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1. 发明授权

US12140181B2 Pre-loaded deep groove ball bearing 有权
公开(公告)号：US12140181B2
公开(公告)日：2024-11-12
申请号：US17902002
申请日：2022-09-02
申请人： AKTIEBOLAGET SKF
发明人： Marshall B Ahrens , John Elliot Cardwell, III
IPC分类号： F16C19/16 , F16C35/06 , F16C35/063 , F16C35/067
CPC分类号： F16C19/16 , F16C35/063 , F16C35/067 , F16C2240/56 , F16C2240/70
摘要： A mechanical assembly includes an inner member, an outer member disposed about the inner member, a bearing inner ring, a bearing outer ring and a plurality of balls disposed between the two rings. The inner member has an outer circumferential surface with an outside diameter, which has a tolerance of greater than +/−0.00125″. The outer member has an inner circumferential surface with an inside diameter, which has a tolerance of greater than +/−0.002″. The inner ring has an annular groove with an inside diameter and the outer ring has an annular groove with an outside diameter. The balls are disposed within the two grooves and has a diameter sized such that the sum of twice the diameter plus the inside diameter of the inner ring groove is greater than the outside diameter of the outer ring groove, thereby establishing an internal preload in the bearing.

2. 发明授权

US12104648B1 Annular and shaft oil dispensers 有权
公开(公告)号：US12104648B1
公开(公告)日：2024-10-01
申请号：US17887421
申请日：2022-08-13
申请人： Zulu Pods, Inc.
发明人： Todd M. Currier , Adam G. Smedresman , Marios C. Soteriou , Robert T. Sladen
IPC分类号： F02C7/06 , F16C19/16 , F16C33/66
CPC分类号： F16C33/6681 , F16C19/16 , F16C2300/02
摘要： An engine shaft oil dispenser including an oil dispenser operatively connected to a mechanical system. The focus is the novel location and form of the oil dispenser, the delivery mechanism (tubes, passages in dispensers and shafts), as well as the filling mechanism of the annular-shaped dispenser (convenient port locations are provided). The annular-shaped dispenser is herein shown in several embodiments, including in a bearing stack, combined with a compressor/turbine disc/nut, and with various options for filling and feeding of oil. The present invention makes use of sometimes unused space in conventional stacks. The oil dispensers herein described are standalone or are incorporated into existing components. This results in more efficient and compact packaging.

3. 发明公开

US20240271659A1 Wobble Plate Bearing Arrangement And Surgical Instrument Equipped Therewith 审中-公开
公开(公告)号：US20240271659A1
公开(公告)日：2024-08-15
申请号：US18436302
申请日：2024-02-08
申请人： KARL STORZ SE & Co. KG
发明人： Sven Axel GRÜNER
IPC分类号： F16C19/16 , A61B17/28
CPC分类号： F16C19/16 , A61B17/2812 , F16C2316/10
摘要： A surgical instrument and a bearing arrangement includes a wobble plate having a main shaft. The wobble plate is rotatable about two axes and to the main axes of the main shaft. An intersection of the two axes defines a pivot center of the wobble plate and is located on the main axis. The main shaft has a spherical coupling portion. The wobble plate includes a hollow spherical outer bearing opening. A bearing arrangement includes rolling bearing balls and a ball cage movably arranged in the outer bearing opening and delimits a hollow spherical inner bearing opening. The ball cage includes window openings in which the rolling bearing balls are arranged. The coupling portion has first round grooves for the rolling bearing balls and the outer bearing opening has second round grooves for the rolling bearing balls.

4. 发明公开

US20240229867A9 EXTERNAL SNAP RING RETAINER 审中-公开
公开(公告)号：US20240229867A9
公开(公告)日：2024-07-11
申请号：US17969130
申请日：2022-10-19
申请人： GM GLOBAL TECHNOLOGY OPERATIONS LLC
发明人： Gregory William Deneszczuk , Jesus Rene Sanchez Urbina
IPC分类号： F16C35/063 , F16C19/16
CPC分类号： F16C35/063 , F16C19/16
摘要： A snap ring retainer system includes a first member having an annular groove therein. A second member is engaged with the first member. A snap ring is received in the annular groove and includes a first side engaging the second member and securing the second member to the first member. A snap ring retainer includes a first portion engaged with the first member and a second portion extending radially from the first portion and engaged with the snap ring on an opposite side from the second member.

