公开(公告)号：EP1496132A4

公开(公告)日：2009-09-16

申请号：EP03746440

申请日：2003-04-09

申请人： JFE STEEL CORP ,  JTEKT CORP

发明人： MATSUZAKI A ,  IWAMOTO TAKASHI ,  GOTO MASAO ,  KIZAWA KATSUHIKO

IPC分类号： C21D1/06 ,  C22C38/00 ,  C21C1/06 ,  C21D1/18 ,  C21D9/40 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/22 ,  C22C38/38

CPC分类号： C22C38/02 ,  C21D1/06 ,  C21D9/40 ,  C22C38/002 ,  C22C38/04 ,  C22C38/22 ,  C23C8/22 ,  Y10S148/906

摘要： A case hardening bearing steel having an excellent rolling contact fatigue life in intermediate temperature, in addition, excellent toughness at room temperature is provided. Specific means for solving the problems are as follows. The composition contains, by mass percent, C of 0.15 to 0.30 mass percent, Si of 0.5 to 2.0 mass percent, Mn of 0.3 to 2.0 mass percent, Cr of 1.3 to 2.5 mass percent, Mo of 0.3 to 1.0 mass percent, and O of not more than 0.0012 mass percent in a range where (Si + Mo) ≥ 1.0 mass percent is satisfied, and contains iron and inevitable impurities as remnant; the maximum size of oxide nonmetallic inclusion is not more than 12.5 mu m when examined area is 320 mm ; number of the oxide nonmetallic inclusion having a diameter of equivalent circle of 3 mu m or more is not more than 250 when the examined area is 320 mm ; in addition, C density of an outer layer is adjusted to be in a range from 0.7 to 1.2 mass percent by carburization.

公开(公告)号：EP2088211A1

公开(公告)日：2009-08-12

申请号：EP09159236.0

申请日：2008-04-11

申请人： Saet S.p.A.

发明人： Cesano, Mariolino ,  Cena, Carlo

IPC分类号： C21D1/10 ,  H05B6/02 ,  C21D9/40

CPC分类号： C21D1/10 ,  C21D9/40 ,  C21D2221/00 ,  Y02P10/253

摘要： Devices for induction hardening rolling tracks (4) of thrust blocks (2) of bearings, according to a required hardening profile consisting in either one or two inductors (15, 16) arranged in tandem within a track (4) to be hardened, at a predetermined distance from a surface (3) of the track; wherein the thrust block (2) is rotated with respect to the inductors, so as to make them cover the entire track, with a complete 360° turn; a first inductor is made by coupling solid and electrically conducting metal blocks (40, 41), mounted on a support (42) provided with cooling means (45), said blocks (40, 41) being shaped so as to divide said first inductor, in a direction of relative motion (D) between the inductor and said mechanical component, into a first and a second portions (48, 49), the first portion (48) arranged downstream of the second one (49) with respect to a sense of relative motion (V) between the inductor and said mechanical component being wider than the second one transversally to said direction of relative motion (D), so that at least an active part of said first inductor (15) is T-shaped, in a plan view from the bottom. The second inductor is made of a tube (51) of electrically conducting metal material bent to form at least two half-turns (52), each of which essentially copies the profile of a surface (3) to be hardened; the tube (51) having the inside connected to circulation means (54) of a cooling fluid and having a cylindrical core (60) made of ferromagnetic material mounted straddling across said two half-turns (52), which are saddle-shaped, and preferably brazed onto said tube (51).

摘要翻译： 用于感应淬火轴承推力块（2）（4）的滚道装置，雅丁至所需硬化轮廓的任一个或一个轨道（4）内的串联布置的两个电感器（15，16）由被硬化，在 预定从轨道的一表面（3）的距离; worin推力块（2）旋转相对于所述电感器以便使它们覆盖整个轨道，具有完整的360°转动; 第一电感器通过耦合固体和导电的金属制成的块（40，41）安装在设置有冷却装置的支撑件（42）（45）所述的块（40,41）被成形为以将所述第一电感器 在电感器和所述机械部件之间的相对运动（D）的一个方向，分成第一和第二部分（48,49），相对于第二个（49）的下游布置成在所述第一部分（48） 电感器之间的相对运动（V）的有义和所述机械部件反射比第二横向于相对运动（D）的所述方向，作为所述第一电感器的活性部分（15）至少所做的是T形的， 从底部的俯视图。 所述第二电感器由电的管（51）的导电金属材料弯曲以形成至少两个半匝（52），其中的每一个基本上拷贝的表面（3）被硬化的轮廓; 具有内侧的管（51）连接到的循环装置（54）的冷却流体，并具有由铁磁材料制成的圆柱形芯（60），其安装穿过所述跨两个半匝（52），它们是鞍形的，并 优选钎焊到所述管（51）。

公开(公告)号：EP2012033A1

公开(公告)日：2009-01-07

申请号：EP07742312.7

申请日：2007-04-24

申请人： NSK Ltd.

