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公开(公告)号：US20170307018A1
公开(公告)日：2017-10-26
申请号：US15523413
申请日：2015-11-06
Applicant: NTN CORPORATION
Inventor： Kazuyuki YAMAMOTO , Hisataka HASEGAWA
CPC classification number: F16C19/463 , B21D53/12 , F16C19/305 , F16C33/541 , F16C33/546 , F16C33/6681 , F16C2220/42 , F16C2240/30 , F16C2326/01
Abstract: 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) and project inward in the radial direction so as to contact end faces (16) of the rollers (13) accommodated in the pockets. Radially outer edges (21a) of the pockets (21) are located radially outside base end parts (44a) of the projecting portions (44).
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公开(公告)号：US20170314620A1
公开(公告)日：2017-11-02
申请号：US15523414
申请日：2015-11-06
Applicant: NTN CORPORATION
Inventor： Kazuyuki YAMAMOTO , Hisataka HASEGAWA
CPC classification number: F16C19/463 , B21D53/12 , F16C19/305 , F16C33/541 , F16C33/546 , F16C33/6681 , F16C2220/42 , F16C2240/30 , F16C2326/01
Abstract: 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 height (H36) of the first cylindrical portion (36) in the direction of the rotation axis is smaller than the height (H37) of the second cylindrical portion (37) in the direction of the rotation axis.
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Patent Agency Ranking
公开(公告)号：US20170307017A1
公开(公告)日：2017-10-26
申请号：US15523405
申请日：2015-11-06
Applicant: NTN CORPORATION
Inventor： Kazuyuki YAMAMOTO , Hisataka HASEGAWA
CPC classification number: F16C19/463 , B21D53/12 , F16C19/305 , F16C33/541 , F16C33/546 , F16C33/6681 , F16C2220/42 , F16C2240/30 , F16C2326/01
Abstract: 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 to a tilt angle of less than 45°; 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).
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公开(公告)号：US20170307007A1
公开(公告)日：2017-10-26
申请号：US15523408
申请日：2015-11-06
Applicant: NTN CORPORATION
Inventor： Kazuyuki YAMAMOTO , Hisataka HASEGAWA
CPC classification number: F16C19/463 , B21D53/12 , F16C19/305 , F16C33/541 , F16C33/546 , F16C33/6681 , F16C2220/42 , F16C2240/30 , F16C2326/01
Abstract: 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 the cage (11) inward in a radial direction along an annular groove formed at a position radially outside the pockets (21); 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). A trace (29) of the groove is left at a position along which the cage is bent.
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公开(公告)号：US20160333936A1
公开(公告)日：2016-11-17
申请号：US15109885
申请日：2014-12-11
Applicant: NTN Corporation
Inventor： Shingo KONO , Kazuyuki YAMAMOTO
CPC classification number: F16C33/546 , B21D53/10 , B21D53/12 , F16C19/305 , F16C19/463 , F16C33/541
Abstract: 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.
Abstract translation: 推力滚子轴承保持架（11）是设置在推力滚子轴承上并具有容纳滚针（13）的多个凹穴（21）的保持架（11）。 保持架（11）包括通过沿着半径向内弯曲保持架（11）的径向外部区域并且沿着半径向内朝向凹穴（21）的径向外部区域向内突出而形成的突出部（44），以形成接触 与辊（13）的端面（16）。 突起（44）具有与辊（13）的端面（16）接触的角部（45）。 角部（45）压平。
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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
Applicant: NTN CORPORATION
Inventor： Kazuyuki YAMAMOTO , Hisataka HASEGAWA
CPC classification number: F16C19/463 , B21D53/12 , F16C19/305 , F16C33/541 , F16C33/546 , F16C33/6681 , F16C2220/42 , F16C2240/30 , F16C2326/01
Abstract: 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
Applicant: NTN CORPORATION
Inventor： Kazuyuki YAMAMOTO , Hisataka HASEGAWA
CPC classification number: F16C19/463 , B21D53/12 , F16C19/305 , F16C33/541 , F16C33/546 , F16C33/6681 , F16C2220/42 , F16C2240/30 , F16C2326/01
Abstract: 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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