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1. 发明授权

EP2447557B1 RETAINER MADE OF SYNTHETIC RESIN FOR USE IN A DEEP GROOVE BALL BEARING; DEEP GROOVE BALL BEARING; AND GEAR SUPPORT DEVICE 有权
公开(公告)号：EP2447557B1
公开(公告)日：2018-10-10
申请号：EP10792025.8
申请日：2010-06-18
申请人： NTN Corporation
发明人： UENO, Takashi
IPC分类号： F16C33/58 , F16C19/16 , F16C19/36 , F16C33/32 , F16C33/41 , F16C33/44 , F16H48/08 , F16C19/06 , F16C33/38
CPC分类号： F16C19/163 , F16C19/06 , F16C33/3875 , F16C33/3887 , F16C33/58 , F16C33/585 , F16C33/6681 , F16C2208/52 , F16C2208/60 , F16C2226/74 , F16C2240/40 , F16C2240/70 , F16C2361/61 , F16H2048/405 , Y10T74/19953
摘要： A retainer made of a synthetic resin for use in a deep groove ball bearing is proposed of which the lubricity has been improved. The retainer includes a cylindrical first split retainer member (41) having a first axial side, and a cylindrical second split retainer member (42) having a second axial side coupled to the first axial side of the first split retainer member (41). Circumferentially spaced apart first and second cutouts (45 and 50) are formed in the first axial side of the first split retainer member (41) and the second axial side of the second split retainer member (42), respectively, which define respective pockets for receiving balls with the split retainers (41 and 42) coupled together. A coupling arrangement (X) is provided between the first and second split retainer members (41 and 42) which is adapted to engage the split retainer members (41 and 42) when the split retainer members (41 and 42) are coupled together, thereby keeping the split retainer members (41 and 42) axially inseparable from each other. With the retainer mounted in a deep groove ball bearing, when the outer race (11) and the inner race (21) rotate relative to each other, since the first and second split retainer members (41 and 42) rotate at different peripheral speeds due to a difference in diameter therebetween, pumping action is produced in the bearing, which causes a forced flow of lubricating oil in the bearing.

2. 发明公开

EP2789704A1 BEARING COMPONENTS, ROLLING BEARING, AND METHODS FOR PRODUCING SAME 审中-公开
标题翻译： LAGERTEILE，WÄLZLAGERUND VERFAHREN ZU IHRER HERSTELLUNG
公开(公告)号：EP2789704A1
公开(公告)日：2014-10-15
申请号：EP12855776.6
申请日：2012-12-07
申请人： NTN Corporation
发明人： UENO, Takashi , OHKI, Chikara , SATO, Daisuke , KAGEYAMA, Kyouhei , SHIMIZU, Shougo
IPC分类号： C21D9/40 , C21D1/06 , C22C38/00 , C22C38/18 , F16C33/32 , F16C33/38 , F16C33/44 , F16C33/64 , F16C33/78
CPC分类号： C21D9/36 , C21D1/06 , C21D1/18 , C21D9/40 , C21D2211/001 , C21D2211/008 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/18 , C23C8/32 , C23C8/80 , F16C19/06 , F16C19/30 , F16C33/32 , F16C33/3875 , F16C33/3887 , F16C33/427 , F16C33/585 , F16C33/62 , F16C33/64 , F16C33/7823 , F16C33/7843 , F16C33/7893 , F16C33/805 , F16C43/04 , F16C43/065 , F16C2202/04 , F16C2204/66 , F16C2208/36 , F16C2208/52 , F16C2208/60 , F16C2220/04 , F16C2223/16 , F16C2226/74 , F16C2240/06 , F16C2240/40 , F16C2240/94 , F16C2361/65
摘要： An outer ring (11), an inner ring (12), and a ball (13), each of which is a bearing part, are made of a quench-hardened steel containing not less than 0.90 mass % and not more than 1.05 mass % of carbon, not less than 0.15 mass % and not more than 0.35 mass % of silicon, not less than 0.01 mass % and not more than 0.50 mass % of manganese, and not less than 1.30 mass % and not more than 1.65 mass % of chromium with the rest consisting of an impurity. A contact surface (11A, 12A, 13A) thereof with another part has a nitrogen concentration of not less than 0.25 mass %. A remaining austenite amount in the contact surface is not less than 6 volume % and not more than 12 volume %.
摘要翻译：每个都是轴承部分的外圈（11），内圈（12）和球（13）由淬火硬化钢制成，其含有不小于0.90质量％且不大于1.05质量％不小于0.15质量％且不超过0.35质量％的碳，不小于0.01质量％且不大于0.50质量％的锰，并且不小于1.30质量％且不大于1.65质量％的铬，其余由杂质构成。其另一部分的接触表面（11A，12A，13A）的氮浓度不小于0.25质量％。接触表面中的剩余奥氏体量不小于6体积％且不大于12体积％。