发明人： TSUKAMOTO, Shigemi c/o NSK Ltd. ,  KAWAMURA, Katsuyuki c/o NSK Ltd. ,  ISHIDA, Hirohide c/o NSK Ltd. ,  WAKABAYASHI, Tatsuo c/o NSK Ltd.

IPC分类号： F16C33/64 ,  B24B5/06 ,  C21D1/10 ,  C21D9/40 ,  F16C19/18

CPC分类号： B24B5/06 ,  B24B19/06 ,  C21D1/10 ,  C21D9/40 ,  F16C19/186 ,  F16C33/64 ,  F16C2240/80 ,  F16C2326/02 ,  Y02P10/253 ,  Y10T29/49643 ,  Y10T29/49689

摘要： With respect to an outer ring 2b in which a diameter D B1 of a first outer ring raceway 10c is greater than a diameter D B2 of a second outer ring raceway 10b (D B1 > D B2 ), a method is realized which facilitates the entry of a grinding tool 12 into an inner side of the outer ring when these both outer ring raceways 10c and 10b are subjected to a grinding process.
As shown in (A) to (B), the grinding tool 12 is made to enter the inner side of the outer ring 2b through an opening on a side close to the first outer ring raceway 10c between the openings at both ends of this outer ring 2b. This resolves the above-described problem.

摘要翻译： 关于第一外圈滚道10c的直径DB1大于第二外圈滚道10b的直径DB2（DB1> DB2）的外圈2b，实现了一种方法，其有助于磨削工具的进入 当这两个外圈滚道10c和10b受到研磨处理时，所述外圈12,12进入外圈的内侧。 如（A）〜（B）所示，使研磨工具12经由该外侧的两端的开口部之间的第1外轮轨道10c侧的开口进入外轮2b的内侧 环2b。 这解决了上述问题。

公开(公告)号：EP1977020A1

公开(公告)日：2008-10-08

申请号：EP07704071.5

申请日：2007-01-23

申请人： SMS Elotherm GmbH

发明人： GEZARZICK, Waldemar ,  SEITZER, Andreas ,  JÜRGENS, Robert

IPC分类号： C21D9/40 ,  C21D1/10

CPC分类号： C21D1/10 ,  Y02P10/253

摘要： According to the invention, a workpiece which describes a closed curve is brought to hardening temperature in sections by means of inductive heating and the workpiece sections which are being heated in this way are subsequently quenched. The inductive heating is carried out using at least two inductors (10,11) which at the beginning of processing are together applied to the workpiece W at closely adjacent starting positions which bound a starting zone Zs. This starting zone Zs is heated to the hardening temperature by direct or indirect action of the electromagnetic field of at least one of the inductors (10,11). The inductors (10,11) are subsequently moved from their starting positions in opposed directions along the workpiece. The opposite movement of the inductors (10,11) is continued until the inductors (10,11) have reached an end position E1,E2 in which their further movement is hindered by the other nearest neighbour inductor (10,11) in the end position E1,E2. The remaining end zone ZE between the inductors (10,11) located in the end position E1,E2 is finally heated to the hardening temperature by direct action of the electromagnetic field of at least one of the inductors (10,11) by the inductors (10,11) being moved together over the end zone ZE in a direction opposite to the direction of movement of one of the inductors (10,11).

公开(公告)号：EP1972395A3

公开(公告)日：2008-10-08

申请号：EP08005032.1

申请日：2008-03-18

申请人： Neturen Co., Ltd.

