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公开(公告)号：US20230392648A1
公开(公告)日：2023-12-07
申请号：US18249092
申请日：2021-09-08
发明人： Stefan Wächtler , Robert Dressel , Alfred Hock
IPC分类号： F16C33/56
CPC分类号： F16C33/56
摘要： A plastic cage consists of two side rings that have a common axis of rotation and are axially spaced apart from one another, and a plurality of cage webs that connect the side rings to one another and between which pockets are formed for receiving rolling elements, wherein the plastic cage is axially slotted at at least one peripheral location by a parting line which defines a first cage end and a second cage end and at the boundary surfaces of which mutually corresponding closure elements are located, by means of which the first and second cage ends can be fixed relative to one another both in the axial and radial direction and in the peripheral direction.
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公开(公告)号：USRE48843E1
公开(公告)日：2021-12-07
申请号：US16381315
申请日：2019-04-11
申请人： NSK LTD.
发明人： Naoki Matsuyama , Sumio Sugita , Yu Koiwa , Takaaki Anzai , Tamotsu Misawa , Masaru Terasaki
摘要： A rolling bearing includes an inner ring having an outer surface, an outer ring having an inner surface, a plurality of rolling elements rotatably disposed between the inner ring and the outer ring, and a retainer for retaining the rolling elements. The retainer is made of a resin material and is positioned with respect to the inner surface of the outer ring or the outer surface of the inner ring. The retainer includes a pair of annular portions axially arranged in parallel and a columnar portion coupling the annular portions. Then, the rolling bearing satisfies the following expression: AI=LH3/dm≥0.025 LH3/dm2≥0.025 mm2 in which H is a radial length of a section of the annular portion, L is an axial length of the same, and dm is PCD of the rolling element.
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3.发明授权公开(公告)号：US11009074B1
公开(公告)日：2021-05-18
申请号：US16679714
申请日：2019-11-11
申请人： AKTIEBOLAGET SKF
摘要： A rolling-element bearing cage or a rolling-element bearing cage segment includes a first side ring or a first side ring segment formed from aluminum alloy AA2618, a second side ring or a second side ring segment formed from aluminum alloy AA2618, and at least one bridge formed from aluminum alloy AA2618, the at least one bridge connecting the first side ring to the second side ring or connecting the first side ring segment to the second side ring segment.
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公开(公告)号：US20200049199A1
公开(公告)日：2020-02-13
申请号：US16346221
申请日：2017-11-10
申请人： NSK LTD.
发明人： Shuji SOGA
摘要： Each of both circumferential side surfaces of both axial end portions of the column portion located axially outer than the roller holding portion includes a first flat surface which gradually shortens a circumferential length of the column portion from an outer circumferential surface toward an inner diameter side and a second flat surface which gradually lengthens the circumferential length of the column portion from a connecting portion with the first flat surface toward the inner diameter side. A pocket corner portion between the column portion and the annular portion includes a first curved surface which has a first curvature radius and which connects the first flat surface to the annular portion and a second curved surface which has a second curvature radius larger than the first curvature radius and which connects the second flat surface to the annular portion.
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5.发明授权公开(公告)号：US10408267B2
公开(公告)日：2019-09-10
申请号：US15712278
申请日：2017-09-22
申请人： NTN CORPORATION
发明人： Tatsuya Omoto , Eiichi Nakamizo , Tomoya Sakaguchi
IPC分类号： F16C43/04 , F16C33/46 , F16C19/36 , F16C33/56 , F16C33/51 , F16C19/38 , F16C35/063 , F03D80/70 , F03D9/25 , F16C41/04
摘要： A tapered roller bearing (31a) has a plurality of retainer segments (11a, 11d) each having a pocket to house a tapered roller (34a), and arranged so as to be continuously lined with each other in a circumferential direction between an outer ring (32a) and an inner ring (33a). The retainer segment (11a, 11d) is formed of a resin containing a filler material to lower a thermal linear expansion coefficient. In addition, a clearance (39a) is provided between the first retainer segment (11a) and the last retainer segment (11d) after the plurality of retainer segments (11a, 11d) have been arranged in the circumferential direction without providing any clearance. Here a circumferential range (R) of the clearance (39a) is larger than 0.075% of a circumference of a circle passing through a center of the retainer segment (11a, 11d) and smaller than 0.12% thereof at room temperature.
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公开(公告)号：US10312768B2
公开(公告)日：2019-06-04
申请号：US15600471
申请日：2017-05-19
申请人： DENSO CORPORATION
发明人： Hiroki Tomizawa , Koji Isogai
IPC分类号： H02K5/173 , F16C33/44 , F16C33/82 , H02K5/06 , H02K5/128 , F16C25/08 , F16C33/38 , F16C33/56 , F16C33/76 , H02K5/16 , F16C19/06 , F16C19/54 , H02K5/10 , H02K5/24 , H02K7/10 , H02K11/33
摘要： An electric motor is provided which is designed to minimize a risk of corrosion or stress corrosion cracking of parts thereof and reduce mechanical vibration or noise. The electric motor includes an output shaft, a bearing which retains the output shaft, a frame, and a biasing member. The biasing member is made of austenite stainless steel and disposed between the bearing and a bottom wall of a bearing housing to elastically press the output shaft in a lengthwise direction thereof for eliminating mechanical noise arising from vibration of a rotor. The frame has a coating formed on an outer surface thereof for avoiding erosion thereof. The coating is not formed at least on a portion of the frame which faces the biasing member in order to induce sacrificial corrosion of the frame, which decelerates the corrosion of the biasing member to eliminate a risk of the stress corrosion cracking thereof.