3. 发明授权

EP2189670B1 TAPERED ROLLER BEARING 有权
标题翻译：轴承
公开(公告)号：EP2189670B1
公开(公告)日：2012-12-26
申请号：EP08831855.5
申请日：2008-09-01
申请人： NTN Corporation
发明人： MATSUSHITA, Tomoki , KANBORI, Yasuhiro , UENO, Takashi
IPC分类号： F16C33/46 , F16C33/58 , F16C19/38 , F16H57/02
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.

4. 发明授权

EP2789705B1 MACHINE PART, ROLLING BEARING, CONICAL ROLLER BEARING AND METHOD FOR MANUFACTURING MACHINE PART 有权
公开(公告)号：EP2789705B1
公开(公告)日：2018-10-10
申请号：EP12856064.6
申请日：2012-12-04
申请人： NTN Corporation
发明人： SATO, Daisuke , OHKI, Chikara , UENO, Takashi , KUSUMI, Yasutaka
IPC分类号： C21D9/40 , C21D1/06 , C22C38/00 , C22C38/18 , C22C38/44 , F16C19/36 , F16C33/32 , F16C33/34 , F16C33/58 , F16C33/62 , F16C33/64 , F16C33/66 , F16C19/38 , F16C19/54
CPC分类号： C23C8/32 , C21D9/40 , C21D2211/001 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/18 , C23C8/26 , C23C8/80 , F16C19/06 , F16C19/364 , F16C33/32 , F16C33/34 , F16C33/366 , F16C33/585 , F16C33/62 , F16C33/64 , F16C2204/66 , F16C2240/50 , F16C2240/54 , F16C2240/90 , F16C2361/61
摘要： An outer ring (11), an inner ring (12) and a ball (13) serving as machine parts are each constituted of steel containing at least 0.60 mass % and not more than 1.50 mass % of carbon, at least 0.15 mass % and not more than 2.50 mass % of silicon, at least 0.30 mass % and not more than 1.50 mass % of manganese, and at least 0.20 mass % and not more than 2.00 mass % of chromium with the rest consisting of an impurity. A nitrogen concentration in surface layer portions (11B, 12B, 13B) under an outer ring rolling contact surface (11A), an inner ring rolling contact surface (12A) and a ball rolling surface (13A), each serving as a contact surface to be in contact with another part, is at least 0.3 mass %. An average quantity of residual austenite as a whole in each of the outer ring (11), the inner ring (12) and the ball (13) is not more than 20 volume %.

