告)日：2013-08-07
申请号：EP03005736.8
申请日：2003-03-13
申请人： Isuzu Motors Limited , NTN Corporation
发明人： Taki, Masafumi, Isuzu Motors Limited , Tsujimoto, Takashi , Ito, Takashi
IPC分类号： F16C19/38 , F16C33/60 , F16C33/66 , F16H57/04
CPC分类号： F16C33/60 , F16C19/386 , F16C33/6677 , F16C33/6681 , F16C2361/61 , F16H3/0915 , F16H57/04

3. 发明授权

EP1614917B1 Tapered roller bearing 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP1614917B1
公开(公告)日：2012-06-27
申请号：EP05253332.0
申请日：2005-05-31
申请人： NTN Corporation
发明人： Tsujimoto, Takashi
IPC分类号： F16C33/62
CPC分类号： F16C19/364 , F16C33/4635 , F16C33/467 , F16C33/62 , F16C2240/40 , F16C2240/84 , F16C2361/61
摘要： A tapered roller bearing (1) comprises an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings, and a cage (5) for holding the tapered rollers at predetermined circumferential intervals. In this tapered roller bearing (1), the roller coefficient {³= (the number ofrollers x mean roller diameter) / {À x PCD) } is greater than 0.94. At least one of the members, i.e., the outer ring, inner ring, and rolling elements, has a nitrogen rich layer. The grain size number of austenite crystal grains in the nitrogen rich layer exceeds number 10.

4. 发明公开

EP1614917A3 Tapered roller bearing 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP1614917A3
公开(公告)日：2010-12-22
申请号：EP05253332.0
申请日：2005-05-31
申请人： NTN Corporation
发明人： Tsujimoto, Takashi
IPC分类号： F16C33/62
CPC分类号： F16C19/364 , F16C33/4635 , F16C33/467 , F16C33/62 , F16C2240/40 , F16C2240/84 , F16C2361/61
摘要： A tapered roller bearing (1) comprises an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings, and a cage (5) for holding the tapered rollers at predetermined circumferential intervals. In this tapered roller bearing (1), the roller coefficient {γ= (the number ofrollers x mean roller diameter) / {π x PCD) } is greater than 0.94. At least one of the members, i.e., the outer ring, inner ring, and rolling elements, has a nitrogen rich layer. The grain size number of austenite crystal grains in the nitrogen rich layer exceeds number 10.
摘要翻译：一种圆锥滚子轴承（1），包括内圈（2），外圈（3），可滚动地设置在内圈和外圈之间的多个圆锥滚子（4），以及用于保持圆锥滚子以预定的周向间隔。在该圆锥滚子轴承（1）中，滚子系数{γ=（滚子数×平均滚子直径）/ {π×PCD）}大于0.94。至少一个构件，即外圈，内圈和滚动元件具有富氮层。富氮层中奥氏体晶粒的粒度数超过10。

5. 发明公开

EP1746298A1 TAPERED ROLLER BEARING 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP1746298A1
公开(公告)日：2007-01-24
申请号：EP05730490.9
申请日：2005-04-18
申请人： NTN CORPORATION
发明人： Tsujimoto, Takashi
IPC分类号： F16C33/46 , F16C19/36 , F16C33/56 , F16C33/58
CPC分类号： F16C33/6681 , F16C19/364 , F16C33/4605 , F16C33/4635 , F16C2240/30 , F16C2240/34 , F16C2240/82 , F16C2240/84 , F16C2361/61 , F16H2048/423
摘要： A tapered roller bearing (1) used in transmissions or differentials for automobiles includes an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings (2 and 3), and a cage (5) for holding the tapered rollers (4) at circumferential predetermined intervals, wherein the roller coefficient γ exceeds 0.94, where γ is (the number of rollers x mean roller diameter) / (π x PCD).
摘要翻译：一种用于汽车变速器或差速器的圆锥滚子轴承（1）包括内圈（2），外圈（3），可滚动地设置在内圈和外圈（2和3）之间的多个圆锥滚子（4）以及用于以圆周预定间隔保持圆锥滚子（4）的保持架（5），其中，滚子系数γ超过0.94，其中γ是（滚子数×平均滚子直径）/（π×PCD）。