发明人： Yamawaki, Takashi ,  Suzuki, Ryosuke ,  Murata, Tetsuji ,  Yamamoto, Tsuyoshi ,  Kiyosawa, Yutaka

IPC分类号： B21K1/76 ,  B21D41/04 ,  B23P15/14 ,  B62D3/12 ,  F16H55/26 ,  C21D9/00 ,  C21D9/40 ,  C21D9/42 ,  C21D1/10

CPC分类号： B21K1/767 ,  B21C5/003 ,  B21D41/04 ,  B21K1/768 ,  B23P15/14 ,  B62D3/126 ,  C21D9/0068 ,  C21D9/32 ,  F16H55/26

摘要： Method for reducing the diameter of an end portion (4a) on a cylindrical end side portion (4) of a hollow bar (1A), said hollow bar having on its other end side portion (3) a rack formed with an end rack tool (2a,2b) at both ends. In said bar (1A), a depression (12,15) is also provided between each end rack tooth (2a,2b) and a corresponding adjoining portion (11,14) of said end side portion (3) having an inclined portion (11a,14a) opposing the tooth side face of the corresponding end rack tooth (2a,2b) and continuous to each of the both ends of the rack (2). First, the one end side portion (3) is nipped by means of a jig (21) including a jig member (22) having a pair of convex portions (25) which are to be fitted inside said depressions to position the bar (1A), and a jig member (28) which is to be clamped/opened with respect to the jig member (22). After that, a compression die (31) having an inside diameter smaller than the diameter of the outer periphery is pressed onto the outer periphery of the end portion (4a) of the cylindrical end side portion (4) projected from the jig (21) up to a press-in depth M determined preliminarily based on the rack (2), so as to reduce the diameter of the end portion (4a).

摘要翻译： 1。一种用于减小空心杆（1A）的圆柱形端侧部分（4）上的端部部分（4a）的直径的方法，所述空心杆在其另一端侧部分（3）上具有形成有端部齿条工具 （2a，2b）。 在所述杆（1A）中，在每个端部齿条齿（2a，2b）与所述端部侧部分（3）的相应邻接部分（11,14）之间还设置有凹部（12,15），所述凹部具有倾斜部分 （2a，2b）的齿侧面相对并且与齿条（2）的两端中的每一个相连续。 首先，通过夹具（21）夹住一端侧部分（3），该夹具包括具有一对凸起部分（25）的夹具部件（22），所述凸起部分将被装配在所述凹陷部分内以定位所述杆（1A ）和夹具构件（28），该夹具构件（28）相对于夹具构件（22）被夹紧/打开。 之后，将内径比外周的直径小的压缩模具（31）压到从夹具（21）突出的圆筒形端侧部分（4）的端部（4a）的外周上， 直到预先基于齿条（2）确定的压入深度M，从而减小端部（4a）的直径。

公开(公告)号：EP1972395A2

公开(公告)日：2008-09-24

申请号：EP08005032.1

申请日：2008-03-18

申请人： Neturen Co., Ltd.

发明人： Yamawaki, Takashi ,  Suzuki, Ryosuke ,  Murata, Tetsuji ,  Yamamoto, Tsuyoshi ,  Kiyosawa, Yutaka

IPC分类号： B21K1/76 ,  B21D41/04 ,  B23P15/14 ,  B62D3/12 ,  F16H55/26 ,  C21D9/00 ,  C21D9/40 ,  C21D9/42 ,  C21D1/10

CPC分类号： B21K1/767 ,  B21C5/003 ,  B21D41/04 ,  B21K1/768 ,  B23P15/14 ,  B62D3/126 ,  C21D9/0068 ,  C21D9/32 ,  F16H55/26

摘要： Method for reducing the diameter of an end portion (4a) on a cylindrical end side portion (4) of a hollow bar (1A), said hollow bar having on its other end side portion (3) a rack formed with an end rack tool (2a,2b) at both ends. In said bar (1A), a depression (12,15) is also provided between each end rack tooth (2a,2b) and a corresponding adjoining portion (11,14) of said end side portion (3) having an inclined portion (11a,14a) opposing the tooth side face of the corresponding end rack tooth (2a,2b) and continuous to each of the both ends of the rack (2). First, the one end side portion (3) is nipped by means of a jig (21) including a jig member (22) having a pair of convex portions (25) which are to be fitted inside said depressions to position the bar (1A), and a jig member (28) which is to be clamped/opened with respect to the jig member (22). After that, a compression die (31) having an inside diameter smaller than the diameter of the outer periphery is pressed onto the outer periphery of the end portion (4a) of the cylindrical end side portion (4) projected from the jig (21) up to a press-in depth M determined preliminarily based on the rack (2), so as to reduce the diameter of the end portion (4a).