5. 发明公开

EP2189670A1 TAPERED ROLLER BEARING 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP2189670A1
公开(公告)日：2010-05-26
申请号：EP08831855.5
申请日：2008-09-01
申请人： NTN Corporation
发明人： MATSUSHITA, Tomoki , KANBORI, Yasuhiro , UENO, Takashi
IPC分类号： F16C19/38 , F16C33/34 , F16C33/58 , F16H57/02
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。圆锥滚子轴承包括将动载荷Cr与静载Cor之比Cor设定为Cor /Cr≥1.4的微动抑制装置。

6. 发明公开

EP2182231A1 TAPERED ROLLER BEARING 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP2182231A1
公开(公告)日：2010-05-05
申请号：EP08791905.6
申请日：2008-07-30
申请人： NTN Corporation
发明人： UENO, Takashi
IPC分类号： F16C33/54 , F16C19/36 , F16C33/56 , F16C33/58
CPC分类号： F16C33/4605 , F16C19/364 , F16C33/4635 , F16C33/543 , F16C33/583
摘要： Provided is a tapered roller bearing in which strength of a flange portion for receiving larger end surfaces of tapered rollers is ensured and the tapered rollers have a longer axial length so as to increase load rating. The tapered roller bearing includes: an inner race (51); an outer race (52); a plurality of tapered rollers (53) arranged so as to be rollable between the inner race (51) and the outer race (52); a retainer (54) for retaining the tapered rollers (53) at predetermined circumferential intervals; and a flange portion (56) provided only on a larger diameter side of a radially outer surface of the inner race (51), for guiding the tapered rollers (53). The retainer (54) includes: a larger-diameter-side annular portion (54a); a smaller-diameter-side annular portion (54b); and brace portions (54c) for coupling the larger-diameter-side annular portion (54a) and the smaller-diameter-side annular portion (54b) with each other. The larger-diameter-side annular portion (54a) is provided with hook portion (65) protruding to a radially inner side so as to be kept out of contact with the flange portion (56) of the inner race (51) during operation and brought into contact therewith only at a radially inner surface of the hook portion and a radially outer surface of a cutout portion of the flange portion during operation, and brought into contact therewith during non-operation. A maximum height dimension of the flange portion (56) of the inner race (51) is set to be equal to or more than 30% of a diameter of a larger end surface of each of the tapered rollers (53).
摘要翻译：提供一种圆锥滚子轴承，其中确保用于接收圆锥滚子的较大端面的凸缘部分的强度，并且圆锥滚子具有较长的轴向长度以增加额定载荷。该圆锥滚子轴承包括：内圈（51）; 外圈（52）; 多个圆锥滚子（53），其配置成能够在内圈（51）和外圈（52）之间滚动; 保持器（54），用于以预定的周向间隔保持所述圆锥滚子（53）; 以及仅设置在内圈（51）的径向外表面的较大直径侧上用于引导圆锥滚子（53）的凸缘部分（56）。保持器54包括：大径侧环状部54a; 小径侧环状部54b; 以及用于将较大直径侧环形部分（54a）和较小直径侧环形部分（54b）彼此连接的支柱部分（54c）。在大径侧环状部54a上设有向径向内侧突出的钩部65，该钩部65在工作时不与内圈51的凸缘部56接触，在操作期间仅在钩部的径向内表面和凸缘部的切口部的径向外表面与其接触，并且在非操作期间与其接触。内圈（51）的凸缘部（56）的最大高度尺寸被设定为各圆锥滚子（53）的较大端面的直径的30％以上。