5. 发明授权

US12012994B2 Bearing assembly 有权
公开(公告)号：US12012994B2
公开(公告)日：2024-06-18
申请号：US17700600
申请日：2022-03-22
申请人： Aktiebolaget SKF
发明人： Thilo von Schleinitz
IPC分类号： F16C33/64 , F16C19/16 , F16C33/58
CPC分类号： F16C33/64 , F16C19/16 , F16C33/583
摘要： A bearing assembly includes a bearing, in particular a non-locating bearing, for supporting a shaft within a housing. The bearing provides an inner ring and an outer ring. A radially outer surface of the outer ring and/or a radially outer surface of the shaft and/or a radially inner surface of the inner ring and/or a radially inner surface of the housing has a protection layer. The protection layer is a thermally expanding or shrinking layer being thermally heated and expanded to or shrunk on the respective radially inner surface and/or radially outer surface. Further, a method for manufacturing a bearing ring for such a bearing assembly is disclosed.

6. 发明公开

US20240125350A1 RADIAXIAL BEARING AND ELECTRIC MOTOR 审中-公开
公开(公告)号：US20240125350A1
公开(公告)日：2024-04-18
申请号：US18397597
申请日：2023-12-27
申请人： BIATEC MOTION s.r.o.
发明人： Miroslav VOLAK , Jozef BARNA
IPC分类号： F16C19/16 , F16C19/18 , F16C33/58
CPC分类号： F16C19/16 , F16C19/18 , F16C33/58 , F16C2380/26
摘要： Radiaxial bearing having a cylindrical configuration centered on a central axis, the bearing having at least one harmonic wave-type reduction stage and including three or more rings and a first ring-shaped arrangement of rolling elements, each being centered on the central axis, the three or more rings enclosing the ring-shaped arrangement of rolling elements such that a) an innermost of the rings has a race in contact with the rolling elements from radially inward, an outermost of the rings has a race in contact with the rolling elements from radially outward, and a third ring, and possibly a fourth ring, has or have a race or races in contact with the rolling elements axially from both sides, or b) the three or more rings have four races contacting the rolling elements in a rectangular box formation, the box formation being oriented at an oblique angle with respect to the central axis of between 0° and 360°, wherein two opposed races have structures with different spatial frequencies that are designed to force the rolling elements into a harmonic-wave type oscillation between the structured races and translating a fast rotation of a ring with a structured race having a low spatial frequency into a slow rotation of a ring having a race with a high spatial frequency during operation of the bearing, wherein the ring or one of the rings that has or have the races that are oriented perpendicular to the structured races has separators separating adjacent rolling elements from one another, and to an electric motor. At least one of the structured races is structured such as to form an obstruction having at least one curve oscillating in a direction perpendicular to the direction of the rolling elements and contacting the rolling elements off-center such that the rolling elements partially protrude beyond the obstruction by varying amounts.

