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公开(公告)号:US1625131A
公开(公告)日:1927-04-19
申请号:US68869924
申请日:1924-01-26
发明人: LEE MILLER GEORGE
IPC分类号: B21K1/04
CPC分类号: B21K23/00 , B21D19/005 , B21D53/12 , B21J13/025 , B21K1/04 , F16C19/364 , F16C33/543 , Y10S425/005
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公开(公告)号:US10060476B2
公开(公告)日:2018-08-28
申请号:US15109885
申请日:2014-12-11
申请人: NTN CORPORATION
发明人: Shingo Kono , Kazuyuki Yamamoto
CPC分类号: F16C33/546 , B21D53/10 , B21D53/12 , F16C19/305 , F16C19/463 , F16C33/541
摘要: A thrust roller bearing cage (11) is a cage (11) provided to a thrust roller bearing and having a plurality of pockets (21) that house needle rollers (13). The cage (11) includes projections (44) that are formed by bending a radially outer area of the cage (11) inwardly along the radius and that project inwardly along the radius toward a radially outer area of the pockets (21) to make contact with end faces (16) of the rollers (13). The projections (44) have corners (45) that make contact with the end faces (16) of the rollers (13). The corners (45) are press-flattened.
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公开(公告)号:US20180172068A1
公开(公告)日:2018-06-21
申请号:US15578749
申请日:2016-06-08
CPC分类号: F16C19/364 , B21D53/10 , B21D53/12 , F16C19/225 , F16C33/64 , F16C43/086
摘要: Tapered roller bearings and methods of producing the same are disclosed. One method is for producing an inner ring for a tapered roller bearing in which the inner ring comprises a raceway portion and a fixed edge portion. The method may include providing an inner ring blank and an unfinished fixed edge portion. The inner ring blank may include an unfinished raceway portion and the unfinished fixed edge portion may have a larger outside diameter than the unfinished raceway portion. The inner ring blank may have a through-opening. The inner ring blank may be formed into the inner ring by extrusion in a main forming step, the unfinished fixed edge portion being transformed into the fixed edge portion and the unfinished raceway portion being transformed into the raceway portion. The inner ring may be formed in its final contour without any cutting.
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公开(公告)号:US20180010638A1
公开(公告)日:2018-01-11
申请号:US15599893
申请日:2017-05-19
发明人: Ian Breeze
CPC分类号: B21D53/12 , F16C19/26 , F16C19/36 , F16C19/361 , F16C33/3887 , F16C33/4605 , F16C33/4611 , F16C33/4641 , F16C33/467 , F16C33/4676 , F16C33/504 , F16C33/547 , F16C43/065 , F16C2220/04 , F16C2220/20 , F16C2220/24
摘要: The invention relates to a rolling element bearing cage formed of one or more segments, each segment comprising: a supporting frame having a plurality of spaced apart openings each for accommodating a rolling element; and a reinforcing frame, inserted within the supporting frame, having a corresponding plurality of openings each for aligning with the openings of the supporting frame.
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公开(公告)号:US20170321751A1
公开(公告)日:2017-11-09
申请号:US15523409
申请日:2015-11-06
申请人: NTN CORPORATION
CPC分类号: F16C19/463 , B21D53/12 , F16C19/305 , F16C33/541 , F16C33/546 , F16C33/6681 , F16C2220/42 , F16C2240/30 , F16C2326/01
摘要: A thrust roller bearing cage (11) of the present invention is included in a thrust roller bearing (20) and includes a plurality of pockets (21) accommodating rollers (13). The thrust roller bearing cage (11) includes: a first cylindrical portion (36) extending in a direction of a rotation axis (12); a first disc portion (31) continuous with the first cylindrical portion (36) and extending in a radially outward direction; and a second cylindrical portion (37) continuous with the first disc portion (31) and extending in the direction of the rotation axis (12). The first cylindrical portion (36), the first disc portion (31), and the second cylindrical portion (37) are formed in an area located radially inside the pockets (21). The first disc portion (31) has a through hole (53).
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公开(公告)号:US20170307006A1
公开(公告)日:2017-10-26
申请号:US15523407
申请日:2015-11-06
申请人: NTN CORPORATION
CPC分类号: F16C19/463 , B21D53/12 , F16C19/305 , F16C33/541 , F16C33/546 , F16C33/6681 , F16C2220/42 , F16C2240/30 , F16C2326/01
摘要: A thrust roller bearing cage (11) of the present invention is included in a thrust roller bearing (20) and includes a plurality of pockets (21) accommodating rollers (13). The thrust roller bearing cage (11) includes: a radially outer area bent portion (41) formed by bending an area located radially outside the pockets (21) inward in a radial direction; and projecting portions (44) that are formed in a tip end of the radially outer area bent portion (41) at positions aligned with the pockets (21) and project inward in the radial direction beyond radially outer edges of the pockets (21) so as to contact end faces (16) of the rollers (13) accommodated in the pockets (21). The projecting portions (44) have a width that is ⅓ or more and ⅔ or less of the width of the pockets (21).