6. 发明公开

EP1614917A2 Tapered roller bearing 有权
标题翻译： Kegelrollenlager
公开(公告)号：EP1614917A2
公开(公告)日：2006-01-11
申请号：EP05253332.0
申请日：2005-05-31
申请人： NTN CORPORATION
发明人： Tsujimoto, Takashi
IPC分类号： F16C33/62
CPC分类号： F16C19/364 , F16C33/4635 , F16C33/467 , F16C33/62 , F16C2240/40 , F16C2240/84 , F16C2361/61
摘要： A tapered roller bearing (1) comprises an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings, and a cage (5) for holding the tapered rollers at predetermined circumferential intervals. In this tapered roller bearing (1), the roller coefficient {γ= (the number ofrollers x mean roller diameter) / {π x PCD) } is greater than 0.94. At least one of the members, i.e., the outer ring, inner ring, and rolling elements, has a nitrogen rich layer. The grain size number of austenite crystal grains in the nitrogen rich layer exceeds number 10.
摘要翻译：圆锥滚子轴承（1）包括内圈（2），外圈（3），可滚动地设置在内圈和外圈之间的多个圆锥滚子（4）和用于保持圆锥滚子以预定的周向间隔。在这种圆锥滚子轴承（1）中，滚子系数{3 =（滚子数x平均辊直径）/ { - x PCD}}大于0.94。构件，即外圈，内圈和滚动元件中的至少一个具有富氮层。富氮层中奥氏体晶粒的晶粒数超过10。

7. 发明公开

EP1632684A3 Tapered roller bearings 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP1632684A3
公开(公告)日：2009-08-26
申请号：EP05255324.5
申请日：2005-08-31
申请人： NTN Corporation
发明人： Tsujimoto, Takashi
IPC分类号： F16C19/36 , F16C33/36 , F16C33/46 , F16C33/56
CPC分类号： F16C33/4676 , F16C19/364 , F16C33/366 , F16C33/4635 , F16C33/543 , F16C2240/40 , F16C2240/84 , F16C2361/61
摘要： A tapered roller bearing (1) comprises an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings (2) and (3), and a cage (5) for holding the tapered rollers (4) in predetermined circumferentially spaced relation, wherein the roller coefficient exceeds 0.94, and with the cage (4) positioned at the axial center, there is a clearance between the cage and the raceway surface of the outer ring, and the roller abutting width of the pocket pole surface is secured across 10% or more of the pocket length axially from the central position of the pocket.
摘要翻译：圆锥滚子轴承（1）包括内圈（2），外圈（3），可滚动地设置在内圈和外圈（2）和（3）之间的多个圆锥滚子（4） 5），用于以预定的周向间隔关系保持圆锥滚子（4），其中滚子系数超过0.94，并且在保持架（4）位于轴向中心的情况下，保持架和外部滚道表面之间存在间隙并且从口袋的中心位置沿轴向跨过口袋长度的10％或更多来确保口袋磁极表面的辊抵接宽度。