7. 发明公开

EP2175151A1 TAPER ROLLER BEARING 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP2175151A1
公开(公告)日：2010-04-14
申请号：EP08765016.4
申请日：2008-06-03
申请人： NTN Corporation
发明人： UENO, Takashi
IPC分类号： F16C33/46 , F16C19/34 , F16C33/58
CPC分类号： F16C19/386 , F16C19/225 , F16C33/4605 , F16C33/4635 , F16C33/543 , F16C2240/84
摘要： Provided is a taper roller bearing which is excellent in incorporating properties and has longer axial length of the rollers so as to increase load rating. The taper roller bearing includes an inner race (51), an outer race (52), taper rollers (53) arranged so as to be rollable between the inner and outer races, and a retainer (54) for retaining the taper rollers (53), in which a flange portion (56) is provided only on the radially larger side of the inner race (51). The retainer (54) includes a radially-larger-side annular portion (61), a radially-smaller-side annular portion (62), and brace portions (63) for coupling the annular portions. The radially-larger-side annular portion (61) includes a hook portion (65). The hook portion (65) effects hooking so that the flange portion (56) of the inner race (51) is maintained in an assembled state. In a neutral state, the hook portion is kept out of contact with the flange portion (56). During operation of the bearing, the hook portion is kept out of contact with the flange portion (56), or, when the hook portion is brought into contact with the flange portion (56), an inner surface (65a) of the hook portion and a bottom surface (66a) of a cutout portion (66) of the flange portion (56) are brought into contact with each other. A guide surface portion (71) for guiding the inner race (51) to be incorporated is provided on a radially inner end portion of an outer surface (70) of the hook portion (65).
摘要翻译：本发明提供一种圆锥滚子轴承，其具有优良的结合特性并且具有较长的滚子轴向长度以增加额定载荷。该圆锥滚子轴承包括内圈51，外圈52，配置成能够在内外圈之间滚动的锥形滚子53和用于保持锥形滚子53的保持件54。），其中凸缘部分（56）仅设置在内圈（51）的径向较大侧上。保持器54包括径向较大侧环形部分61，径向较小侧环形部分62和用于联接环形部分的支柱部分63。径向较大侧环形部分（61）包括钩部分（65）。钩部（65）实现钩住，从而内圈（51）的凸缘部分（56）保持在组装状态。在中立状态下，钩部不与凸缘部56接触。在轴承的操作过程中，钩部不与凸缘部56接触，或者当钩部与凸缘部56接触时，钩部的内表面（65a）与凸缘部（56）的切口部（66）的底面（66a）接触。在钩部（65）的外表面（70）的径向内端部设置有用于引导内圈（51）结合的引导表面部分（71）。

8. 发明公开

EP3009698A1 TAPERED ROLLER BEARING 审中-公开
标题翻译：圆锥滚子轴承
公开(公告)号：EP3009698A1
公开(公告)日：2016-04-20
申请号：EP14810885.5
申请日：2014-06-05
申请人： NTN Corporation
发明人： UENO, Takashi
IPC分类号： F16C33/62 , C22C38/00 , C22C38/34 , C22C38/44 , F16C19/34 , F16C33/48
CPC分类号： F16C33/62 , C21D9/36 , C21D9/40 , C22C38/00 , C22C38/001 , C22C38/002 , C22C38/02 , C22C38/04 , C22C38/12 , C22C38/18 , C22C38/34 , C22C38/40 , C22C38/44 , C23C8/32 , F16C19/364 , F16C19/542 , F16C19/547 , F16C33/56 , F16C2204/64 , F16C2204/66 , F16C2204/74
摘要： A tapered roller bearing (1A) includes an outer ring (11), an inner ring (12), a plurality of tapered rollers (13), and a holder (20). The outer ring (11), the inner ring (12) and the tapered roller (13) each are made of steel containing 0.6 mass% or more and 1.50 mass% or less of carbon, 0.15 mass% or more and 2.50 mass% or less of silicon, 0.30 mass% or more and 1.50 mass% or less of manganese, and 0.20 mass% or more and 2.00 mass% or less of chromium, with the rest made up of impurities. A nitrogen concentration in a surface layer portion under a contact surface is 0.3 mass% or more. The holder (20) includes a small annular portion, a large annular portion, and a plurality of column portions. A pocket has a trapezoidal shape in which a portion housing a small diameter side of the tapered roller (13) is located on a reduced width side while a portion housing a large diameter side of the tapered roller (13) is located on an increased width side. Each of the column portions on the reduced width side of the pocket is provided with a cutout.
摘要翻译：圆锥滚子轴承（1A）包括外圈（11），内圈（12），多个圆锥滚子（13）和保持架（20）。外圈（11），内圈（12）和圆锥滚子（13）分别由含有0.6质量％以上且1.50质量％以下的碳，0.15质量％以上且2.50质量％以下的钢少量的硅，0.30质量％以上且1.50质量％以下的锰，以及0.20质量％以上且2.00质量％以下的铬，剩余部分由杂质构成。接触面下的表层部的氮浓度为0.3质量％以上。保持器（20）包括小环形部分，大环形部分和多个柱形部分。容纳锥形辊（13）的小直径侧的部分位于宽度减小侧，而容纳锥形辊（13）的大直径侧的部分位于增加的宽度位置侧。在口袋的宽度减小侧上的每个柱部分设置有切口。

