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1. 发明公开

EP2189670A4 TAPERED ROLLER BEARING 有权
标题翻译： KEGELROLLENLAGER
公开(公告)号：EP2189670A4
公开(公告)日：2011-11-23
申请号：EP08831855
申请日：2008-09-01
申请人： NTN TOYO BEARING CO LTD
发明人： MATSUSHITA TOMOKI , KANBORI YASUHIRO , UENO TAKASHI
IPC分类号： F16C19/38 , F16C33/34 , F16C33/36 , F16C33/46 , F16C33/58 , F16H57/021 , F16H57/04
CPC分类号： F16H3/08 , F16C19/386 , F16C33/4635 , F16C33/4676 , F16C33/581 , F16C2240/00 , F16C2240/30 , F16C2240/34 , F16C2240/40 , F16C2240/84 , F16C2361/61 , F16H57/0031
摘要： A tapered roller bearing includes an outer ring 23, an inner ring 22, a tapered roller 24 interposed between the outer ring 23 and the inner ring 22, and a cage 25 holding the tapered roller 24. The tapered roller bearing is used in an idler portion of an automobile transmission that switches between an idle state in which the outer ring 23 rotates freely in relation to the inner ring 22 and a shift state in which the outer ring 23 rotates synchronously with the inner ring 22. The tapered roller bearing includes a fretting suppressing means configured by a ratio of dynamic load rating Cr to static load rating Cor being set to Cor/Cr‰¥1.4.
摘要翻译：圆锥滚子轴承包括外圈23，内圈22，介于外圈23和内圈22之间的圆锥滚子24以及保持圆锥滚子24的保持架25.圆锥滚子轴承用于惰轮在外圈23相对于内圈22自由旋转的空转状态和外圈23与内圈22同步旋转的变速状态之间切换的汽车变速器的一部分。圆锥滚子轴承包括微动抑制装置由动负荷Cr与静负荷Cor之比设定为Cor /Cr≥1.4。

2. 发明公开

EP2221493A4 TAPERED ROLLER BEARING 有权
标题翻译： KEGELROLLENLAGER
公开(公告)号：EP2221493A4
公开(公告)日：2012-01-11
申请号：EP08850203
申请日：2008-11-07
申请人： NTN TOYO BEARING CO LTD
发明人： KANBORI YASUHIRO , UENO TAKASHI
IPC分类号： F16C33/46 , B60B35/18 , F16C19/36 , F16C33/66
CPC分类号： B60B35/18 , F16C19/364 , F16C19/386 , F16C33/4605 , F16C33/4635 , F16C33/4676 , F16C2220/04 , F16C2240/30 , F16C2240/34 , F16C2240/40 , F16C2240/80 , F16C2240/84 , F16C2361/61
摘要： A tapered roller bearing of the type having a protrusion on the retainer that is axially brought into engagement with the flange of the inner race is provided, wherein no stress concentration occurs on the flange of the inner race, which guide the tapered rollers and which is small and has a large load bearing capacity. The inner race 2 has a flange 6 for guiding the tapered rollers 4 only at the large-diameter end of the raceway 2a. The retainer 5 has on the large-diameter side thereof a protrusion 7 radially inwardly extending and axially engaging the flange 6 of the inner race 2. The flange 6 of the inner race 2 is formed with a circumferentially continuous cutout groove 6a having a smoothly curved concave surface through which the radially outer surface and the outer end surface of the flange 6 are connected to each other, and the protrusion 7 of the retainer 5 has its inner side at its radially inner end portion in engagement with the cutout groove 6a, thereby making it possible to reduce the size of the tapered roller bearing and increasing its load bearing capacity, while preventing stress concentration on the flange 6 of the inner race 2 for guiding the tapered rollers 4.
摘要翻译：在保持器上具有与内圈的凸缘轴向接合的突起的类型的圆锥滚子轴承被提供，其中在引导圆锥滚子的内圈的凸缘上不产生应力集中，体积小，承载能力大。内圈2具有用于仅在滚道2a的大直径端处引导圆锥滚子4的凸缘6。保持器5在其大直径侧上具有径向向内延伸并且轴向接合内圈2的凸缘6的突起7.内圈2的凸缘6形成有周向连续的切口槽6a，其具有平滑弯曲该凸缘6的径向外侧面和外侧端面通过该凹面相互连接，保持器5的突起7的内侧的端部与切口槽6a卡合，能够抑制圆锥滚子轴承的大小并提高其承载能力，同时防止用于引导圆锥滚子4的内圈2的凸缘6上的应力集中。

3. 发明公开

EP2157326A4 TAPERED ROLLER BEARING 有权
标题翻译： KEGELROLLENLAGER
公开(公告)号：EP2157326A4
公开(公告)日：2011-11-16
申请号：EP08776971
申请日：2008-05-29
申请人： NTN TOYO BEARING CO LTD
发明人： TSUJIMOTO TAKASHI , KANBORI YASUHIRO
IPC分类号： F16C19/38 , F16C33/46 , F16C33/56 , F16C33/66 , F16H57/021
CPC分类号： F16D23/06 , F16C19/386 , F16C33/4635 , F16C33/6696 , F16C2240/40 , F16C2240/84 , F16C2361/43 , F16C2361/61 , F16D15/00 , F16D41/061 , F16D2300/10
摘要： Provided is a tapered roller bearing capable of suppressing occurrence of fretting without shortening fatigue life thereof. The tapered roller bearing includes an outer race (23), an inner race (22), a plurality of taper rollers (24) interposed between the outer race (23) and the inner race (22), and a retainer (25) for retaining the tapered rollers (24). The tapered roller bearing is used in an idler portion of an automobile transmission, which is interchanged between an idle state in which the outer race (23) idles with respect to the inner race and a shift state in which the outer race (23) and the inner race (22) are rotated synchronously with each other. ±/²‰¥4.9 is established on a premise that an outer-race raceway surface angle is 2± and a roller angle is ².
摘要翻译：本发明提供一种不会缩短疲劳寿命而能够抑制摩擦的发生的圆锥滚子轴承。所述圆锥滚子轴承包括外座圈（23），内座圈（22），介于所述外座圈（23）和所述内座圈（22）之间的多个圆锥滚子（24），以及保持器保持圆锥滚子（24）。圆锥滚子轴承用于汽车变速器的空转部分，该空转部分在外圈（23）相对于内圈空转的空转状态和外圈（23）和内圈（22）彼此同步旋转。在外圈滚道面角度为2±，滚子角度为2的前提下，设定±4.9 /‰。

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