摘要翻译： 用于在中空杆（1A）的圆柱形端侧部（4）减少的端部（4a）的直径的方法，所述具有在其另一端侧部分的中空杆（3）以结束机架工具形成的齿条 （2A，2B）的两端。 在所述杆（1A），一个凹部（12,15）。所述（3）在倾斜部分具有端侧部分的每个端部齿条齿（2A，2B）和相应的邻接部分（11,14）之间（被如此设置 图11A，14A）相对的相应端部齿条齿的齿侧面（2A，2B）和连续到每个机架（2）的两端的。 首先，将一端侧部（3）由具有一对凸部（25）将被装配在所述凹部以定位杆内的夹具（21），其包括夹具部件（22）的手段（1A夹持 ），以及一个夹具构件（28）所有要被夹紧/相对于所述夹具构件（22）打开。 （4）从夹具突出（21）在此之后，具有在内径比外周的直径小的压缩，（31）被压到圆筒形端侧部分的端部（4a）的外周 到的压入深度中号确定性开采预先基于所述机架（2），以便减小所述端部（4a）的直径。

公开(公告)号：EP1482193A4

公开(公告)日：2008-07-02

申请号：EP03710256

申请日：2003-03-06

申请人： JTEKT CORP

发明人： TODA KAZUTOSHI ,  KASHIWAGI SHINICHIROU ,  TOMITA DAISAKU

IPC分类号： B60B27/00 ,  F16C19/18 ,  F16C19/38 ,  F16C35/063 ,  F16C43/04 ,  C21D9/40

CPC分类号： B60B27/0084 ,  B60B27/00 ,  B60B27/0005 ,  B60B27/001 ,  B60B27/0094 ,  C21D2211/003 ,  C21D2211/009 ,  F16C19/186 ,  F16C19/187 ,  F16C19/386 ,  F16C35/063 ,  F16C43/04 ,  F16C2326/02 ,  Y10T29/49636

摘要： A bearing device, comprising a bearing ring and a shaft body formed of a carbon steel having pearlite with cementite the lamellar structure of cementite and having an end part caulked into the bearing ring, wherein the layer-to-layer distances of the cementite in the pearlite are increased at least at the end part of the shaft body.

摘要翻译： 一种轴承装置，包括轴承环和轴体，该轴体由具有珠光体的碳钢形成并具有渗碳体的层状结构并且具有嵌入轴承环中的端部，其中渗碳体在 珠光体至少在轴体的端部增加。

公开(公告)号：EP1925680A2

公开(公告)日：2008-05-28

申请号：EP08003050.5

申请日：2002-09-13

申请人： NTN Corporation

发明人： Tamada, Kenji ,  Maeda, Kikuo ,  Kawamura, Tomoaki ,  Nakashima, Hirokazu ,  Fujita, Takumi ,  Sasabe, Mitsuo

IPC分类号： C21D9/40 ,  F16C19/30 ,  F16C33/34 ,  F16C33/62

CPC分类号： F16C33/547 ,  F04B27/1063 ,  F16C19/305 ,  F16C23/088 ,  F16C33/34 ,  F16C33/4635 ,  F16C33/48 ,  F16C33/543 ,  F16C33/64 ,  F16C2240/40 ,  F16C2240/50 ,  F16C2360/00 ,  Y10T29/49636 ,  Y10T29/49643 ,  Y10T29/49645 ,  Y10T29/49689 ,  Y10T29/49693

摘要： There is provided a roller thrust bearing providing reduced differential slip, free of significant friction and wear, and providing increased longevity against flaking. The present invention provides a thrust bearing in the form of a roller thrust bearing (1) including at least two radially arranged rows of rollers (2) and a cage (3) holding the rollers, the rollers including at least one roller crowned (25).

摘要翻译： 提供了一种滚子推力轴承，其提供减小的差速滑移，没有显着的摩擦和磨损，并且提供增加的寿命以防止剥落。 本发明提供一种滚子止推轴承（1）的形式的止推轴承，该推力轴承包括至少两个径向排列的滚子列（2）和保持滚子的保持架（3），所述滚子包括至少一个辊顶（25） ）。 至少两排的辊数相等，并且径向相邻的辊设置在笼的公共袋中。