9. 发明公开

EP2789705A1 MACHINE PART, ROLLING BEARING, CONICAL ROLLER BEARING AND METHOD FOR MANUFACTURING MACHINE PART 审中-公开
标题翻译： MASCHINENTEIL，WÄLZLAGER，KEGELROLLENLAGER UND VERFAHREN ZUR HERSTELLUNG EINES MASCHINENTEILS
公开(公告)号：EP2789705A1
公开(公告)日：2014-10-15
申请号：EP12856064.6
申请日：2012-12-04
申请人： NTN Corporation
发明人： SATO, Daisuke , OHKI, Chikara , UENO, Takashi , KUSUMI, Yasutaka
IPC分类号： C21D9/40 , C21D1/06 , C22C38/00 , C22C38/18 , C22C38/44 , F16C19/36 , F16C33/32 , F16C33/34 , F16C33/58 , F16C33/62 , F16C33/64 , F16C33/66
CPC分类号： C23C8/32 , C21D9/40 , C21D2211/001 , C22C38/00 , C22C38/02 , C22C38/04 , C22C38/18 , C23C8/26 , C23C8/80 , F16C19/06 , F16C19/364 , F16C33/32 , F16C33/34 , F16C33/366 , F16C33/585 , F16C33/62 , F16C33/64 , F16C2204/66 , F16C2240/50 , F16C2240/54 , F16C2240/90 , F16C2361/61
摘要： An outer ring (11), an inner ring (12) and a ball (13) serving as machine parts are each constituted of steel containing at least 0.60 mass % and not more than 1.50 mass % of carbon, at least 0.15 mass % and not more than 2.50 mass % of silicon, at least 0.30 mass % and not more than 1.50 mass % of manganese, and at least 0.20 mass % and not more than 2.00 mass % of chromium with the rest consisting of an impurity. A nitrogen concentration in surface layer portions (11B, 12B, 13B) under an outer ring rolling contact surface (11A), an inner ring rolling contact surface (12A) and a ball rolling surface (13A), each serving as a contact surface to be in contact with another part, is at least 0.3 mass %. An average quantity of residual austenite as a whole in each of the outer ring (11), the inner ring (12) and the ball (13) is not more than 20 volume %.
摘要翻译：作为机械部件的外圈（11），内圈（12）和球（13）各自由含有至少0.60质量％且不多于1.50质量％的碳，至少0.15质量％的钢和不超过2.50质量％的硅，至少0.30质量％且不大于1.50质量％的锰，以及至少0.20质量％且不超过2.00质量％的铬，其余由杂质构成。外环滚动面（11A），内圈滚动面（12A）和滚珠滚动面（13A）的表层部（11B，12B，13B）中的氮浓度分别为与另一部分接触，为至少0.3质量％。每个外圈（11），内圈（12）和球（13）中的残余奥氏体的整体平均量不大于20体积％。

10. 发明授权

EP2175151B1 TAPER ROLLER BEARING 有权
标题翻译：圆锥滚子轴承
公开(公告)号：EP2175151B1
公开(公告)日：2013-05-08
申请号：EP08765016.4
申请日：2008-06-03
申请人： NTN Corporation
发明人： UENO, Takashi
IPC分类号： F16C33/46 , F16C19/38
CPC分类号： F16C19/386 , F16C19/225 , F16C33/4605 , F16C33/4635 , F16C33/543 , F16C2240/84

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