7. 发明授权

US11898604B2 Ball bearing 有权
公开(公告)号：US11898604B2
公开(公告)日：2024-02-13
申请号：US17383584
申请日：2021-07-23
申请人： MINEBEA MITSUMI Inc.
发明人： Tadahiko Karaki , Hirotaka Tohyama , Kunihiro Matsumoto
IPC分类号： F16C33/44 , F16C33/38 , F16C33/41 , F16C19/06 , C08L71/00 , C08K7/06 , F16C19/16
CPC分类号： F16C33/44 , C08K7/06 , C08L71/00 , F16C33/3856 , F16C33/416 , F16C19/06 , F16C19/16 , F16C2208/02 , F16C2208/36 , F16C2316/13
摘要： A ball bearing includes an inner ring; an outer ring placed outside of the inner ring; a plurality of rolling bodies intervening between the inner ring and the outer ring; and an annular cage including pockets rotatably holding the rolling bodies in a circumferential direction at intervals determining a rotation axis to be a center. The cage comprises a resin composition comprising a polyetherketone-based resin, graphite, and a carbon fiber. The resin composition comprises the polyetherketone-based resin in an amount of 60% by weight or more and 80% by weight or less, the graphite in an amount of 10% by weight or more and 30% by weight or less, and the carbon fiber in an amount of 5% by weight or more and 20% by weight or less when the entire resin composition is determined to be 100% by weight.

8. 发明公开

US20230204073A1 BEARING SEAL AND ITS APPLICATIONS 审中-公开
公开(公告)号：US20230204073A1
公开(公告)日：2023-06-29
申请号：US17992719
申请日：2022-11-22
申请人： Aktiebolaget SKF
发明人： Meng ZHANG , Dapeng LI , Yangguang ZHAO
IPC分类号： F16C33/80 , F16C19/16
CPC分类号： F16C33/80 , F16C19/16
摘要： A bearing seal provides a first sealing member to be secured to a shoulder on one side of a first bearing ring and a second sealing member that can be secured to a shoulder on the same side of a second bearing ring. A labyrinth seal gap is formed between the first sealing member and the second sealing member, which has at least one tooth-shaped turn. On the basis of the above bearing seal, the present invention further provides a rolling bearing that employs the bearing seal on an axial side thereof.

9. 发明授权

US10865862B2 Pulley and ball nut assembly 有权
公开(公告)号：US10865862B2
公开(公告)日：2020-12-15
申请号：US16112917
申请日：2018-08-27
申请人： Hitachi Automotive Systems Americas, Inc.
发明人： Charles Durbin , Satoru Muto , Bikal Adhikari , Ryo Tashiro
IPC分类号： F16H25/22 , F16C19/16 , F16H57/00 , F16H25/20
CPC分类号： F16H25/2214 , F16C19/16 , F16H57/0025 , F16H2025/2096
摘要： In some examples, a ball nut includes a first end and an outer cylindrical surface having a first diameter. A pulley may be mounted on the first end of the ball nut. The pulley may include an inner cylindrical surface having a second diameter larger than the first diameter of the ball nut and sized to engage with the outer cylindrical surface in a press fit. Furthermore, a circumferential groove may be formed in a portion of the first end of the ball nut extending beyond the pulley when the pulley is mounted on the first end of the ball nut. A retaining ring is disposed in the circumferential groove to prevent removal of the pulley from the first end of the ball nut. Furthermore, a portion of the ball nut may engage with a portion the pulley to prevent relative rotation between the pulley and the ball nut.

10. 发明授权

US10844745B2 Bearing assembly 有权
公开(公告)号：US10844745B2
公开(公告)日：2020-11-24
申请号：US16369647
申请日：2019-03-29
申请人： PRATT & WHITNEY CANADA CORP.
发明人： Guy Lefebvre , Remy Synnott
IPC分类号： F16C19/08 , F16C19/16 , F16C19/38 , F16C25/08 , F01D9/04 , F01D5/02 , F01D25/16 , F16C19/52
CPC分类号： F01D25/164 , F01D9/041 , F16C19/08 , F16C19/38 , F16C19/52 , F01D5/027 , F05D2220/32 , F05D2240/54 , F05D2240/91 , F05D2260/15 , F16C19/16 , F16C2360/23
摘要： There is disclosed a bearing assembly for a gas turbine engine. The bearing assembly has a central axis and includes at least two bearings being axially spaced from one another relative to the central axis and configured to rotatably support a rotating component of the gas turbine engine. A bearing housing includes bearing supports supporting the at least two bearings. The bearing housing is securable to a casing of the gas turbine engine via hairpin structures being axially spaced from one another.

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