公开(公告)号：EP1908852A1

公开(公告)日：2008-04-09

申请号：EP06768021.5

申请日：2006-07-10

申请人： NTN Corporation

发明人： HIRAI, Isao, c/o NTN CORPORATION ,  YOSHINO, Kohei c/o NTN CORPORATION ,  TAKUBO, Takayasu, c/o NTN CORPORATION ,  FUJIMURA, Akira c/o NTN CORPORATION ,  OBATA,Takuya, c/o NTN CORPORATION

IPC分类号： C21D9/40 ,  C21D8/00 ,  B60B27/00 ,  B60B35/02 ,  F16C19/18 ,  F16C33/62 ,  F16C33/64

CPC分类号： F16C33/62 ,  B60B27/0005 ,  B60B27/001 ,  B60B27/0042 ,  B60B27/0084 ,  B60B27/0094 ,  C21D1/02 ,  C21D1/06 ,  C21D1/19 ,  C21D1/62 ,  C21D9/40 ,  C21D2211/002 ,  C21D2211/005 ,  C21D2211/008 ,  C21D2221/00 ,  F16C33/64 ,  F16C35/063 ,  Y10T29/49679

摘要： A wheel support bearing assembly, which enables an increase in the strength and the fatigue strength of its wheel mounting flange or vehicle body fitting flange against high stress and repeated stress and the suppression of the increase of the number of processes, .includes an inner member and an outer member rotatable relative to each other through rolling elements. The flange is formed on the inner member or the outer member, for example, a hub. A component part having the flange is a hot-forged product of steel in which a matrix portion is formed as a standard structure and the non-standard structural portion is formed on the surface of the flange. The non-standard structure is formed of either of a fine ferrite/pearlite structure, an upper bainite structure, a lower bainite structure, and a tempered martensite structure, or mixture of two or more of these structures.

摘要翻译： 一种车轮支撑轴承组件，其能够提高其车轮安装凸缘或车身安装凸缘的强度和疲劳强度以抵抗高应力和反复应力，并且抑制了工艺数量的增加，其包括内部构件 以及通过滚动元件相对于彼此可旋转的外部构件。 凸缘形成在内部构件或外部构件上，例如毂。 具有所述凸缘的部件是钢的热锻制品，其中基体部分形成为标准结构，并且所述非标准结构部分形成在所述凸缘的表面上。 非标准组织由细铁素体/珠光体组织，上贝氏体组织，下贝氏体组织和回火马氏体组织中的任一种或这些组织中的两种或更多种的混合物形成。

公开(公告)号：EP1541377A4

公开(公告)日：2008-01-02

申请号：EP03741405

申请日：2003-07-15

申请人： NSK LTD

发明人： UYAMA HIDEYUKI ,  MIYAMOTO YUUJI ,  OKITA SHIGERU

IPC分类号： B60B27/00 ,  B60B27/02 ,  B60B35/18 ,  C21D9/40 ,  C22C38/02 ,  C22C38/04 ,  C22C38/08 ,  C22C38/18 ,  C22C38/24 ,  F16C19/18 ,  F16C33/62 ,  F16C33/64

CPC分类号： C22C38/28 ,  B60B27/00 ,  C21D9/40 ,  C22C38/002 ,  C22C38/02 ,  C22C38/04 ,  C22C38/18 ,  C22C38/24 ,  C22C38/26 ,  F16C19/185 ,  F16C19/186 ,  F16C33/64 ,  Y10S384/913 ,  Y10T29/49679

摘要： A rolling bearing unit for supporting a wheel, wherein, as an embodiment, a flanged member (hub wheel 2) is formed of an alloy steel having one or more types of C of 0.5 to 0.65 wt.%, Mn of 0.3 to 1.5 wt.%, Si of 0.1 to 1.0 wt.%, Cr of 0.01 to 0.5 wt.%, S of 0.035 wt.% or less, V of 0.01 to 0.2 wt.%, Nb of 0.01 to 0.15 wt.%, and Ti of 0.01 to 0.15 wt.% and the remaining Fe and unavoidable impurities and having an oxygen density of 15 ppm or less, the surface hardness of an inner ring railway track (7a) forming a hard layer is Hv 650 to 780 and the surface hardness of the portions thereof not forming the hard layer is Hv 230 to 300, whereby the durability ratio (fatigue limit/tensile strength) of the flange (6) can be increased by limiting the composition of the alloy steel forming the flanged member (hub ring 2), the surface hardness and surface roughness of the axial outer surface side root portion (14) of the flange (6) to reduce the weight of the unit by reducing the wall thickness of the flange (6) without impairing the fatigue strength, machinability, and workability after forging.