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公开(公告)号：US20190063492A1
公开(公告)日：2019-02-28
申请号：US16054488
申请日：2018-08-03
发明人： Masashi OZAKI , Kengo KISHI
摘要： In a bearing device 1, a plurality of columnar needle rollers 13 are provided. A cage 14 is provided in which the needle rollers 13 are arranged in parallel with each other along an axial direction R of a pin roller 9, so that the needle rollers 13 form a cylindrical configuration around the pin roller 9. The cage 14 has oppositely placed two rings 17 and a plurality of bridge pieces 18 bridged between the two rings 17, and having the bridge pieces 18 to rotatably accommodate the needle rollers 13 in order to achieve higher performances.
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公开(公告)号：US20170338713A1
公开(公告)日：2017-11-23
申请号：US15600471
申请日：2017-05-19
申请人： DENSO CORPORATION
发明人： Hiroki TOMIZAWA , Koji ISOGAI
IPC分类号： H02K5/173 , F16C33/44 , H02K5/06 , F16C33/82 , H02K5/128 , H02K5/16 , F16C33/38 , F16C33/56 , F16C33/76
CPC分类号： H02K5/1732 , F16C19/06 , F16C19/54 , F16C25/083 , F16C33/38 , F16C33/445 , F16C33/565 , F16C33/76 , F16C33/82 , F16C2380/26 , H02K5/06 , H02K5/10 , H02K5/128 , H02K5/16 , H02K5/173 , H02K5/24 , H02K7/1004 , H02K11/33
摘要： An electric motor is provided which is designed to minimize a risk of corrosion or stress corrosion cracking of parts thereof and reduce mechanical vibration or noise. The electric motor includes an output shaft, a bearing which retains the output shaft, a frame, and a biasing member. The biasing member is made of austenite stainless steel and disposed between the bearing and a bottom wall of a bearing housing to elastically press the output shaft in a lengthwise direction thereof for eliminating mechanical noise arising from vibration of a rotor. The frame has a coating formed on an outer surface thereof for avoiding erosion thereof. The coating is not formed at least on a portion of the frame which faces the biasing member in order to induce sacrificial corrosion of the frame, which decelerates the corrosion of the biasing member to eliminate a risk of the stress corrosion cracking thereof.
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9.发明授权Method for producing a rolling bearing cage for an axial-radial rolling bearing and axial-radial rolling bearing 有权轴向滚动轴承和轴向滚动轴承用滚动轴承保持架的制造方法公开(公告)号：US09541131B2
公开(公告)日：2017-01-10
申请号：US14381885
申请日：2013-02-27
CPC分类号： F16C33/48 , B05D1/24 , B05D3/0218 , F16C19/381 , F16C19/386 , F16C33/4629 , F16C33/513 , F16C33/565 , F16C43/04 , F16C2208/36 , F16C2223/40 , F16C2240/60 , F16C2300/14 , Y10T29/49691
摘要： The invention relates to a method for producing a rolling bearing cage for a rolling bearing comprising at least one row of rolling elements. In the method according to the invention, a ring or a ring element made of a metallic solid material is provided and shaped by a forming process and/or a cutting, material-removing process into an annular or segmented main body of the rolling bearing cage. The main body has openings for receiving a respective rolling element, the main body being heated to a temperature above a minimum coating temperature for thermal coating with a thermoplastic material powder, wherein the main body is then immersed in a fluidized bed containing the thermoplastic material powder, wherein thermoplastic material powder adheres to the main body, melts and forms a contiguous coating while the main body is present in the fluidized bed, and wherein, after the coating, the main body is removed from the fluidized bed. The invention further relates to an axial-radial rolling bearing with the described rolling bearing cage.
摘要翻译： 本发明涉及一种用于制造滚动轴承的滚动轴承保持器的方法，该滚动轴承保持架包括至少一排滚动元件。 在根据本发明的方法中，由金属固体材料制成的环或环形元件通过成形工艺和/或切割材料去除工艺成形为滚动轴承保持架的环形或分段主体 。 主体具有用于接收相应的滚动元件的开口，主体被加热到高于最小涂覆温度的温度，以用热塑性材料粉末进行热涂覆，其中主体然后浸入含有热塑性材料粉末的流化床 其中热塑性材料粉末粘附到主体上，熔融并形成邻近的涂层，同时主体存在于流化床中，并且其中，在涂覆之后，主体从流化床中移出。 本发明还涉及具有所述滚动轴承保持架的轴向 - 径向滚动轴承。
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公开(公告)号：US20160333935A1
公开(公告)日：2016-11-17
申请号：US15221113
申请日：2016-07-27
摘要： Disclosed is an axial-radial rolling bearing having an inner ring, an outer ring disposed around the inner ring, and a plurality of rolling bodies in the form of rollers arranged into at least one row disposed between and separating the inner ring and the outer ring. The rolling bearing further includes at least one rolling bearing cage disposed around at least part of the rollers and configured to maintain a predetermined spacing of each of the rollers from each adjacent roller in the at least one row, wherein the rolling bearing cage comprises a plastic coated main body that is at least one of ring-shaped or segmented. The main body has openings for receiving the respective rolling elements.
摘要翻译： 公开了一种轴向 - 径向滚动轴承，其具有内圈，围绕内圈设置的外圈和多个滚筒形式的滚动体，布置成至少一排设置在内圈和外圈之间并分离内圈和外圈 。 滚动轴承还包括设置在至少一部分辊周围的至少一个滚动轴承保持架，并被构造成在至少一排中保持每个辊与每个相邻辊的预定间隔，其中滚动轴承保持架包括塑料 是至少一个环形或分段的主体。 主体具有用于接收各滚动元件的开口。
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