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公开(公告)号:US09752618B2
公开(公告)日:2017-09-05
申请号:US14782379
申请日:2014-04-03
申请人: AKTIEBOLAGET SKF
发明人: Hans Lindèn
CPC分类号: F16C33/545 , B21D53/12 , F16C23/086 , F16C33/422 , F16C33/427 , F16C33/4658 , F16C33/485 , F16C33/542 , F16C33/547
摘要: A method for producing an annular-shaped cage for a rolling bearing assembly. The method comprises steps of: (a) providing a workpiece contained in a plane having a first side and a second side; (b) forming an annular-shaped cage from the workpiece, the annular-shaped cage having a U-shaped cross section such that portions of the first side of the workpiece face each other; and (c) forming a plurality of windows in the workpiece for receiving and positioning a set of rolling elements.
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公开(公告)号:US09441672B2
公开(公告)日:2016-09-13
申请号:US14384918
申请日:2013-03-06
申请人: NTN Corporation
发明人: Yoshiya Mano , Hiroshi Nakahashi , Kouhei Kondou , Hajime Kawamura , Shingo Kinpara , Yasunori Yamamoto
CPC分类号: F16C33/541 , B21D41/026 , B21D53/12 , F16C19/26 , F16C19/463 , F16C33/543 , F16C33/546 , F16C2220/42 , F16C2220/46 , F16C2220/84 , F16C2240/60 , Y10T29/49691
摘要: A method for producing a holder in which sagging is suppressed in a bent part to be formed into a flange portion, without using bulge forming and a split mold that restrains the inside of a working target article; and a holder. An upper punch presses and bends one end portion of a working target article inward, whereby a flange portion is formed in the one end portion. A smaller-diameter portion of the working target article is restrained from the inside and outside by a lower punch and split mold portions. Then, a peripheral surface portion of a convex portion of the upper punch receives the end portion of the working target article and applies an outward pressure to the end portion. A bent part is pushed toward a larger-diameter portion restraining part of a split die, so that sagging is prevented from occurring in the bent part.
摘要翻译: 一种制造保持器的方法,其中在不使用凸起成形的弯曲部分中抑制下垂以形成凸缘部分,并且限制工作目标制品内部的分割模具; 和持有人。 上冲头向内压入并弯曲加工对象物的一端部,由此在一端部形成有凸缘部。 通过下冲头和分模模具部分将工件对象物品的较小直径部分从内外限制。 然后,上冲头的凸部的周面部分容纳加工对象物品的端部,向端部施加向外的压力。 弯曲部被推向分割模具的大直径部分限制部分,从而防止在弯曲部分中发生下垂。
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公开(公告)号:US20140083154A1
公开(公告)日:2014-03-27
申请号:US13627225
申请日:2012-09-26
申请人: Young Je SEONG
发明人: Young Je SEONG
IPC分类号: B21D53/00
CPC分类号: B21D53/12 , B21D35/001
摘要: Disclosed is a method for manufacturing a transmission bearing retainer. The method includes a step of forming a bolt hole at the bearing retainer, wherein the bolt is inserted into the bolt hole. The step of forming the bolt hole includes: a step of forming a holt base hole of the bolt hole through piercing of a press working method; a step of forming an expanded hole through a first cold forging of the press working method, wherein a bolt head of the bolt being in contact with the expanded hole; and a step of forming anti-rotation grooves on a surface of the expanded hole through a second cold forging.
摘要翻译: 公开了一种制造传动轴承保持器的方法。 该方法包括在轴承保持器上形成螺栓孔的步骤,其中螺栓插入螺栓孔中。 形成螺栓孔的步骤包括:通过冲压加工方法穿过螺栓孔的孔基孔形成步骤; 通过冲压加工方法的第一冷锻成形加工孔的工序,其中螺栓的螺栓头与膨胀孔接触; 以及通过第二冷锻在所述扩孔的表面上形成防旋转槽的步骤。
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公开(公告)号:US20130182990A1
公开(公告)日:2013-07-18
申请号:US13628514
申请日:2012-09-27
发明人: Wolfgang Fugel , Volker Ploetz , Martin Gegner , Jesko Jaekel
IPC分类号: F16C33/46
CPC分类号: F16C33/46 , B21D53/12 , F16C9/04 , F16C33/543 , F16C2220/70 , F16C2240/60
摘要: A radial cage in which roll forming is carried out in such a manner that straight side sections of all axial crossbars continue to have at least approximately a material thickness of a starting material for the radial cage, while side rings of the radial cage and axial center sections of the axial crossbars are implemented by rolling down during roll forming to each have material thicknesses that are smaller than the material thickness of the straight side sections and that reduce their centrifugal mass.
摘要翻译: 一种径向保持架,其中成形方式使得所有轴向十字条的直边部分继续具有用于径向保持架的起始材料的至少近似材料厚度,而径向保持架和轴向中心的侧环 轴向横梁的横截面通过在轧制成形期间向下滚动来实现,每个部分的材料厚度小于直边部分的材料厚度并且减小它们的离心质量。
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