8. 发明公开

EP1647727A2 Tapered roller bearing 审中-公开
标题翻译： Kegelrollenlager
公开(公告)号：EP1647727A2
公开(公告)日：2006-04-19
申请号：EP05256397.0
申请日：2005-10-14
申请人： NTN CORPORATION
发明人： Okamoto, Yuuji , Tsujimoto, Takashi , Mochizuki, Jiro , Kanbori, Yasuhiro
IPC分类号： F16C19/36 , F16C33/36 , F16C33/62
CPC分类号： F16C19/364 , F16C19/225 , F16C33/366 , F16C33/62 , F16C2240/50 , F16C2240/70 , F16C2361/61
摘要： A tapered roller bearing comprises an inner ring (10) having a conical surface-like raceway surface (12) in it outer periphery and formed with a cone back face rib (16) and a cone front face rib (14) on the opposite sides of the raceway, an outer ring (20) having a conical surface-like raceway (22) in its inner periphery, a plurality of tapered rollers (30) interposed between the raceways of the inner and outer rings, and a cage (40) for holding the tapered rollers in predetermined circumferential intervals, wherein the ratio R/R BASE of the radius of curvature R of the large end face (32) of the tapered roller (30) to the distance R BASE from the apex of cone of the tapered roller (30) to the cone back face rib surface (18) of the inner ring (10) is set at 0.75 to 0.87, and the end face deflection of the large end face (32) of the tapered roller (30) is 3 µm or less.
摘要翻译：圆锥滚子轴承包括在其外周具有锥形表面状的滚道表面（12）的内环（10），并在其相对的两侧形成有锥形背面肋（16）和锥形前面肋（14）在所述滚道的内周具有锥形表面滚道（22）的外圈（20），设置在所述内圈和外圈的滚道之间的多个圆锥滚子（30），以及保持架（40）用于以预定的周向间隔保持所述圆锥滚子，其中所述圆锥滚子（30）的大端面（32）的曲率半径R与所述圆锥滚子（30）的顶点的距离R BASE的比R / R BASE 将内圆环（10）的锥形背面肋面（18）的圆锥滚子（30）设定为0.75〜0.87，圆锥滚子（30）的大端面（32）的端面偏转为 3μm以下。

9. 发明授权

EP1746298B1 TAPERED ROLLER BEARING 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP1746298B1
公开(公告)日：2012-09-12
申请号：EP05730490.9
申请日：2005-04-18
申请人： NTN Corporation
发明人： Tsujimoto, Takashi
IPC分类号： F16C33/46 , F16C19/36 , F16C33/58
CPC分类号： F16C33/6681 , F16C19/364 , F16C33/4605 , F16C33/4635 , F16C2240/30 , F16C2240/34 , F16C2240/82 , F16C2240/84 , F16C2361/61 , F16H2048/423
摘要： A tapered roller bearing (1) used in transmissions or differentials for automobiles includes an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings (2 and 3), and a cage (5) for holding the tapered rollers (4) at circumferential predetermined intervals, wherein the roller coefficient ³ exceeds 0.94, where ³ is (the number of rollers x mean roller diameter) / (À x PCD).
摘要翻译：一种用于汽车变速器或差速器的圆锥滚子轴承（1）包括内圈（2），外圈（3），可滚动地设置在内圈和外圈（2和3）之间的多个圆锥滚子（4），以及一个用于以圆周预定间隔固定圆锥滚子（4）的笼子（5），其中滚子系数³超过0.94，其中³是（滚子数目x平均滚子直径）/（ - ×PCD）。

10. 发明授权

EP1632684B1 Tapered roller bearings 有权
公开(公告)号：EP1632684B1
公开(公告)日：2010-09-29
申请号：EP05255324.5
申请日：2005-08-31
申请人： NTN Corporation
发明人： Tsujimoto, Takashi
IPC分类号： F16C19/36 , F16C33/36 , F16C33/46 , F16C33/56
CPC分类号： F16C33/4676 , F16C19/364 , F16C33/366 , F16C33/4635 , F16C33/543 , F16C2240/40 , F16C2240/84 , F16C2361/61
摘要： A tapered roller bearing (1) comprises an inner ring (2), an outer ring (3), a plurality of tapered rollers (4) rollably disposed between the inner and outer rings (2) and (3), and a cage (5) for holding the tapered rollers (4) in predetermined circumferentially spaced relation, wherein the roller coefficient exceeds 0.94, and with the cage (4) positioned at the axial center, there is a clearance between the cage and the raceway surface of the outer ring, and the roller abutting width of the pocket pole surface is secured across 10% or more of the pocket length axially from the central position of the pocket.

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